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Gamma Ray Large Area Space Telescope (GLAST) Balloon Flight Engineering Model: OverviewThe Gamma Ray Large Area Space Telescope (GLAST) Large Area Telescope (LAT) is a pair-production high-energy (greater than 20 MeV) gamma-ray telescope being built by an international partnership of astrophysicists and particle physicists for a satellite launch in 2006, designed to study a wide variety of high-energy astrophysical phenomena. As part of the development effort, the collaboration has built a Balloon Flight Engineering Model (BFEM) for flight on a high-altitude scientific balloon. The BFEM is approximately the size of one of the 16 GLAST-LAT towers and contains all the components of the full instrument: plastic scintillator anticoincidence system (ACD), high-Z foil/Si strip pair-conversion tracker (TKR), CsI hodoscopic calorimeter (CAL), triggering and data acquisition electronics (DAQ), commanding system, power distribution, telemetry, real-time data display, and ground data processing system. The principal goal of the balloon flight was to demonstrate the performance of this instrument configuration under conditions similar to those expected in orbit. Results from a balloon flight from Palestine, Texas, on August 4, 2001, show that the BFEM successfully obtained gamma-ray data in this high-background environment.
Document ID
20020070500
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Thompson, D. J. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Godfrey, G. (Stanford Linear Accelerator Center United States)
Williams, S. M. (Stanford Univ. United States)
Grove, J. E. (Naval Research Lab. United States)
Mizuno, T. (Hiroshima Univ. Japan)
Sadrozinski, H. F.-W. (California Univ. Santa Cruz, CA United States)
Kamae, T. (Stanford Linear Accelerator Center United States)
Ampe, J. (Naval Research Lab. United States)
Briber, Stuart (Independent High School San Jose, CA United States)
Dann, James (Saint Ignatius High School San Francisco, CA United States)
White, Nicholas E.
Date Acquired
September 7, 2013
Publication Date
January 1, 2001
Subject Category
Astronomy
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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