Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aps..tss.e1006c&link_type=abstract
American Physical Society, Texas Section Spring Meeting, March 1-3, 2001 Huntsville, Texas Bulletin of the American Physical Soc
Astronomy and Astrophysics
Astrophysics
Scientific paper
One of the most critical tasks facing the GLAST satellite is rejecting practically all of the background events while keeping essentially all of the astrophysical gamma rays. The anticipated background rate of 5 kHz compared with a downlinking rate of 30 Hz demands the use of a multi-layered, programmable data acquisition system (DAQ). In order to finalize the design of this system, high fidelity simulations of the data flow are required. This is being accomplished through the use of the primary GLAST event simulator, glastsim, combined with a new tool, DAQEngine. DAQEngine is designed to read in the ASCII instrument response file produced by glastsim and translate it into binary files which are associated with the various data streams produced by the GLAST hardware. These files can then be used in additional studies to optimize the hardware requirements for the data acquisition system. In this talk the design of DAQEngine, along with DAQEngine's contributions to optimization of the DAQ, are described
Carden Russell
Rabidas Danielle
Suson Daniel
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