Calibration and modeling of the SODART-OXS Bragg spectrometer on board the SRG satellite
Abstract
The SODART x-ray telescope includes an objective crystal spectrometer (OXS) providing a high energy resolving power by Bragg reflection upon crystals. To cover a wide energy range, 3 types of natural crystals, and a Co/C multilayer structure upon Si are used in the ranges 5-11 keV, 2-5 keV, 0.5-1.2 keV, and 0.16-0.42 keV. All types of crystal besides Si being an ideal crystal have been calibrated individually and after gluing onto the Bragg panel. The x-ray calibration procedures and result are discussed below. A ray-tracing program using the OXS calibration data and simulating the x- ray photon reflection on the mentioned crystals and the multilayers has been developed and is described also.
- Publication:
-
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy IX
- Pub Date:
- November 1998
- DOI:
- 10.1117/12.330271
- Bibcode:
- 1998SPIE.3445..132H