High-spectral-resolution x-ray measurements of solar flares and gama ray bursts on two new small satellites

Upendra D. Desai; Mario H. Acuna; Thomas L. Cline; Brian R. Dennis; Larry E. Orwig; Jacob I. Trombka; Richard D. Starr

doi:10.1117/12.259701

25 November 1996 High-spectral-resolution x-ray measurements of solar flares and gama ray bursts on two new small satellites

Upendra D. Desai, Mario H. Acuna, Thomas L. Cline, Brian R. Dennis, Larry E. Orwig, Jacob I. Trombka, Richard D. Starr

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Proceedings Volume 2804, Missions to the Sun; (1996) https://doi.org/10.1117/12.259701
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

Two new small satellites will be launched in late 1996, each carrying x-ray and gamma-ray detectors capable of high spectral resolution while operating at or near room temperature. The Argentinean Satellite de Aplicaciones Cientificas B (SAC-B) and the Small Spacecraft Technology Institute Clark mission will each carry several arrays of x- ray detectors primarily to study solar flares and gamma ray bursts. Arrays of small (8 mm X 8 mm X 2 mm thick) cadmium zinc telluride detectors will provide x-ray measurements in the 5 - 60 keV range with an energy resolution of 2 - 4 keV. Arrays of both silicon avalanche photodiodes (APDs) and P-intrinsic-N photodiodes will provide energy coverage from 2 to 20 keV with approximately 1 keV resolution. High energy data from 30 to 300 keV will be obtained on SAC-B using CsI(TI) scintillators coupled to silicon APDs, resulting in significant savings in weight, power, and volume relative to conventional CsI- photomultiplier systems.

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Upendra D. Desai, Mario H. Acuna, Thomas L. Cline, Brian R. Dennis, Larry E. Orwig, Jacob I. Trombka, and Richard D. Starr "High-spectral-resolution x-ray measurements of solar flares and gama ray bursts on two new small satellites", Proc. SPIE 2804, Missions to the Sun, (25 November 1996); https://doi.org/10.1117/12.259701

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KEYWORDS

Sensors

Avalanche photodetectors

X-rays

Silicon

Solar processes

X-ray detectors

Gamma radiation

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