Stabilized 0.3 2000MEV gamma-ray spectrometer for satellite mission "Coronas-Photon"

Details Stabilized 0.3 2000MEV gamma-ray spectrometer for satellite mission "Coronas-Photon" Stabilized 0.3 2000MEV gamma-ray spectrometer for satellite mission "Coronas-Photon"

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001icrc....8.3030k&link_type=abstract

Proceedings of the 27th International Cosmic Ray Conference. 07-15 August, 2001. Hamburg, Germany. Under the auspices of the Int

Physics

Scientific paper

A γ-ray spectrometer in an energy range of 0.32000MeV based on CsI(Tl) single crystals with a total area of 32 x 36 cm2 and 18 cm thickness is described. A modular structure of the construction allows for logics optimization of the selection of valid events, effective background suppression, and appreciable extension of the operating range of the counting rate of γ-events. A fast system for stabilizing the energy scale by a pulse light source and a slow stabilization-calibration system with the use of a source of "tagged" γ-quanta are employed. Pulse shape discrimination is used for separation of events produced by gamma-ray and neutrons. Plastic scintillators are used to eliminate charge particle background. An energy resolution of (9.9±0.1)% at 0.662MeV and a time resolution for coincidence and anticoincidence of 0.1µs are obtained.

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