Bumber filter against micrometeoroids for eROSITA
Abstract
The German X-ray telescope eROSITA will perform the first imaging all-sky survey in the medium energy range up to 10 keV with unprecedented spectral and angular resolution. The launch of eROSITA onboard of the Russian Spectrum- Röntgen-Gamma satellite into an orbit around the L-2 lagrangian point is foreseen in 2016. Even tough the L-2 space environment can be considered free of orbital debris, the presence of extraterrestrial meteoroids in the interplanetary space implies a certain hazard for the eROSITA pnCCDs, as experienced by both pn and MOS cameras onboard XMM-Newton. In this paper we address this question and investigate the response of the optical blocking filter to hypervelocity impacts.
- Publication:
-
Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray
- Pub Date:
- July 2014
- DOI:
- 10.1117/12.2055464
- Bibcode:
- 2014SPIE.9144E..4WP