Title :
The TIGRE instrument for 0.3-100 MeV gamma-ray astronomy
Author :
Tümer, O.T. ; Akyuz, A. ; Bhattacharya, D. ; Blair, S.C. ; Case, G.L. ; Dixon, D.D. ; Liu, C.-J. ; O´Neill, T.J. ; Samimi, J. ; White, R.S. ; Zych, A.D.
Author_Institution :
Inst. of Geophys. & Planetary Phys., California Univ., Riverside, CA, USA
fDate :
8/1/1995 12:00:00 AM
Abstract :
The Tracking and Imaging Gamma-Ray Experiment (TIGRE) uses multilayers of silicon strip detectors both as a gamma-ray converter and to track Compton recoil electrons and positron-electron pairs. The direction and energy of the Compton scattered gamma ray and pair particles are measured with arrays of small CsI(Tl)-photodiode detectors. With a large π-steradian field-of-view, the prototype instrument described is sensitive to gamma rays from 0.3 to 100 MeV with a typical energy resolution of 3% (FWHM) and a 1-σ angular resolution of 120 arc min, at 2 MeV. It has a high absolute detection efficiency of 8% over the full energy range. The telescope is described and Monte Carlo calculations are presented
Keywords :
Monte Carlo methods; astronomical instruments; astronomical telescopes; gamma-ray astronomy; gamma-ray detection; position sensitive particle detectors; silicon radiation detectors; telescopes; 0.3 to 100 MeV; CsI(Tl) photodiode detector; CsI:Tl; Monte Carlo; Si; Si strip detectors; TIGRE instrument; absolute detection efficiency; angular resolution; energy resolution; gamma-ray astronomy; Astronomy; Electrons; Energy resolution; Gamma ray detection; Gamma ray detectors; Instruments; Nonhomogeneous media; Optical imaging; Particle scattering; Silicon;
Journal_Title :
Nuclear Science, IEEE Transactions on
