Upgrade of a laboratory X-ray diffractometer to extend its operating range towards soft energies
- 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).
Author: | Giocomo Rivolta, Stefano Basso, Marta Civitani, Vincenzo Cotroneo, Thorsten DöhringORCiD, Willy-Leopold Michler, Giovanni Pareschi, Daniele Spiga, Manfred StollenwerkORCiD |
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URL: | 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 |
DOI: | https://doi.org/doi: 10.1117/12.2629940 |
ISSN: | 0277-786X |
Parent Title (English): | Proceedings of SPIE |
Publisher: | SPIE |
Document Type: | Conference Proceeding |
Language: | English |
Year of Completion: | 2022 |
Date of first Publication: | 2022/08/31 |
Creating Corporation: | Osservatorio Astronomico di Brera |
Contributing Corporation: | TH Aschaffenburg |
Release Date: | 2022/09/07 |
Tag: | ATHENA; X-ray; mirror; reflectivity; refractometer |
GND Keyword: | Röntgenspiegel; Diffraktometer |
Volume: | 2022 |
Issue: | 12181 |
Page Number: | 7 |
First Page: | 121814S-1 |
Last Page: | 121814s-7 |
Urheberrecht: | 1 |
Institutes: | Fakultät Ingenieurwissenschaften / Studiengänge / Internationales Technisches Vertriebsmanagement (Bachelor) |
research focus : | Materials / Material Testing & Sensor Technology |
Licence (German): | Keine Lizenz - es gilt das deutsche Urheberrecht |