| Autor: |
Ingolf Halm, Finn Erland Christensen, H.-J. Wiebicke |
| Rok vydání: |
2000 |
| Předmět: |
|
| Zdroj: |
X-Ray and Gamma-Ray Instrumentation for Astronomy XI. |
| ISSN: |
0277-786X |
| DOI: |
10.1117/12.409155 |
| Popis: |
The Objective Crystal Spectrometer (OXS) is part of the SODART X-ray telescope onboard the future SPECTRUM-RONTGEN-GAMMA (SRG) mission. The SODART-OXS energy resolution is compared with those of the gratings of the XMM-NEWTON and CHANDRA telescopes. It is shown that for the high-energy region (2 - 10 keV) SODART-OXS has a substantially better energy resolution (up to 1 order of magnitude). However, the Bragg reflection principle of OXS leads to small photon numbers to be registrated in the detectors. Therefore, a careful choice of observation time and other parameters is necessary. We describe software including a complete ray-tracing procedure which simulates a whole SODART-OXS observation cycle to support the potential observer in his experiment planning. Presently, the software is limited to point sources. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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