The Trigger and Onboard Filter of the GLAST Large Area Telescope
- OSU, NRL, SLAC, GSFC, UMd, SLAC, NYCB, OSU, SLAC, OSU (United States)
The GLAST Large Area Telescope (LAT) will measure the cosmic gamma-ray flux in the energy range 20 MeV to >300 GeV. The LAT will open a new and important window on a wide variety of high-energy phenomena. Achieving the capability requires a hardware trigger and onboard software event filters that are robust and highly efficient for gamma rays while remaining powerful rejecters of the much larger fluxes of charged-particle backgrounds. Because of the important discovery windows for science and the uncertainties in the background fluxes, configuration flexibility is a particularly important system feature. This paper describes the purposes and architecture of the system, the components and capabilities of the hardware trigger and onboard software filters, and the on-orbit operations plan and expected performance.
- OSTI ID:
- 21067317
- Journal Information:
- AIP Conference Proceedings, Vol. 921, Issue 1; Conference: 1. GLAST symposium, Stanford, CA (United States), 5-8 Feb 2007; Other Information: DOI: 10.1063/1.2757455; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA). LAT Collaboration; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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