Ray-tracing study of the eROSITA telescope

E. Perinati; M. Freyberg; T. Mineo; A. Santangelo; C. Tenzer

doi:10.1117/12.2016921

3 May 2013 Ray-tracing study of the eROSITA telescope

E. Perinati, M. Freyberg, T. Mineo, A. Santangelo, C. Tenzer

Author Affiliations +

Proceedings Volume 8777, Damage to VUV, EUV, and X-ray Optics IV; and EUV and X-ray Optics: Synergy between Laboratory and Space III; 87770Y (2013) https://doi.org/10.1117/12.2016921
Event: SPIE Optics + Optoelectronics, 2013, Prague, Czech Republic

Abstract

We perform ray-tracing simulations aimed at investigating the impact on the overall sensitivity of eROSITA of possible small errors in the mechanical shaping and positioning of the baffle rings above the mirror modules, to estimate to what extent they may contribute to degrade the efficiency of the baffle in eliminating the stray-light at the focal plane as well as to increase at the same time the vignetting, then reducing the effective area of the mirrors. Through the simulations we identify the ranges of acceptable tolerances.

Citation Download Citation

E. Perinati, E. Perinati, M. Freyberg, M. Freyberg, T. Mineo, T. Mineo, A. Santangelo, A. Santangelo, C. Tenzer, C. Tenzer, "Ray-tracing study of the eROSITA telescope", Proc. SPIE 8777, Damage to VUV, EUV, and X-ray Optics IV; and EUV and X-ray Optics: Synergy between Laboratory and Space III, 87770Y (3 May 2013); doi: 10.1117/12.2016921; https://doi.org/10.1117/12.2016921

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