International Conference on Particle Physics and Astrophysics | |
Simulation of GRIS spectrometer response to the solar gamma-ray flare of 23 July 2002 | |
物理学;天文学 | |
Trofimov, Yu.A.^1 ; Kotov, Yu.D.^1 ; Yurov, V.N.^1 ; Lupar, E.E.^1 ; Faradzhaev, R.M.^1 ; Glyanenko, A.S.^1 | |
National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe highway 31, Moscow | |
115409, Russia^1 | |
关键词: Cosmic background radiation; Counting rates; Energy ranges; Energy resolutions; Hard X ray; Low energy thresholds; Solar flare; Solar neutrons; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/798/1/012124/pdf DOI : 10.1088/1742-6596/798/1/012124 |
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学科分类:天文学(综合) | |
来源: IOP | |
【 摘 要 】
GRIS is a prospective experiment designed to measure hard X-rays and γ-rays of solar flares in the energy range from 50 keV to 200 MeV as well as solar neutrons > 30 MeV. This study considers results of GEANT 4 simulation of GRIS detectors response to cosmic background radiation and to the solar flare SOL2002-07-23 (X4.8). It is shown that the GRIS spectrometers have enough sensitivity and energy resolution to measure redshifts of some narrow γ-rays in flare spectra, that the low energy thresholds of the detectors can be lowered considerably without a risk of counting rate saturation during high magnitude flares and that at a choice between LaBr3(Ce) and CeBr3the second one is a preferable scintillator for a hard X-ray and γ-ray spectrometer of solar flares.
【 预 览 】
Files | Size | Format | View |
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Simulation of GRIS spectrometer response to the solar gamma-ray flare of 23 July 2002 | 588KB | download |