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 (LiF, Si, RAP) 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 crystals besides Si being an ideal crystal (with parameters which were calculated) have been calibrated individually and after gluing onto the Bragg panel. The X-ray calibration procedures and results 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.
Proceedings of Spie, the International Society for Optical Engineering, 1998, Vol 3445, p. 132-142
Calibration; Carbon; Cobalt; Computer software; Infrared spectrometers; Light reflection; Lithium compounds; Mirrors; Multilayers; Optical resolving power; Ray tracing; Silicon; Radio telescopes; T
Main Research Area:
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy IX, 1998