Calibration and modeling of the SODART-OXS Bragg spectrometer on board the SRG satellite

Ingolf Halm; Hans-Joachim Wiebicke; Finn Erland Christensen; Peter K. Frederiksen; Ib Lundgaard Rasmussen

doi:10.1117/12.330271

10 November 1998 Calibration and modeling of the SODART-OXS Bragg spectrometer on board the SRG satellite

Ingolf Halm, Hans-Joachim Wiebicke, Finn Erland Christensen, Peter K. Frederiksen, Ib Lundgaard Rasmussen

Proceedings Volume 3445, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy IX; (1998) https://doi.org/10.1117/12.330271
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

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.

Citation Download Citation

Ingolf Halm, Hans-Joachim Wiebicke, Finn Erland Christensen, Peter K. Frederiksen, and Ib Lundgaard Rasmussen "Calibration and modeling of the SODART-OXS Bragg spectrometer on board the SRG satellite", Proc. SPIE 3445, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy IX, (10 November 1998); https://doi.org/10.1117/12.330271

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