Abstract
The Oriented Scintillation Spectrometer Experiment (OSSE) for the Gamma Ray Observatory is described. OSSE uses four identical NaI(T1)-CsI(Na) phoswich detectors to provide gamma-ray line and continuum detection capability in the 0.05-10 MeV energy range. Additional gamma-ray and neutron detection capability is achieved above 10 MeV. Each detector has a CsI annular shield and a tungsten alloy collimator which define a 5° × 11° (FWHM) field-of-view. The detectors have independent, single-axis orientation systems which permit offset pointing to provide source-background subtraction. The sensitivity for line gamma rays in the 0.05-10 MeV region will be 2-3 × 10-5 photons/cm2-s for a 106-second observation period. The several modes of data acquisition and the emphases for the planned observational program are discussed.
Original language | English (US) |
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Pages (from-to) | 109-112 |
Number of pages | 4 |
Journal | Advances in Space Research |
Volume | 3 |
Issue number | 4 |
DOIs | |
State | Published - 1983 |
ASJC Scopus subject areas
- Aerospace Engineering
- Astronomy and Astrophysics
- Geophysics
- Atmospheric Science
- Space and Planetary Science
- Earth and Planetary Sciences(all)