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T. Handa (Stanford Linear Accelerator Center, Stanford University), GLAST Collaboration
The Gamma-ray Large Area Space Telescope (GLAST) is a next generation high-energy gamma-ray mission designed for observing celestial gamma-ray sources in the energy range from 20 MeV to 300 GeV, with launch anticipated in 2005. The GLAST Large Area Telescope(LAT) has as one of its subsystems a pair-conversion telescope based on single-sided silicon-strip detectors. This ``tracker" is used to convert the incident gamma-rays and track the resulting e+ e- pair, and determine the incident gamma's direction.
To validate the instrument design and the feasibility of its construction, a 1/25 size Beam-Test Engineering Model (BTEM) was built. We present the design and construction of the BTEM including the prototype readout system and its performance using cosmic rays and particle beams at the Stanford Linear Accelerator Center (SLAC).
"Work at SLAC and U.C. Santa Cruz was supported by Department of Energy contract DE-AC03-76SF00515."
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