TY - CHAP A1 - Döhring, Thorsten T1 - Hochschule Aschaffenburg T2 - Deutsche Raumfahrtakteure : Bundesländer – Organisation – Raumfahrt – raumfahrtbasierte Anwendungen N2 - Die Hochschule Aschaffenburg zeichnet sich durch wirtschaftsnahe, überwiegend interdisziplinäre und innovative Studiengänge aus. Enge Kooperationen mit Unternehmen sowie Partnerschaften mit ausländischen Hochschulen garantieren den Studierenden, dass sie praxisrelevantes Wissen erwerben, welches für eine erfolgreiche Arbeit in einer zunehmend globalen Arbeitswelt erforderlich ist. Professorinnen und Professoren der Fakultät Ingenieurwissenschaften sind mit ihren Forschungsteams über internationale Kooperationen an mehreren Raumfahrtprojekten beteiligt. Es werden Spiegelschichten für Röntgensatelliten entwickelt, Katalysatoren für Raketentriebwerke beschichtet und die Auswirkungen kosmischer Strahlung auf das Herz-Kreislauf-System und auf Gehirnzellen untersucht. Die Ergebnisse werden in wissenschaftlichen Publikationen und auf Fachkonferenzen präsentiert. Studierende sind über Spezialvorlesungen und Abschlussarbeiten zu Raumfahrtthemen hierbei mit eingebunden. KW - Raumfahrt KW - Beschichtung KW - Raumfahrttechnik KW - Hochschule Aschaffenburg Y1 - 2018 UR - https://www.dlr-innospace.de/?smd_process_download=1&download_id=2044 SP - 87 EP - 87 PB - Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR) CY - Köln ER - TY - CHAP A1 - Krieg, Janina A1 - Carre, Antoine A1 - Döhring, Thorsten A1 - Hartmann, Peter A1 - Hull, Tony A1 - Jedamzik, Ralf A1 - Westerhoff, Thomas T1 - The past decade of ZERODUR® glass-ceramics in space applications T2 - Proceedings of SPIE N2 - For the past four decades, ZERODUR® glass ceramics has flown on many satellites including the prominent space missions METEOSAT, Hubble Space Telescope, CHANDRA, and LISA pathfinder. Firstly, this unique material is chosen as mirror substrate for high precision optics due to its extreme thermal stability. Its near-zero thermal expansion over a wide temperature range of several tens of Kelvin is homogenous within the entire volume. This enables control of the ZERODUR®’s surface profile at the 10-picometer level. SCHOTT has conducted comprehensive material characteristics studies on the mechanical properties and the radiation environment effects experienced in realistic orbits to define the suitability of ZERODUR® to survive both high loads during launch and to support long-term missions, respectively. Besides these advantageous material properties, this glass-ceramics can be extremely light-weighted by precision grinding enabled by the new SCHOTT competence center for machining and metrology. In this paper, we will continue to trace the recent developments of ZERODUR® glass ceramics as space material in the context of selected missions flown since 2009 and those anticipated. Major milestones such as the LISA pathfinder mission are discussed. Furthermore, we outline the viable use of ZERODUR® for great observatory architectures for IR/O/UV spaceborne telescopes. The objective of this paper is to supplement an earlier review of the use of ZERODUR® for space applications in the past decade and to summarize the latest progress and results of material studies toward very efficient production capabilities for high-performance light-weighted mirror substrates. KW - mirror KW - space KW - glass ceramics KW - low thermal expansion KW - satellite KW - Spiegelteleskop KW - Zerodur KW - Glaskeramik Y1 - 2022 U6 - https://doi.org/https://doi.org/10.1117/12.2628956 VL - 2022 IS - 12180 SP - 121805N-1 EP - 121805N-15 PB - SPIE ER - TY - CHAP A1 - Döhring, Thorsten A1 - Zeising, Sebastian A1 - Stieglitz, Veronika A1 - Burwitz, Vadim A1 - Rukdee, Surangkhana A1 - Friedrich, Peter A1 - Jelinek, Martin A1 - Hudec, Rene T1 - Röntgenteleskop-Funktionstests durch Beobachtung astronomischer Objekte am sichtbaren Nachthimmel T2 - DGaO Proceedings N2 - Lobster-Eye-Röntgenteleskope nutzen reflektierende Planspiegel unter streifendem Einfall und zeichnen sich durch ein großes Beobachtungsfeld aus. Die Spiegel reflektieren auch sichtbare Strahlung hervorragend. Nach Röntgen-messungen im Labor wurden nun weitere Tests durchgeführt, um die Abbildungs-eigenschaften mit realen Objekten des sichtbaren Himmels zu untersuchen. KW - Röntgenstrahlung KW - Teleskop KW - Lobster-Eye KW - Iridium KW - Astronomie KW - Röntgenteleskop KW - Spiegelteleskop Y1 - 2022 UR - https://www.dgao-proceedings.de/download/123/123_a35.pdf SN - 1614-8436 VL - 2022 SP - 1 EP - 2 PB - DGaO ER - TY - CHAP A1 - Döhring, Thorsten A1 - Stollenwerk, Manfred A1 - Schmitt, Paul A1 - Szeghalmi, Andrea T1 - Umweltbeständige Spiegelbeschichtungen aus Iridium für den infraroten Spektralbereich T2 - DGaO Proceedings N2 - Das Edelmetall Iridium ist hart; extrem dicht; thermisch, mechanisch und chemisch stabil; weist eine hohe Reflektivität im mittleren und fernen Infrarot auf und hat eine hohe Beständigkeit gegenüber Umwelteinflüssen - auch ohne weitere Schutzschichten. Es wurden die komplexen Brechungsindizes für Iridium-Spiegelbeschichtungen bestimmt, welche vorhandene Literaturwerte ergänzen. KW - Iridium KW - Spiegel KW - Reflektivität KW - Brechungsindex KW - ALD KW - Iridium KW - Beschichtung Y1 - 2022 UR - https://www.dgao-proceedings.de/download/123/123_p13.pdf SN - 1614-8436 VL - 2022 IS - 123 SP - 1 EP - 2 PB - DGaO ER - TY - CHAP A1 - Hudec, Rene A1 - Gille, Florian A1 - Guimbelot, Elzear A1 - Tichy, Vladimir A1 - Döhring, Thorsten T1 - Effective areas of astronomical X-ray optics for cubesats and rocket experiments T2 - DGaO Proceedings N2 - The effective area is one of the main telescope parameters when justifying real space application. We discuss the estimation of the effective collecting area of an X-ray telescope by two different methods, an analytical method and a simulation algorithm, and then compare the results. The Lobster Eye type telescopes considered here are designed for rocket experiments and CubeSat flights. KW - X-ray KW - telescope KW - satellite KW - effective area KW - Lobster Eye KW - Röntgenteleskop Y1 - 2022 UR - https://www.dgao-proceedings.de/download/123/123_p12.pdf SN - 1614-8436 VL - 2022 IS - 123 SP - 1 EP - 2 PB - DGaO ER - TY - GEN A1 - Döhring, Thorsten A1 - Stollenwerk, Manfred A1 - Schmitt, Paul A1 - Szeghalmi, Adriana T1 - Umweltbeständige Spiegelbeschichtungen aus Iridium für den infraroten Spektralbereich N2 - Hochreflektierende Metallbeschichtungen sind essenziell für zahlreiche optische Elemente. Bewährte Spiegelbeschichtungen aus Silber und Gold bieten eine hohe und breitbandige Eigenreflexion im infraroten Spektralbereich, sind ohne geeignete Schutzschichten jedoch anfällig gegenüber Umwelteinflüssen und mechanischer Beanspruchung. Insbesondere im langwelligen Spektralbereich verringern die Absorptionsbanden dieser Schutzschichten teilweise die hohe Spiegelreflektivität wieder. Das Edelmetall Iridium (Ir) ist hart; extrem dicht; thermisch, mechanisch und chemisch stabil; weist eine ähnlich hohe Reflektivität im mittleren und fernen Infrarot, wie Silber und Gold, auf und hat zusätzlich eine hohe Beständigkeit gegenüber Umwelteinflüssen - auch ohne Schutzschichten. In diesem Beitrag werden die optischen und strukturellen Eigenschaften von Iridium-Spiegelbeschichtungen, welche mittels Atomlagenabscheidung (ALD) und DC-Magnetron-Sputtern hergestellt wurden, vorgestellt und miteinander verglichen. Die komplexen Brechungsindizes für ALD-erzeugte und gesputterte Iridium-Spiegelbeschichtungen wurden für Wellenlängen von 200 nm bis 20 μm bestimmt, welche nun bereits vorhandene Literaturwerte ergänzen. N2 - Poster KW - Iridium KW - Brechungsindex KW - infrarot KW - Spiegel KW - Beschichtung KW - Iridium KW - Beschichtung Y1 - 2022 SP - 1 EP - 1 PB - DGaO ER - TY - GEN A1 - Hudec, Rene A1 - Gille, Florian A1 - Guimbelot, Elzear A1 - Tichy, Vladimir A1 - Döhring, Thorsten T1 - Effective areas of astronomical X-ray optics for cubesats and rocket experiments N2 - We address the problem of estimation the sensitivity of astronomical X-ray telescopes of Lobster Eye type , with emphasis on calculation of effective areas for telescopes designed for rocket and CubeSat flights. This parameter is one of the principal parameters when justifying the real space application. Indeed, the larger the effective area is, the more efficient the optical system is, able to provide images of fainter and more distant celestial targets. We discuss the estimation of the effective collecting area of a X-ray telescope by two different methods and then compare the results: the analytical method and then the simulation algorithm. N2 - Poster KW - CubeSat KW - rocket KW - X-ray KW - telescope KW - effective area KW - Röntgenteleskop Y1 - 2022 SP - 1 EP - 1 PB - DGaO ER - TY - CHAP A1 - Döhring, Thorsten A1 - Stollenwerk, Manfred A1 - Schmitt, Paul A1 - Szeghalmi, Adriana T1 - Environmentally stable iridium mirror coatings for the infrared spectral range T2 - Proceedings of SPIE N2 - Highly reflective metal coatings are essential for numerous optical elements. Established mirror coatings made of silver (Ag) and gold (Au) offer high and broadband self-reflection in the infrared (IR) spectral range but are susceptible to environmental influences and mechanical stress without suitable protective layers. In the long-wavelength spectral range, in particular, the absorption bands of these protective layers partially reduce the high mirror reflectivity again. However, the noble metal iridium (Ir) is hard, extremely dense, and thermally, mechanically, and chemically stable. Iridium provides a similarly high reflectivity in the mid (MIR) and far-infrared (FIR) spectral range, as silver and gold, and high resistance to environmental influences - even without protective layers. In this paper, the different deposition processes, as well as the optical and structural properties of iridium mirror coatings fabricated by atomic layer deposition (ALD) and by magnetron sputtering (MS), are presented and compared with each other. The complex refractive indices for ALD and MS deposited iridium mirror coatings were determined for wavelengths from 200 nm to 20 μm, complementing the existing literature values. We demonstrate that iridium mirror coatings offer a high and broadband reflectivity from the mid to far-infrared spectral range. In contrast to established – protected – silver and gold mirror coatings, the iridium coatings are environmentally durable and thermally stable up to 600 °C, even without protective layers. Therefore, as an interesting mirror coating material, iridium has the potential for special applications in infrared astronomy and probably also for industrial instruments. KW - iridium KW - coating KW - magnetron sputtering KW - atamic layer deposition KW - reflectivity KW - Iridium KW - Beschichtung Y1 - 2022 U6 - https://doi.org/https://doi.org/10.1117/12.2632057 VL - 2022 IS - 12298 SP - 122980A-1 EP - 122980A-08 PB - SPIE ER - TY - CHAP A1 - Döhring, Thorsten A1 - Stieglitz, Veronika A1 - Hudec, Rene A1 - Sapsai, Iryna A1 - Friedrich, Peter A1 - Burwitz, Vadim T1 - Characterization of a lobster-eye type X-ray telescope T2 - EOSAM-Conference N2 - Lobster-eye type X-ray telescopes use reflecting plano mirrors under grazing incidence and can observe a large field of view. As part of a Bavarian-Czech cooperation, two telescopes were build, equipped with mirrors coated with gold and iridium. Their X-ray characterization was carried out at the PANTER test facility, which simulates parallel starlight incident on the telescopes. The telescopes have an angular resolution of about 4 arc minutes in X-rays and a focal length of about 2 meters. The used X-ray mirrors reflect and focus visible light as well; their functionality in the optical regime was checked in laboratory tests. Now another test campaign will be carried out to examine the telescope resolution for real objects of the visible night sky and the imaging properties for star constellations. KW - Lobster-Eye KW - X-ray KW - telescope KW - iridium KW - mirror KW - Röntgenteleskop KW - Iridium KW - Röntgenspiegel Y1 - 2022 UR - https://www.europeanoptics.org/events/eos/eosam2022.html VL - 2022 SP - 1 EP - 1 ER - TY - CHAP A1 - Kätker, Anna A1 - Schreiber, Kai A1 - Busch, Uwe A1 - Stanik, Eva A1 - Döhring, Thorsten T1 - Unsichtbares erkunden - Experimente im Museumslabor RöLab des Deutschen Röntgen-Museums N2 - Das RöLab versteht sich als ein überregionales, außerschulisches Bildungsangebot, das Begeisterung für Natur- und Ingenieurwissenschaften, Medizin und Medizintechnik an unterschiedliche Zielgruppen vermittelt und damit einen Beitrag zur Allgemeinbildung und MINT-Förderung leistet. Das didaktische Konzept nimmt den „Hands-on-Science“ Gedanken stringent auf, weckt den Forschergeist und ermöglicht es den Lernenden, Unsichtbares zu erkunden. KW - Wilhelm Conrad Röntgen KW - Museum KW - Röntgenstrahlung KW - MINT KW - Röntgen, Wilhelm Conrad, 1845-1923 KW - Deutsches Röntgen-Museum KW - Röntgenstrahlung Y1 - 2023 UR - https://www.dgao-proceedings.de/download/124/124_p30.pdf SN - 1614-8436 VL - 2023 IS - 124 SP - 1 EP - 2 PB - DGaO Proceedings ER - TY - CHAP A1 - Hudec, Rene A1 - Pomahač, Vit A1 - Stanik, Eva A1 - Döhring, Thorsten A1 - Schilling, Klaus T1 - Space Telescopes based on Satellite Tandem Flights T2 - DGaO Proceedings N2 - Progress in satellite control engineering enables tandem flight arrangements of mini-satellites in future space missions. Cost effective CubeSat technologies offer an interesting possibility for space-born telescope payloads. Two small satellites will carry the telescope optics and the detector system, respectively. Related formation flight requirements could be transferred from the NetSat-Mission. KW - Astronomy KW - CubeSat KW - Satellite KW - Tandem Flight KW - Telescope KW - Röntgenteleskop KW - Kleinsatellit Y1 - 2023 UR - https://www.dgao-proceedings.de/download/124/124_p29.pdf SN - 1614-8436 VL - 2023 ER - TY - GEN A1 - Stanik, Eva A1 - Döhring, Thorsten A1 - Schreiber, Kai A1 - Kätker, Anna A1 - Busch, Uwe T1 - X-ray honour gallery - award winners of the Röntgen Medal N2 - Starting in 1951, on the 50th anniversary of the award of the first Nobel Prize for physics to Wilhelm Conrad Röntgen, the Lord Mayor of the German city of Remscheid has annually awarded Röntgen Medals to scientists who "in the broadest sense have made a special contribution to the progress and dissemination of X-ray discoveries in the theoretical and applied sciences". The Röntgen Medal has become highly recognized in the scientific world. To date, more than one hundred scientists have received this honour. Through their chronology, this contribution presents a "Who’s Who" of X-ray science and provides selected insights into their scientific work; with special focus on the fields of X-ray optics and X-ray astronomy. N2 - Poster KW - X-ray KW - X-ray discoveries KW - X-ray optics KW - X-ray astronomy KW - Röntgen Medal KW - Röntgen, Wilhelm Conrad, 1845-1923 KW - Medaille KW - Röntgenstrahlung Y1 - 2022 ER - TY - GEN A1 - Schreiber, Kai A1 - Kätker, Anna A1 - Busch, Uwe A1 - Stanik, Eva A1 - Döhring, Thorsten T1 - Insights into the history of X-rays: the Deutsches Röntgen-Museum in Remscheid N2 - In 1895, Professor Wilhelm Conrad Röntgen detected a new kind of radiation that was able to penetrate solid materials, which he called x-rays. In 1901 Röntgen received the first Nobel Prize in physics in honour of this ground breaking discovery. The Deutsches Röntgen-Museum in Remscheid in Germany is the institution that uniquely and comprehensively explores and documents the life and work of W. C. Röntgen and the impact of his discovery. The museum’s location in Remscheid is not coincidental, with Röntgen’s birthplace only a short walk away from its exhibits. Every visit to the museum amounts to a unique expedition through the worlds of medicine, science, and technology. The museum’s emphasis on the diversity of Röntgen’s invention by a multilingual, multi-medial approach enables all visitors to make their own personal discoveries. The Deutsches Röntgen-Museum in Remscheid is a mustsee for x-ray scientists from anywhere in the world. This contribution provides an insight into the history of x-rays and offers a guided tour of the Deutsches Röntgen-Museum and its exhibits. N2 - Poster KW - X-ray history KW - Deutsches Röntgen-Museum KW - Wilhelm Conrad Röntgen KW - X-rays KW - Röntgen, Wilhelm Conrad, 1845-1923 KW - Röntgenstrahlung KW - Deutsches Röntgen-Museum Y1 - 2022 ER - TY - GEN A1 - Kätker, Anna A1 - Schreiber, Kai A1 - Busch, Uwe A1 - Stanik, Eva A1 - Döhring, Thorsten T1 - Unsichtbares erkunden - Experimente im Museumslabor des Deutschen Röntgen-Museums T2 - DGaO Jahrestagung N2 - „Freude habe ich nur, solange ich es mit dem Experimentieren zu tun habe“, schrieb Wilhelm Conrad Röntgen am 9.6.1920 an Margret Boveri. Das Deutsche Röntgen-Museum und das Remscheider Röntgengymnasium geben getreu diesem Motto Kindern und Jugendlichen die Möglichkeit, selbst aktiv zu werden, zu experimentieren und so auf den Spuren dieses bedeutenden Forschers zu wandeln. Hierzu wurde am 8. November 2011, einem Jahrestag der Entdeckung der Röntgenstrahlen, das Museumslabor RöLab gegründet. Dort werden Themenbrücken in das tägliche Leben geschlagen und so Lernprozesse im MINT-Bereich für die jungen Forschenden anregend, attraktiv und nachhaltig erlebbar. Das RöLab versteht sich als ein überregionales, außerschulisches Bildungsangebot, das Begeisterung für Natur- und Ingenieurwissenschaften, Medizin und Medizintechnik an unterschiedliche Zielgruppen vermittelt und damit einen Beitrag zur Allgemeinbildung und MINT-Förderung leistet. Das didaktische Konzept nimmt den „Hands-on-Science“ Gedanken stringent auf, weckt den Forschergeist und ermöglicht es den Lernenden, Unsichtbares zu erkunden. Dieser Beitrag stellt das Museumslabor RöLab des Deutschen Röntgen-Museums vor. N2 - Poster KW - Röntgenstrahlung KW - MINT KW - Museum KW - Röntgen KW - Deutsches Röntgen-Museum KW - Röntgen, Wilhelm Conrad, 1845-1923 KW - Röntgenstrahlung Y1 - 2023 UR - https://www.dgao-proceedings.de/abstract/abstract_only.php?id=2911 VL - 2023 SP - 1 EP - 1 PB - DGaO ER - TY - GEN A1 - Busch, Uwe A1 - Kätker, Anna A1 - Schreiber, Kai A1 - Stanik, Eva A1 - Döhring, Thorsten T1 - Hommage auf einen bedeutenden Wissenschaftler - das Deutsche Röntgen-Museum T2 - DGaO Jahrestagung N2 - In diesem Jahr jährte sich der Todestag von Wilhelm Conrad Röntgen, gestorben am 10. Februar 1923, zum hundertsten Mal. Dieser Beitrag ist eine Hommage auf diesen bedeutenden deutschen Wissenschaftler. 1895 entdeckte er eine neue Art von Strahlung, welche in der Lage ist, feste Materialien zu durchdringen. 1901 erhielt Professor Röntgen für diese bahnbrechende Entdeckung den ersten Nobelpreis für Physik. Das Deutsche Röntgen-Museum (DRM) erforscht und dokumentiert das Leben und Werk von W. C. Röntgen und die Auswirkungen seiner Entdeckung auf eine einzigartige und umfassende Weise. Der Standort des DRM in Remscheid ist kein Zufall, denn Röntgens Geburtshaus liegt nur wenige Gehminuten von den Exponaten entfernt. Die Betonung der Vielfalt von Röntgens Erfindung durch das Museum mit einer multimedialen Herangehensweise ermöglicht es den Besuchern, hier ihre ganz persönlichen Entdeckungen zu machen. Jeder Museumsbesuch wird so zu einer einzigartigen Entdeckungsreise durch die Welt der Medizin, Wissenschaft und Technik. Dieser Beitrag würdigt das Lebenswerk von Professor Wilhelm Conrad Röntgen und gibt einen Einblick in die Geschichte der Röntgenstrahlen und ihre Anwendungsgebiete. N2 - Poster KW - Röntgen KW - Röntgenstrahlung KW - Museum KW - Deutsches Röntgen-Museum KW - Röntgen, Wilhelm Conrad, 1845-1923 KW - Röntgenstrahlung Y1 - 2023 UR - https://www.dgao-proceedings.de/abstract/abstract_only.php?id=2914 VL - 2023 SP - 1 EP - 1 PB - DGaO ER - TY - GEN A1 - Hudec, René A1 - Pomahac, Vit A1 - Döhring, Thorsten A1 - Stanik, Eva A1 - Klaus, Schilling T1 - Space Telescopes based on Satellite Tandem Flights T2 - DGaO Jahrstagung N2 - Due to the recent progress in satellite control engineering, tandem flight arrangements of mini-satellites are currently in discussion and under consideration for future space missions. CubeSat technologies offer an interesting possibility for space-born telescope payloads based on this approach. In such a scenario, two small satellites will fly at a constant distance of a few meters up to 100 meters. Thereby, the front satellite will carry the telescope optics and the second satellite the detector system. Related formation flight requirements were addressed in the NetSat-Mission, composed of four 3U-CubeSats, launched 2020. Space technology challenges concern in particular orbit control by an appropriate propulsion system as well as precision attitude pointing towards the joint target, and could be transferred from the NetSat-mission to the proposed Tandem Mission. This will allow space-based telescopes with a long focal length even placed on board of small or miniature CubeSat-type satellites. Cost effective Kirkpatrick-Baez type X-ray telescopes represent an important application here as they have longer focal lengths compared to previous astronomical observatories using Wolter I type X-ray mirrors. N2 - Poster KW - Satellite KW - CubeSat KW - Tandem Flight KW - Astronomy KW - Telescope KW - Röntgenteleskop KW - Kleinsatellit Y1 - 2023 UR - https://www.dgao-proceedings.de/abstract/abstract_only.php?id=2951 VL - 2023 SP - 1 EP - 1 PB - DGaO ER - TY - CHAP A1 - Schreiber, Kai A1 - Kätker, Anna A1 - Busch, Uwe A1 - Stanik, Eva A1 - Döhring, Thorsten T1 - A guided tour of the Deutsches Röntgen-Museum: displaying X-ray history T2 - SPIE Proceedings N2 - In 1895, Professor Wilhelm Conrad Röntgen detected a new type of radiation that was able to penetrate solid materials, which he called X-rays. In 1901 Röntgen received the first Nobel Prize in physics in honour of this ground breaking discovery. The Deutsches Röntgen-Museum (DRM) in Remscheid (Germany) is the institution that uniquely and comprehensively explores and documents the life and work of W. C. Röntgen and the impact of his discovery. The DRM’s location in Remscheid is not coincidental, with Röntgen’s birthplace only a short walk away from the exhibits. Every visit to the museum amounts to a unique expedition through the worlds of medicine, science and technology. The museum’s emphasis on the diversity of Röntgen’s invention by a multilingual, multi-medial approach enables all visitors to make their own personal discoveries. The Deutsches Röntgen-Museum in Remscheid is a must-see for X-ray scientists from anywhere in the world. This contribution provides an insight into the history of X-rays and offers a guided tour of the Deutsches Röntgen-Museum and its exhibits. KW - Wilhelm Conrad Röntgen KW - X-ray KW - science history KW - education KW - Röntgen, Wilhelm Conrad, 1845-1923 KW - Röntgenstrahlung KW - Deutsches Röntgen-Museum Y1 - 2023 U6 - https://doi.org/doi: 10.1117/12.2665419 VL - 2023 IS - 12576 SP - 125760A-1 EP - 125760A-9 PB - SPIE ER - TY - CHAP A1 - Stanik, Eva A1 - Döhring, Thorsten A1 - Schreiber, Kai A1 - Kätker, Anna A1 - Busch, Uwe T1 - The Röntgen Medal: honouring X-ray excellence T2 - SPIE Proceedings N2 - Starting in 1951, the 50th anniversary of the award of the first Nobel Prize for physics to Wilhelm Conrad Röntgen, the Lord Mayor of the German City of Remscheid has given out Röntgen Medals. The Röntgen Medal annually honours scientists who "in the broadest sense have made a special contribution to the progress and dissemination of X-ray discoveries in the theoretical and applied sciences". The Röntgen Medal has become highly recognized in the scientific world. To date, more than one hundred excellent scientists have received the honour. Through their chronology, this contribution presents a "Who’s Who" of X-ray science and provides selected insights into their scientific work; with the fields of X-ray optics and X-ray astronomy receiving special focus. KW - Röntgen medal KW - X-ray optics KW - X-ray astronomy KW - science history KW - Röntgen, Wilhelm Conrad, 1845-1923 KW - Auszeichnung KW - Röntgenoptik KW - Röntgenastronomie Y1 - 2023 U6 - https://doi.org/doi: 10.1117/12.2665424 VL - 2023 IS - 12576 SP - 1257608-1 EP - 1257608-8 PB - SPIE ER - TY - CHAP A1 - Pomahac, Vit A1 - Hudec, Rene A1 - Döhring, Thorsten T1 - CubeSat tandem flight for asteroid surveillance T2 - SPIE Proceedings N2 - Conventional mining might not be sufficient to support the growth of humankind which is heavily dependent upon rare materials in technical applications. Asteroid mining might be an answer, with Near-Earth objects (NEOs) being the first targets. However, the first step in the asteroid mining cascade is to probe reachable asteroids. Moreover, to identify the best candidates for further activities hundreds to thousands of asteroids must be screened. The fast progressing development of CubeSats might allow the space community to do the initial in-situ screening in a minimalistical and economical manner. Additionally, formation flying might enable the miniaturization of optical payloads for asteroid composition analysis in CubeSats. The recent developments in formation flying are summarised in this study and the possibility of utilizing formation flying CubeSats for asteroid surveillance explored. KW - asteroid surveillence KW - asteroid mining KW - formation flight KW - tandem flight KW - CubeSat KW - Planetoid KW - Rohstoffgewinnung KW - Kleinsatellit Y1 - 2023 U6 - https://doi.org/doi: 10.1117/12.2672396 VL - 2023 IS - 12576 SP - 125760H-1 EP - 125760H-5 PB - SPIE ER - TY - CHAP A1 - Busch, Uwe A1 - Kätker, Anna A1 - Schreiber, Kai A1 - Stanik, Eva A1 - Döhring, Thorsten T1 - Hommage auf einen bedeutenden Wissenschaftler - das Deutsche Röntgen-Museum T2 - DGaO Proceedings N2 - 2023 jährte sich der Todestag von Wilhelm Conrad Röntgen zum einhundertsten Mal. Im Jahr 1895 entdeckte er eine neue Art von Strahlung, die feste Materialien durchdringen kann. 1901 erhielt er für diese Entdeckung den ersten Nobelpreis für Physik. Das Deutsche Röntgen-Museum erforscht und dokumentiert das Leben und Werk von W. C. Röntgen und die Auswirkungen seiner Entdeckung. KW - Wilhelm Conrad Röntgen KW - Museum KW - Wissenschaftsgeschichte KW - Röntgenstrahlung KW - Röntgen, Wilhelm Conrad, 1845-1923 KW - Deutsches Röntgen-Museum KW - Röntgenstrahlung Y1 - 2023 UR - https://www.dgao-proceedings.de/download/124/124_p31.pdf SN - 1614-8436 VL - 2023 IS - 124 SP - 1 EP - 2 PB - DGaO ER - TY - CHAP A1 - Döhring, Thorsten A1 - Stieglitz, Veronika A1 - Friedrich, Peter A1 - Burwitz, Vadim A1 - Jelinek, Martin A1 - Hudec, Rene T1 - Testing of lobster-eye type telescopes with X-rays and visible light T2 - SPIE Proceedings N2 - Reflective coatings for astronomical X-ray optics were developed at the “Aschaffenburg Competence Center for Astronomical and Space Instrumentation” (ACCASI) since several years. As part of a Bavarian-Czech cooperation between the Technical University of Aschaffenburg and the Czech Technical University of Prague, now two mechanically identical telescopes were built. One telescope optic was equipped with conventional gold-coated mirrors, manufactured by the Czech project partners. The 34 X-ray mirrors of the second telescope use an innovative coating system made of chromium and iridium, which was applied at the Aschaffenburg coating laboratory. Both telescopes are designed according to the bionic principle of a reflecting lobster eye. The optics works with two consecutive reflections on mutually perpendicular mirror surfaces. This enables a large field of view with many square degrees in diameter, which, however, comes at the price of a reduced angular resolution. An extensive X-ray characterization of these telescopes was carried out at the PANTER test facility of MPE, which simulates parallel starlight incident on the telescopes. The telescopes have an angular resolution of about 4 arc minutes in X-rays and a focal length of about 2 meters. Furthermore, the used X-ray mirrors reflect and focus visible light as well and this functionality in the optical regime was checked in laboratory tests. Now another test campaign was done to examine the telescope resolution for real objects of the visible sky and the imaging properties for star constellations. Such functional tests by observing astronomical objects of the visible sky may simplify and accelerate the development of X-ray telescopes for satellite applications. KW - X-rays KW - Telescopes KW - X-ray telescopes KW - Reflection KW - Mirrors KW - Röntgenteleskop Y1 - 2023 U6 - https://doi.org/https://doi.org/10.1117/12.2665429 VL - 2023 IS - 12576 SP - 1257606-1 EP - 1257606-5 PB - SPIE ER - TY - GEN A1 - Ermilova, Elena A1 - Hertwig, Andreas A1 - Döhring, Thorsten A1 - Stanik, Eva A1 - Cotroneo, Vincenzo A1 - Gibertini, Eugenio T1 - Ellipsometrische Charakterisierung von Polydopamin für funktionelle technische Schichten N2 - Obwohl das organische Molekül Dopamin (3,4-Dihydroxyphenethylamin) allgemein eher als „Glückshormon“ bekannt ist, sind dünne Schichten aus Polydopamin heute zunehmend auch für innovative technische Anwendungen von Interesse. Ein Beispiel sind reflexionsverstärkende Beschichtungen für astronomische Röntgenspiegel. Bei der Herstellung durch eine Tauchbeschichtung wachsen die selbstorganisierenden Polydopamin-Schichten in Einzel- oder Mehrfach-Moleküllagen mit reproduzierbaren Dicken von wenigen Nanometern auf. Mit der Methode der spektroskopischen Ellipsometrie wurde die dielektrische Funktion von Polydopamin vom ultravioletten bis zum nahen infraroten Spektralbereich zunächst bei Modellschichten ausreichender Dicke vermessen. Über ein optisches Modell wurden diese Daten dann zur Bestimmung der Schichtdicken deutlich dünnerer Polydopamin-Schichten verwendet. Das Ergebnis dieser Studie ermöglicht ein besseres Verständnis des Zusammenhangs von Schichtdicken und Schichteigenschaften in Abhängigkeit von den gewählten Prozessparametern. Darüber hinaus wird ein Ausblick auf potentielle weitere technische Anwendungen des interessanten bionischen Materials Polydopamin gegeben. N2 - Poster KW - Optik bei unkonventionellen Wellenlängen KW - Dünne Schichten KW - Optische Materialeigenschaften KW - Dünne Schicht KW - Röntgenastronomie Y1 - 2024 UR - https://www.dgao-proceedings.de/abstract/abstract_only.php?id=3017 ER - TY - CHAP A1 - Schneider-Störmann, Ludger A1 - Döhring, Thorsten A1 - Krauße, Sylvana T1 - Hybride Hochschulausbildung als erfolgreiches Sales Enablement Training T2 - Sales Enablement als Fundament des Vertriebserfolgs N2 - Um im technischen Vertrieb erfolgreich zu sein, bedarf es umfassender Kenntnisse bei der Vorbereitung und Durchführung von Verhandlungen, auch im interkulturellen Kontext. Dabei gilt es für Berufsanfängerinnen und Berufsanfänger, möglichst frühzeitig Erfahrungen auf diesem Gebiet zu sammeln. Hierfür eignen sich insbesondere spezialisierte Vertriebsstudiengänge. Der Studiengang Internationales Technisches Vertriebsmanagement der TH Aschaffenburg bildet Vertriebsingenieurinnen und -ingenieure u. a. durch Sales-Enablement-Trainings aus, in denen die Studierenden in interaktiven Seminaren praxisnahe Verhandlungen durchführen. Im internationalen Vergleich schneiden diese dabei hervorragend ab, was Sales Contests auf Hochschulebene belegen. Darüber hinaus fassen die Absolventinnen und Absolventen dieses Studiengangs in der Industrie schnell Fuß und erreichen bald leitende Positionen in Vertriebsabteilungen. KW - Technischer Vertrieb KW - Internationales Technisches Vertriebsmanagement KW - Interkultureller Kontext KW - Berufsanfängerinnen und Berufsanfänger KW - Vertriebsstudiengänge KW - Investitionsgütermarketing KW - Verhandlungstechnik Y1 - 2022 UR - https://link.springer.com/chapter/10.1007/978-3-658-37614-7_6 U6 - https://doi.org/10.1007/978-3-658-37614-7_6 SP - 65 EP - 79 PB - Springer-Gabler Verlag ER - TY - GEN A1 - Stanik, Eva A1 - Döhring, Thorsten A1 - Pregler, Jan A1 - Kätker, Anna A1 - Busch, Uwe A1 - Friedrich, Peter T1 - Ein Besucherexperiment zur astronomischen Röntgenoptik für das Deutsche Röntgen-Museum T2 - DGaO Proceedings N2 - Das Deutsche Röntgen-Museum in Remscheid ist eine weltweit einzigartige Institution, die das Leben und Werk des ersten Nobelpreisträgers Wilhelm Conrad Röntgen und die Auswirkungen seiner Entdeckung der Röntgenstrahlung erforscht und dokumentiert. Als integraler Bestandteil des Museums bietet das Museumslabor RöLab die Möglichkeit, durch eigene Experimente praktische Erfahrungen rund um Röntgenstrahlung, Optik und Technik zu sammeln. Im Rahmen eines gemeinsamen Entwicklungsprojekts konzipieren Studierende der Technischen Hochschule Aschaffenburg derzeit ein Besucherexperiment zur astronomischen Röntgenoptik für das Museumslabor. Optische Experimente mit sichtbarem Licht verdeutlichen das Fokussierungsprinzip von Röntgenteleskopen, z.B. für Weitwinkeloptiken nach dem Lobster-Eye Prinzip. Auf Schautafeln werden Optiken verschiedener Typen von Teleskopen mit Begleittexten und zugehörigen Abbildungen erläutert sowie moderne Röntgenobservatorien wie CHANDRA, XMM-Newton und eROSITA übersichtlich dargestellt. Das neue Besucherexperiment soll nach seiner Realisierung junge Forscherinnen und Forscher für die faszinierende Welt der Röntgenoptik und der Röntgenastronomie begeistern. N2 - Poster KW - Optik KW - Museum KW - Röntgen KW - Astronomie KW - Deutsches Röntgen-Museum KW - Röntgenoptik KW - Experiment Y1 - 2024 UR - https://www.dgao-proceedings.de/abstract/abstract_only.php?id=3039 VL - 2024 IS - 125 SP - 1 EP - 1 PB - DGaO ER - TY - CHAP A1 - Ermilova, Elena A1 - Hertwig, Andreas A1 - Döhring, Thorsten A1 - Stanik, Eva A1 - Cotroneo, Vincenzo A1 - Gibertini, Eugenio T1 - Ellipsometrical characterization of poly-dopamine layers considered for technical applications T2 - Proceedings of SPIE N2 - Although the organic molecule dopamine (3,4-dihydroxyphenethylamine) is commonly known as the “hormone of happiness”, thin films of poly-dopamine also have interesting technical properties. When produced by dip coating, the self-organizing layers grow in a reproducible thickness of single or multiple molecule monolayers of a few nanometer thickness only. In this work, we introduce a method of determining the layer thickness of poly-dopamine on mirrors for astronomical X-ray telescopes. This work is based on spectroscopic ellipsometry measurements and involves the development of an optical model for the poly-dopamine layers including the dielectric function. Thereby the complex refractive index of the produced layers was determined, covering the range from the ultraviolet to the near infrared spectral region. These measurement results and the corresponding technical challenges are presented in this contribution. Furthermore, an outlook to potential technical applications of this interesting material is given and poly-dopamine layers will make scientist and engineers hopefully happy as an innovative and fascinating technical solution for the future. KW - dopamine KW - ellipsometry KW - refractive index KW - thin films KW - X-ray mirror KW - Dünne Schicht KW - Dopamin KW - Ellipsometrie Y1 - 2024 UR - https://doi.org/10.1117/12.3015281 U6 - https://doi.org/https://doi.org/10.1117/12.3015281 VL - 2024 IS - 13013 SP - 1301309-1 EP - 1301309-8 ER - TY - BOOK A1 - Schneider-Störmann, Ludger ED - Schneider-Störmann, Ludger T1 - Konflikte und Verhandlungsmanagement im Vertrieb N2 - „Never give without taking“ ist das Verhandlungsmotto von Ludger Schneider-Störmann. Verhandlun-gen in gesättigten Märkten mit hartem Wettbewerb sind konfliktreich. Der Autor beschreibt gängige Konflikttypen und erläutert alle Facetten für ein erfolgreiches Management von Online- und Face-to-Face-Verhandlungen. Zudem gibt er Anleitungen für eine perfekte Vorbereitung und Durchführung. Das Buch richtet sich an Studierende der Betriebswirtschaftslehre, des Wirtschaftsingenieurwesens sowie des Vertriebs und an alle Studierenden mit Interesse am Vertrieb. Es eignet sich auch hervorragend für die Praxis. KW - Konflikt KW - Verhandlungsführung KW - Vertrieb KW - Verhandlungstechnik KW - Konfliktmanagement KW - Konfliktmanagement KW - Verhandlungsmanagement KW - Persönlichkeitstypen KW - Buying Center KW - Konfliktlandkarte Y1 - 2024 SN - 9783825262679 PB - UVK Verlag CY - München ER - TY - GEN A1 - Stanik, Eva A1 - Döhring, Thorsten A1 - Zeising, Sebastian A1 - Meißner, Martin T1 - An astronomy event at Aschaffenburg University to attract future engineering students T2 - 18th INTEGRAL/BART Workshop N2 - In 2023 the German Federal Ministry of Education and Research (BMBF) and the German organization for science communication “Wissenschaft im Dialog” (German for: Science in dialogue) jointly proclaimed a "Science Year" with the motto “Our Universe”. One of the numerous events that have been supported thereby has been that of the project "Zirkus UNI-versum" (in English: "Circus UNI-verse"), which took place in summer 2023 at Aschaffenburg University of Applied Sciences. Two school classes from the local high school “Kronberg-Gymnasium” first experienced an interactive astronomy lecture including a planetarium star show in a tent. Another highlight was the rocket car race in front of the cafeteria and the exclusive launch of a water rocket on the campus green. After the collective countdown, it reached a height of around eighty meters and thus rose higher than all the trees and buildings on the campus site. For their own exploration of the night sky the pupils obtained small cardboard star maps to assemble themselves as a homework. On the summer evenings of the following school holidays, they certainly observed the sky with a different point of view and, above all, with expert knowledge. The event has given them interesting impressions of Aschaffenburg Technical University as an attractive local education facility. The project "Zirkus UNI-versum" – and other activities for schools – intend to stimulate the interest of pupils in STEM subjects and to attract future engineering students. N2 - Poster KW - astronomy event KW - MINT KW - engineering students KW - STEM KW - Astronomie KW - Vorlesung Y1 - 2024 VL - 2024 SP - 1 EP - 1 ER - TY - JOUR A1 - Döhring, Thorsten A1 - Stanik, Eva A1 - Zeising, Sebastian A1 - Meissner, Martin T1 - Astronomy events at Aschaffenburg University to attract future students JF - Acta Polytecnica N2 - In 2023, the German Federal Ministry of Education and Research and the German organisation for science communication “Wissenschaft im Dialog” jointly proclaimed a “Science Year 2023” in Germany with the motto “Our Universe”. One of the numerous events that have been supported has been that of the project “Zirkus UNI-versum”, which took place in summer 2023 at Aschaffenburg University of Applied Sciences. This project, and other activities for schools, intend to stimulate the interest of pupils in STEM subjects and to attract future engineering students. KW - astronomy KW - education KW - STEM KW - planetarium KW - rocket propulsion KW - Astronomie KW - Schüler KW - MINT-Fächer Y1 - 2025 UR - https://dspace.cvut.cz/handle/10467/121689 VL - 2025 IS - 65 (1) SP - 1 EP - 6 ER - TY - CHAP A1 - Stanik, Eva A1 - Döhring, Thorsten A1 - Pregler, Jan A1 - Kätker, Anna A1 - Busch, Uwe A1 - Friedrich, Peter T1 - A visitor experiment on astronomical X-ray optics for the "Deutsches Röntgen-Museum" T2 - AXRO 2024 - 15th International Conference on Astronomical X-Ray Optics N2 - The “Deutsches Röntgenmuseum” in Remscheid is the unique institution worldwide that researches and documents the life and work of the first Nobel Prize winner, Wilhelm Conrad Röntgen, and the effects of his discovery of X-rays. As an integral part of the museum, the RöLab laboratory offers visitors the opportunity to gain practical experience in X-rays, optics and technology through own experiments. As part of a joint development project, students from Aschaffenburg University of Applied Sciences are currently designing a visitor experiment on astronomical X-ray optics for the museum laboratory. An optical set-up with visible light illustrate the focusing principle of X-ray telescopes, e.g. for wide-angle optics based on the lobster-eye principle. Display boards explain the optics of various types of telescopes with accompanying text and corresponding illustrations. Modern X-ray observatories such as CHANDRA, XMM-Newton and eROSITA are presented clearly. Once implemented, the new visitor experiment inside the “Deutsches Röntgenmuseum” intend to inspire young researchers for the fascinating world of X-ray optics and X-ray astronomy. KW - X-ray astronomy KW - X-ray optics KW - X-ray telescope KW - Deutsches Röntgen-Museum KW - Deutsches Röntgen-Museum KW - Röntgen, Wilhelm Conrad, 1845-1923 KW - Röntgenstrahlung Y1 - 2024 VL - 2024 SP - 1 EP - 1 ER - TY - CHAP A1 - Döhring, Thorsten A1 - Stanik, Eva A1 - Pregler, Jan A1 - Kätker, Anna A1 - Busch, Uwe A1 - Friedrich, Peter T1 - Konzeption eines Astronomie-Besucherexperiments für das Deutsche Röntgen Museum T2 - Bayerischer Tag für gute Lehre N2 - Das Deutsche Röntgen Museum in Remscheid ist eine weltweit einzigartige Institution, die das Leben und Werk des ersten Physik Nobelpreisträgers Wilhelm Conrad Röntgen und die Auswirkungen seiner Entdeckung der Röntgenstrahlung erforscht und dokumentiert Als integraler Bestandteil des Museums bietet das Museumslabor RöLab die Möglichkeit, durch eigene Experimente praktische Erfahrungen zu verschiedenen Themen rund um Röntgenstrahlung, Optik und Technik zu sammeln Im Rahmen eines gemeinsamen Entwicklungsprojekts konzipieren Studierende der TH Aschaffenburg derzeit ein Besucherexperiment zur astronomischen Röntgenoptik für das Museumslabor Das neue Besucherexperiment soll nach seiner Realisierung junge Forscherinnen und Forscher für die faszinierende Welt der Röntgenoptik und der Röntgenastronomie begeistern. KW - Exponat KW - Röntgen KW - Astronomie KW - Museum KW - Deutsches Röntgen-Museum KW - Experiment KW - Röntgenoptik KW - Röntgenastronomie Y1 - 2025 UR - https://www.uni-wuerzburg.de/lehre/aktuelles/tag-fuer-gute-lehre-2025/ VL - 2025 SP - 1 EP - 1 PB - Universität Würzburg ER - TY - CHAP A1 - Döhring, Thorsten A1 - Krieger, Jochen A1 - Stanik, Eva T1 - Praxisschock im Studium - die Erstellung komplexer Angebote für Satellitenkomponenten T2 - Bayerischer Tag für gute Lehre N2 - Die Lehrveranstaltung „Projektstudie" im Rahmen des Studiengangs “Internationales Technisches Vertriebsmanagement“ verbindet Elemente der Ingenieurwissenschaften und der Betriebswirtschaftslehre mit einem realistischen Vertriebsprojekt, hier der Erstellung eines komplexen Angebotes für Satellitenkomponenten. Begleitend zu der Teamarbeit am praktischen Vertriebsprojekt werden Lehrsequenzen theoretischer Natur durchgeführt, die dem nachhaltigen Verständnis dienen und auf die Schwerpunktthemen vorbereiten. Die hohe Qualität der erstellten Angebotsunterlagen zeigt, dass die angestrebten Lernziele erreicht wurden. Der Praxisschock einer komplexen Angebotserstellung erfolgt für die Studierenden somit bereits im Studium unter Anleitung eines auf diesem Gebiet berufserfahrenen Professors und nicht erst während der Probezeit in einer ersten Vertriebsposition. KW - Satellitentechnik KW - Vertrieb KW - Projektmanagement KW - Investitionsgütermarketing KW - Satellitentechnik Y1 - 2025 UR - https://www.uni-wuerzburg.de/lehre/aktuelles/tag-fuer-gute-lehre-2025/ VL - 2025 SP - 1 EP - 1 PB - Universität Würzburg ER - TY - CHAP A1 - Stanik, Eva A1 - Döhring, Thorsten A1 - Krivanekova, Lucia A1 - Meißner, Martin T1 - „Zirkus UNI-versum” - ein Astronomie-Event für Schulklassen T2 - Bayerischer Tag für gute Lehre N2 - Im “Wissenschaftsjahr 2023 – Unser Universum”, einer gemeinsamen Initiative des Bundesministeriums für Bildung und Forschung (BMBF) und Wissenschaft im Dialog (WiD), wurden zahlreiche Projekte in ganz Deutschland gefördert. Eines dieser Projekte war der “Zirkus UNI-versum”, der an der Technischen Hochschule Aschaffenburg stattfand. Zielgruppe waren Schulklassen von benachbarten Schulen, die eingeladen wurden, bei einem Besuch auf dem Hochschul-Campus spielerisch Wissen über Astronomie und Raumfahrt zu sammeln. Gleichzeitig sollen mit dem Projekt (und anderen „Erlebnis-Bausteinen“ unserer Schulprojekte) die Schülerinnen und Schüler für MINT-Fächer begeistert und zukünftige Studierende für technische Studiengänge gewonnen werden. KW - Astronomie KW - MINT KW - Planetarium KW - Astronomie KW - Raumfahrt KW - Schülerversuch Y1 - 2025 UR - https://www.uni-wuerzburg.de/lehre/aktuelles/tag-fuer-gute-lehre-2025/ VL - 2025 SP - 1 EP - 1 PB - Universität Würzburg ER - TY - CHAP A1 - Khropost, Diana A1 - Riethmüller, Franziska A1 - Stanik, Eva A1 - Döhring, Thorsten A1 - Hertwig, Andreas A1 - Huelague, Deniz T1 - Polydopamine – a bionic material and its potential applications for batteries T2 - MaterialsWeek 2025 – Book of Abstracts N2 - Polydopamine (PDA) recently came into focus as an innovative material for applications in various technical fields, especially in the energy field it is considered for batteries as well as for supercapacitors. It is a very strong glue that sticks on almost everything, even under water: In nature, PDA is found in the byssal thread cuticles of mussels. The wet-resistant adhesion ability of PDA can be used in the treatment of separator membranes in batteries, but furthermore PDA is also considered as an electrode material for batteries. We have investigated thin layers of poly-dopamine with different methods including ellipsometry, tactile measurements of the layer thickness and in situ absorption measurements during the polymerization process. KW - polydopamine KW - PDA KW - bionic material KW - adhesion KW - absorption KW - Iridium KW - Katalysator KW - Wasserstoffenergietechnik Y1 - 2025 SN - 978-3-88355-446-4 SP - 67 EP - 67 PB - Deutsche Gesellschaft für Materialkunde e.V. (DGM) CY - Sankt Augustin ER - TY - CHAP A1 - Rivolta, Giacomo A1 - Basso, Stefano A1 - Civitani, Marta Maria A1 - Cotroneo, Vincenzo A1 - Döhring, Thorsten A1 - Michler, Willy-Leopold A1 - Pareschi, Giovanni A1 - Spiga, Daniele A1 - Stollenwerk, Manfred T1 - Upgrade of a laboratory X-ray diffractometer to extend its operating range towards soft energies T2 - Proceedings of SPIE N2 - The optical properties of X-ray mirror samples are commonly measured using diffractometers based on laboratory sources; like the Bede D1 diffractometer operating at INAF-OAB. This instrument can generate a collimated X-ray beam up to 60 keV, even though the most interesting energy region for x-ray astronomy applications is usually below 10 keV. In the softest part of this range (below 6 keV), high X-ray absorption in air hinders a full and precise characterization of optical components. In this work, we present an upgrade of the Bede D1 diffractometer that extends the operative range of the instrument below 6 keV; this is done by maximizing the flux at lowest energies and by reducing absorption by means of a helium-rich atmosphere. The upgraded instrument will be used for the tests of X-ray mirrors with innovative soft X-ray coatings, with potential application to the next generation X-ray telescopes (such as ATHENA and eXTP). KW - X-ray KW - mirror KW - reflectivity KW - refractometer KW - ATHENA KW - Röntgenspiegel KW - Diffraktometer Y1 - 2022 UR - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12181/121814S/Upgrade-of-a-laboratory-x-ray-diffractometer-to-extend-its/10.1117/12.2629940.short U6 - https://doi.org/doi: 10.1117/12.2629940 SN - 0277-786X VL - 2022 IS - 12181 SP - 121814S-1 EP - 121814s-7 PB - SPIE ER - TY - CHAP A1 - Stanik, Eva A1 - Pregler, Jan A1 - Döhring, Thorsten A1 - Kätker, Anna A1 - Busch, Uwe A1 - Friedrich, Peter ED - Hudec, René ED - Pina, Ladislav T1 - A visitor experiment on astronomical x-ray optics for the “Deutsches Röntgenmuseum” T2 - EUV and X-ray Optics: Synergy between Laboratory and Space IX N2 - The “Deutsches Röntgen-Museum” in Remscheid (Germany) is the unique institution worldwide that researches and documents the life and work of the first Nobel Prize winner in physics, Wilhelm Conrad Röntgen, and the effects of his discovery of X-rays. As an integral part of the museum, the RöLab laboratory offers visitors the opportunity to gain practical experience in X-rays, optics and technology through own experiments. As part of a joint development project, students from Aschaffenburg University of Applied Sciences are currently designing a visitor experiment on astronomical X-ray optics for the museum´s Röntgen laboratory. An optical set-up with visible light illustrates the focusing principle of X-ray telescopes, e. g. for wide-angle optics based on the lobster-eye principle. Display boards explain the optics of various types of telescopes with accompanying text and corresponding illustrations. Modern X-ray observatories such as CHANDRA, XMM-Newton and eROSITA are presented clearly. Once implemented, the new visitor experiment inside the “Deutsches Röntgen-Museum” aims to inspire young researchers with enthusiasm for the fascinating world of X-ray optics and X-ray astronomy. KW - X-ray KW - astronomy KW - STEM KW - museum KW - Röntgen KW - Deutsches Röntgen-Museum KW - Röntgenoptik Y1 - 2025 U6 - https://doi.org/10.1117/12.3056291 VL - 2025 IS - 13531 SP - 135310M-1 EP - 135310M-7 PB - SPIE ER - TY - CHAP A1 - Hudec, Rene A1 - Stieglitz, Veronika A1 - Döhring, Thorsten A1 - Friedrich, Peter A1 - Burwitz, Vadim T1 - Novel X-ray optics developed within the AHEAD2020 project N2 - We present a summary of our contribution to the EU Horizon 2020 project AHEAD2020, with emphasis on the X-ray optics work package. The Czech Technical University – together with other collaborating institutes - studied innovative Lobster Eye (LE) and Kirkpatrick-Baez (KB) X-ray modules, based on the Multi Foil Optics technology (MFO). In addition, two major events were organized, namely a students workshop in December 2023 and a summer school in May 2024. The KB optics represents a promising and cost effective alternative to the currently used Wolter I telescopes. The LE X-ray optics, based on the Schmidt design, has a wide field of view (FOV) with a short focal length, making it suitable for CubeSat application. Thereby the 2D LE optics consist of two orthogonal sub-modules of flat smooth reflecting foils, each sub-modules focuses in one direction. The advantage of such optics is that it preserves the angular resolution throughout the FOV even for off-axis points, as demonstrated by simulations and measurements. There was a collaboration with Aschaffenburg University in design, development, and testing of the double LE module HORUS, comparing different reflecting coatings. KW - Horizon2020 KW - astronomy KW - telescope KW - X-ray KW - Röntgenoptik KW - Beschichtung Y1 - 2025 UR - https://www.dgao-proceedings.de/abstract/abstract_only.php?id=3236 SP - 1 EP - 1 PB - DGaO ER - TY - JOUR A1 - Kroneberger, Monika A1 - Stanik, Eva A1 - Döhring, Thorsten ED - El Gawhary, O. ED - Witte, S. ED - Moreno, I. T1 - Parameter optimization for the infrared curing process of powder coatings using the NAPUBEST prototype and optical simulations JF - EPJ Web of Conferences N2 - In line with the energy transition, it is desirable to replace fossil fuels in the curing process of industrial powder coatings. Infrared heating is the considered method here. IR-emitter arrangement in the reflective heating chamber, their geometry and the dwell time of the components are crucial for a successful and efficient process. Process optimization has to consider the optical parameter variation of the powder coating during the procedure. Measurements in the NAPUBEST prototype are compared with optical simulations of the setup to get the simulation parameters in agreement with reality and to provide a foundation for the layout of industrial processes. KW - infrared KW - powder coating KW - sustainability KW - optic design KW - curing KW - Pulverlack KW - Aushärtung KW - Infrarot Y1 - 2025 U6 - https://doi.org/https://doi.org/10.1051/epjconf/202533503035 SN - 2100-014X VL - 335 SP - 1 EP - 2 PB - EDP Sciences ER - TY - CHAP A1 - Hudec, Rene A1 - Stieglitz, Veronika A1 - Döhring, Thorsten A1 - Friedrich, Peter A1 - Burwitz, Vadim T1 - Novel X-ray optics developed within the AHEAD2020 project T2 - DGaO-Proceedings N2 - We present a summary of our contribution to the EU Horizon 2020 project AHEAD2020, with emphasis on the X-ray optics work package. The Czech Technical University – together with other collaborating institutes – studied innovative Lobster Eye and Kirkpatrick-Baez X-ray modules, based on the Multi Foil Optics technology. In addition, a student’s workshop in December 2023 and a summer school in May 2024 were organized within the project. KW - X-ray KW - optics KW - telescope KW - Lobster Eye KW - mirror KW - Röntgenoptik Y1 - 2025 UR - https://www.dgao-proceedings.de/download/126/126_p5.pdf SN - 1614-8436 VL - 2025 IS - 126 SP - 1 EP - 2 PB - DGaO ER - TY - GEN A1 - Döhring, Thorsten A1 - Pregler, Jan A1 - Krivanekova, Lucia A1 - Hildenbrand, Georg T1 - Strahlungsmessungen beim Erstflug des Stratosphärenballon-Experiments ASTRABAX T2 - DGaO-Proceedings N2 - Mit dem Aschaffenburger Stratosphären-Ballon-Experiment („ASTRABAX“) werden Experimente zu Material- und Biowissenschaften unter extremer Strahlungsexposition in großer Höhe durchgeführt. Der erste von drei geplanten Ballonflügen startete Mitte Oktober 2024 im norddeutschen Bad Pyrmont und erreichte eine Flughöhe von fast 35 km. Der Schwerpunkt der physikalischen Experimente lag auf der Vermessung des UV-C-Spektralbereichs mit einem Miniatur-UV-VIS-Spektrometer und der Strahlungsdosimetrie mit einem Geigerzähler. In einem zweiten Satz von Experimenten wurde die Wirkung der Bestrahlung auf Polydopaminproben untersucht, welche derzeit für Beschichtungen von astronomischen Röntgenspiegel entwickelt werden. Die Ballongondel enthielt auch Proben biologischer Zellen, die hier gleichzeitig einer niedrig dosierten Strahlung von hochenergetischen Partikeln, Gammastrahlen und UV-Strahlung ausgesetzt wurden. Experimente unter solchen natürlichen stratosphärischen Bedingungen sind für atmosphärische Höhenflüge, bemannte Raumfahrtmissionen, vergleichbare Expositionen bei anderen Objekten des Sonnensystems und die strahlenbiologische Forschung von Bedeutung. N2 - Poster KW - Stratosphärenballon KW - kosmische Strahlung KW - ultraviolette Strahlung KW - Spektrometer KW - Stratosphären-Ballon KW - Kosmische Strahlung KW - Röntgenspiegel Y1 - 2024 UR - https://www.dgao-proceedings.de/abstract/abstract_only.php?id=3181 VL - 2025 IS - 126 SP - 1 EP - 2 PB - DGaO ER - TY - CHAP A1 - Stanik, Eva A1 - Pregler, Jan A1 - Döhring, Thorsten A1 - Kätker, Anna A1 - Busch, Uwe A1 - Friedrich, Peter T1 - A visitor experiment on astronomical X-ray optics for the “Deutsches Röntgen Museum” T2 - Proceedings of SPIE N2 - The "Deutsches Röntgen Museum” in Remscheid is the unique institution worldwide that researches and documents the life and work of the first Nobel Prize winner in physics, Wilhelm Conrad Röntgen and the effects of his discovery of X rays. As an integral part of the museum, the RöLab laboratory offers visitors the opportunity to gain practical experience in X rays, optics and technology through own experiments. As part of a joint development project, students from Aschaffenburg University of Applied Sciences are currently designing a visitor experiment on astronomical X ray optics for the museum laboratory. N2 - Poster KW - X-ray KW - astronomy KW - STEM KW - education KW - museum KW - Deutsches Röntgen-Museum KW - Röntgenoptik KW - Experiment Y1 - 2025 UR - https://spie.org/optics-optoelectronics/presentation/A-visitor-experiment-on-astronomical-x-ray-optics-for-the/13531-20 VL - 2025 IS - 13531 SP - 1 EP - 1 PB - SPIE ER - TY - CHAP A1 - Kroneberger, Monika A1 - Stanik, Eva A1 - Döhring, Thorsten T1 - Optik-Simulation für die Energiewende am Beispiel eines industriellen Infrarot-Heizofens T2 - DGaO-Proceedings N2 - Um fossile Brennstoffe in der industriellen Pulverlackbeschichtung zu ersetzen, kann Infrarottrocknung eingesetzt werden. Für komplexe Geometrien, bei denen eine Verschattung die Effizienz der Infrarot-Aushärtung mindert, sind die Anordnung der Infrarotstrahler in der reflektierenden Heizkammer, deren Geometrie und die Verweilzeit der Bauteile die Schlüssel für erfolgreiche Prozesse. KW - Infrarotstrahlung KW - Pulverlack KW - Heizofen KW - Optik-Simulation Y1 - 2025 UR - https://www.dgao-proceedings.de/download/126/126_p23.pdf SN - 1614-8436 VL - 2025 IS - 126 SP - 1 EP - 2 PB - DGaO ER - TY - CHAP A1 - Döhring, Thorsten A1 - Pregler, Jan A1 - Krivanekova, Lucia A1 - Hildenbrand, Georg T1 - Strahlungsmessungen beim Erstflug des Stratosphärenballon-Experiments ASTRABAX T2 - DGaO-Proceedings N2 - Der erste von drei geplanten Ballonflügen beim Aschaffenburger Stratosphären- Ballon-Experiment („ASTRABAX“) startete im Oktober 2024 in Bad Pyrmont und erreichte eine Flughöhe von fast 35 km. Der Schwerpunkt der physikalischen Experimente lag auf der Vermessung des UV-C-Spektralbereichs mit einem Miniatur-Spektrometer und der Strahlungsdosimetrie mit einem Geigerzähler. KW - Stratosphärenballon KW - kosmische Strahlung KW - Ultraviolet KW - Atmosphäre Y1 - 2025 UR - https://www.dgao-proceedings.de/download/126/126_p6.pdf SN - 1614-8436 VL - 2025 IS - 126 SP - 1 EP - 2 PB - DGaO ER - TY - CHAP A1 - Stanik, Eva A1 - Döhring, Thorsten A1 - Rees, Paul A1 - Kroneberger, Monika A1 - Stanik, Martin T1 - Infrared heating for a sustainable powder coating technology T2 - DGaO-Proceedings N2 - Industrial processes need to be transformed into sustainable alternatives. For powder coatings, which traditionally rely on gas or oil heating systems, infrared radiation can deliver the required process heat. The aim of the NAPUBEST project is to evaluate the possibilities of infrared radiation in the powder coating process. In our laboratory, we realized a prototype of an IR oven for test measurements. KW - infrared KW - powder coating KW - sustainability KW - curing Y1 - 2025 UR - https://www.dgao-proceedings.de/download/126/126_p24.pdf SN - 1614-8436 VL - 2025 IS - 126 SP - 1 EP - 2 PB - DGaO ER - TY - GEN A1 - Kroneberger, Monika A1 - Stanik, Eva A1 - Döhring, Thorsten T1 - Optik-Simulation für die Energiewende am Beispiel eines industriellen Infrarot-Heizofens T2 - DGaO Proceedings, 126. Tagung N2 - Im Rahmen der Energiewende sollen fossile Brennstoffe auch im Heizofen einer industriellen Pulverlackbeschichtung ersetzt werden. In der Stahlindustrie ist die Infrarottrocknung von ebenen Stahlband-Oberflächen ein bereits seit Jahren bewährtes Verfahren. Pulverlack-Beschichtungen werden jedoch oft auf komplexe Geometrien aufgetragen, bei denen eine Verschattung die Effizienz der Infrarot-Aushärtung mindert. Die Anordnung der Infrarotstrahler in der reflektierenden Heizkammer, deren Geometrie und die Verweilzeit der Bauteile sind daher die Schlüssel für erfolgreiche Prozesse. Zur Verfahrensoptimierung müssen zudem die optischen Parameter der Pulverlacke während des Prozesses bekannt sein, um die nötige Strahlungsleistung an Bauteile und unterschiedliche Lacke anpassen zu können. Messungen in der NAPUBEST-Prototypanlage werden daher mit optischen Simulationen des Aufbaus abgeglichen, um die Simulationsparameter an die Messergebnisse anzupassen und damit die Grundlage für die Auslegung von industriellen Prozessen zu gewährleisten. Hierbei wird Infrarotstrahlung mehrerer Wellenlängen berücksichtigt, um in unterschiedlichen Ofenzonen benötigte Aufheiz- und Haltephasen zu verwirklichen. N2 - Poster KW - Infrarotstrahlung KW - Optiksimulation KW - Pulverlack KW - Heizofen KW - Infrarotheizung Y1 - 2025 UR - https://www.dgao-proceedings.de/abstract/abstract_only.php?id=3151 SP - 1 EP - 1 PB - DGaO ER - TY - JOUR A1 - Cotroneo, Vicenzo A1 - Basso, Stefano A1 - Civitani, Marta A1 - Döhring, Thorsten A1 - Gibertini, Eugenio A1 - Iovenitti, Simone A1 - Magagnin, Luca A1 - Pareschi, Giovanni A1 - Sironi, Giorgia A1 - Spiga, Daniele A1 - Tagliaferri, Gianpiero A1 - Valsecchi, Giuseppe T1 - Polydopamine Coatings for Enhanced Soft X-Ray Reflectivity in Space Telescope Mirrors JF - ECS Meeting Abstracts N2 - It has been known for years that sputtered low-density coatings deposited under vacuum (e.g. carbon or B4C), applied on top of high-density metallic coatings, can enhance their reflectivity in the soft X-ray band (below ~5 keV). However, the physical deposition techniques, as vacuum-based sputtering, to produce B4C or amorphous coatings are usually difficult and highly costing. Polydopamine (PDA), a bio-polymer inspired by mussels, exhibits exceptional surface binding and it’s nowadays a popular material used in surface engineering for multipurpose applications (Ryu, 2018). PDA thin film are typically produced in aqueous solution by the oxidative polymerization of dopamine, commonly known as one of the “hormones of happiness”, resulting in nanometric PDA coating with tunable thickness and morphology. In recent years, we have introduced and investigated a novel and scalable strategy for enhancing the soft X-ray reflectivity of telescope mirrors used in space missions based on dip-liquid deposition of PDA thin films as carbon-rich coating (carbon 62.7 %wt. in DA monomer) (Cotroneo, 2022). This method is very versatile and quick and offers a low-cost alternative to conventional carbon-like coating, while maintaining or even exceeding performance in the energy range below ~5 keV. Experimental tests across three X-ray beamlines—including two synchrotron facilities—demonstrated consistent reflectivity enhancement, especially in the 1–4 keV energy range and with a good match between theoretical predictions and experimental reflectivity profiles. When applied over traditional coatings (e.g Au, Ir), the dip-liquid overcoats produced improvements of up to 100% in effective area for some specific X-ray bands compared to conventional single-metal films. These results are particularly compelling for nickel-replicated mirrors with gold coatings, a common architecture in cost-sensitive space missions. Bibliography Cotroneo, V., 2022. Dopamine dip-liquid overcoatings for soft x-ray reflectivity enhancement. SPIE Proceedings. Ryu, J. H., 2018. Polydopamine Surface Chemistry: A Decade of Discovery. ACS Applied Materials & Interfaces. KW - Röntgenteleskop KW - Röntgenspiegel Y1 - 2025 U6 - https://doi.org/10.1149/MA2025-02673247mtgabs SN - 2151-2043 VL - MA2025-02 IS - 67 SP - 3247 EP - 3247 PB - The Electrochemical Society ER - TY - CHAP A1 - Busch, Uwe A1 - Michels, Marcel A1 - Kätker, Anna A1 - Döhring, Thorsten A1 - Stanik, Eva T1 - Historical X ray images selected for UNESCO's Memory of the World Register N2 - The Deutsches Röntgen Museum” in Remscheid (Germany) is the institution that uniquely and comprehensively explores and documents the life and work of Wilhelm Conrad Röntgen and the impact of his discovery. It preserves a collection of X- ray images taken by W. C. Röntgen during his research. Among them are three images of Röntgen's own hands and those of his wife, Anna Bertha. Three more images show Röntgen's hunting rifle, which he was able to analyze internally by using the new X ray technology. These two series of historical pictures from the years 1895 and 1896 provide an outstanding illustration of the scientific revolution that Röntgen's discovery triggered especially in medicine and in materials science. Therefore, his discovery of X-rays ranks among the most groundbreaking scientific achievements of modern times. In April 2025 those very first recorded X ray photographs were added on the UNESCO Memory of the World Register. The corresponding public ceremony took place on September 10 2025 in Röntgen ´ s birth town Remscheid. Representatives of the German UNESCO Commission, of politics, and of the German Röntgen Society were present UNESCO is thus honoring not only Röntgen's groundbreaking discovery of X rays, but also the cultural, scientific, and technological implications of his early radiographs. The "Deutsches Röntgen Museum" presents six famous historical X-ray documents to the public, which are now part of UNESCO ´ s Memory of the World Register. KW - Wilhelm Conrad Röntgen KW - UNESCO KW - X-rays KW - Nobel Prize KW - museum KW - Deutsches Röntgen-Museum KW - Röntgenbild Y1 - 2025 VL - 16 SP - 1 EP - 1 PB - 16th International Conference on Astronomical X-ray Optics CY - Prag ER - TY - CHAP A1 - Döhring, Thorsten A1 - Krivanekova, Lucia A1 - Hildenbrand, Georg T1 - ASTRABAX – Scientific results of two stratospheric balloon flights T2 - 18th Pico- and Nanosatellite Workshop 2025, Abstracts Book N2 - The ASTRABAX experiment ("Aschaffenburg Stratospheric Balloon Experiment") uses a multimodal platform to study radiation exposures in the upper atmosphere. We present a modular approach to accommodate the numerous setups under the weight restriction of light unmanned free stratospheric balloon. The compartmental setup allows flexibility to address current research questions with low expenditure in costs, manpower and technology expertise. Its easy implementation is suitable for educational purposes of students in the fields of astronomy, astrobiology, and material research. Recently, two stratospheric balloons were flown to test the feasibility and connectivity of different building blocks in a temperature-controlled gondola, and to characterize the stratospheric radiation environment.The focus of the physical experiments is the observation of the UV-C spectral region using miniature UV-VIS spectrometers, and cosmic ray dosimetry with a Geiger counter. A second set of experiments assesses the effects of irradiation on polydopamine coatings intended for the application in space-born X-ray telescopes. The platform also contains samples of biological cells that are simultaneously exposed to low-dose radiation of different compositions of particle, X-ray and UV radiation. Post-flight nanoscopic measurements aim to examine changes in the spatial chromatin organization playing a crucial role in DNA-repair mechanisms. Investigations in such natural environment are of importance for high altitude atmospheric as well as space flights, for comparable exposures on other objects of the solar system and for astrobiology. KW - cosmic ray KW - radiation KW - stratospheric balloon KW - atmosphere KW - UVC KW - Stratosphären-Ballon KW - Kosmische Strahlung KW - Röntgenspiegel Y1 - 2025 VL - 2025 SP - 17 EP - 17 PB - Julius-Maximilians-Universität Würzburg CY - Würzburg ER - TY - CHAP A1 - Hudec, Rene A1 - Döhring, Thorsten T1 - Astrophysical and scientific payloads for CubeSats T2 - 18th Pico- and Nanosatellite Workshop 2025, Abstracts Book N2 - For scientific and commercial applications, CubeSats enable cost-effective missions and significantly reduce the time between mission concept and launch compared to classical large satellites. Since 2000, there has been an accelerating increase in CubeSat launches, which in turn is expected to drive up the demand for dedicated optical instruments, especially in commercially relevant areas like high-resolution optics for earth observation. We present some studies and ideas of application of CubeSats mainly in the field of astronomy and astrophysics elaborated and studied at the Czech Technical University in Prague in collaboration with Aschaffenburg University of Applied Sciences. These includes single CubeSats as well as tandem CubeSat constellations. These miniature satellites can carry miniature scientific payloads for high-energy observations of both astrophysical objects as well as targets in high earth atmosphere. The examples include miniature X-ray and UV telescopes monitors and cameras, but also optical and NIR payloads. Due to the recent progress in satellite control engineering, tandem flight arrangements of mini-satellites are currently in discussion and under consideration for future space missions. CubeSat technologies offer an interesting possibility for space-born telescope payloads based on this approach. In such scenario, two small satellites will fly at a constant distance of a few meters up to 100 meters. Thereby, the front satellite will carry the telescope optics and the second satellite the detector system. The tandem flight arrangements are crucial for design of space telescopes with larger focal distances exceeding the typical sizes of small satellites. KW - satellite KW - CubeSat KW - payload KW - tandem flight KW - Kleinsatellit Y1 - 2025 VL - 2025 SP - 12 EP - 12 PB - Julius-Maximilians-Universität Würzburg CY - Würzburg ER - TY - CHAP A1 - Döhring, Thorsten A1 - Hudec, Rene T1 - One decade of joint Bavarian-Czech projects on astronomical X-ray optics N2 - Since ten years, Aschaffenburg University of Applied Sciences and the Czech technical university in Prague are now cooperating. During the recent decade, eleven joint projects have been executed, mainly targeting the development of astronomical X-ray optics. The bilateral cooperation also included the exchange of PhD students and scientists, cost compensation for conference participations, and the sponsoring of scientific conferences (AXRO and IBWS). The scientific output up to date are more than twenty joint publications and many individual conference contributions of the project partners in addition. The Bavarian-Czech Academic Agency (BTHA) has funded all of these projects. It is the goal of the Bavarian-Czech Academic Agency to support the academic collaboration in research and education and to contribute to an increased cooperation of the two neighbored countries Bavaria and Czech Republic in general. We will give a review on one decade of our Bavarian-Czech cooperation and on the scientific results of our joint projects on astronomical X-ray optics. KW - X-ray KW - optics KW - astronomy KW - AXRO KW - IBWS KW - Röntgenoptik KW - Röntgenastronomie KW - Bayern KW - Tschechien Y1 - 2025 VL - 2025 IS - 16 SP - 1 EP - 1 PB - 16th International Conference on Astronomical X-ray Optics CY - Prag ER - TY - CHAP A1 - Khropost, Diana A1 - Riethmüller, Franziska A1 - Döhring, Thorsten A1 - Flachs, Dennis A1 - Hülagü, Deniz A1 - Hertwig, Andreas A1 - Cotroneo, Vincenzo A1 - Gibertini, Eugenio ED - Hudec, René ED - Pina, Ladislav T1 - Polydopamine: a bio-inspired polymer for X-ray mirror coatings and other technical applications T2 - EUV and X-ray Optics: Synergy between Laboratory and Space IX N2 - Although the organic molecule dopamine (3,4-dihydroxyphenethylamine) is commonly known as one of the “hormones of happiness”, thin polymer films of polydopamine (PDA) also have interesting technical properties. PDA is a very strong glue that sticks on almost everything, even under water. In nature, PDA is found in the byssal thread cuticles of mussels. When produced by dip-coating, the self-organizing PDA layers grow in a reproducible thickness of single or multiple molecule monolayers of a few nanometres thickness only. Here we present an optimized preparation regime as derived from polymerization analysis through absorption spectroscopy. One application is the use of thin PDA overcoatings to increase the soft X-ray reflectivity of astronomical X-ray mirrors. Furthermore, we give an outlook to other technical applications for this interesting material, presenting this bio-inspired organic polymer as an innovative technical solution for the future, with applications such as PDA-based super-capacitors and its promising role in enhancing separator materials for batteries. KW - polydopamin KW - ellipsometry KW - X-ray KW - battery KW - Röntgenspiegel KW - Beschichtung Y1 - 2025 U6 - https://doi.org/10.1117/12.3056298 VL - 2025 IS - 13531 SP - 135310H-1 EP - 135310H-11 PB - SPIE ER -