The TIGRE instrument for 0.3-100 MeV gamma-ray astronomy

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 o...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 1995-08, Vol.42 (4), p.907-916
Main Authors: Tumer, 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.
Format: Article
Language:English
Subjects:
Astronomical and space-research instrumentation
Astronomy
Earth, ocean, space
Electrons
Energy resolution
Exact sciences and technology
Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations
Gamma ray detection
Gamma ray detectors
Instruments
Nonhomogeneous media
Optical imaging
Particle scattering
Silicon
X-ray and γ-ray telescopes and instrumentation
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Summary: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 /spl pi/-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-/spl sigma/ 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.< >
ISSN:0018-9499
1558-1578
DOI:10.1109/23.467770