Refine
Labor/Institute
Keywords
- Röntgenteleskop (11)
- X-ray (9)
- Iridium (7)
- CubeSat (6)
- Spiegelteleskop (6)
- telescope (6)
- Kleinsatellit (5)
- Röntgenspiegel (5)
- iridium (5)
- Astronomie (4)
Document Type
- Conference Proceeding (13)
- Other (7)
- Article (3)
Reviewed
- nein (1)
In the years 2016 to 2018 the Bavarian-Czech Academic Agency (BTHA) funded in summary four bilateral projects between
Aschaffenburg University and CVUT Prague: JEUMICO, TRILAMICO, JODEXRA, and AXROCO. The effective combination
of equipment, manpower, and know-how of both partners resulted in the development of stress-compensated iridium
coatings for astronomical X-ray mirrors. The findings have been published at scientific conferences and in joint papers. This
poster gives a review on the social , political and educational aspects of the collaborations in form of a photo documentation.
The recent progress in cubesat technologies allows scientific payloads for these minisatellites to be considered. We will discuss the possible miniature X/EUV and UV telescopes and monitors as potential minisats payloads. The advanced electronics image detectors allows the size of the optics to be miniaturized, still providing valuable scientific results.
In December 2017 the two projects JEUMICO (an acronym for
Joint European Mirror Cooperation) and TRILAMICO (standing for Trilateral
Mirror Collaboration) are ending. Different aspects of this Bavarian-Czech
collaboration between Aschaffenburg University and the Czech Technical University
in Prague are discussed. The multiple dimensions of this cooperation
are scientific achievements, public relation measures, internationalization of
education, financial aspects, inter-cultural communication, and also the actual
political situation within Europe.
Das Projekt JEUMICO wird vom Projektträger BAYHOST im Rahmen eines
Programms für bilaterale wissenschaftliche Projekte zwischen Tschechien und
Bayern gefördert. Inhaltlich werden von der Hochschule Aschaffenburg und der
Technischen Universität Prag hier gemeinsam Röntgenoptiken für ein geplantes
astronomisches Experiment an Bord einer NASA-Höhenrakete entwickelt.
We present optic designs based on biomimetic, namely technical applications of
animal eyes principles (here: Lobster Eyes) for the special application of wide
field X-ray imaging. Thereby we show and discuss some experimental results
and correlate them with simulations. Preliminary results of an ongoing study on
other strange animal mirror eyes with potential scientific and technical
applications are also discussed. Some of them are based on the principle of
multilayer multi-mirror active optics arrangements. The Lobster Eye X-ray optics
needs special reflective coatings for a better performance, which are currently
developed within the Bavarian-Czech cooperation project JEUMICO.
Within the project JEUMICO, an acronym for Joint European
Mirror Competence, the Aschaffenburg University of Applied Sciences and the
Czech Technical University in Prague started a collaboration to develop mirrors
for X-ray telescopes. Corresponding mirror segments use substrates of
at
silicon wafers which are coated with thin iridium lms, as this material is
promising high re
ectivity in the X-ray range of interest. The sputtering parameters
are optimized in the context of the expected re
ectivity of the coated
X-ray mirrors. In near future measurements of the assembled mirror modules
optical performances are planned at an X-ray test facility.
This paper focuses on a theoretical background that motivated
the experimental campaign of multiple layer coatings of X-ray mirrors, and
the first results of the testing of the prepared samples. Simulations of the use
of different overcoats were performed in order to improve the reflectivity of
thin iridium coatings designed for X-ray optics effective in the energy up to
10 keV. Samples based on these simulations were prepared and are being tested
for the properties that influence the X-ray optical performance, such as layer
homogeneity, density and surface micro-roughness. Further the topic of the
coating stress was addressed, as it is an issue in case of thin, lightweight X-ray
mirrors and affects the time stability of layers. The discussion and preliminary
results conclude our contribution.