Data Acquisition System
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The
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data acquisition system (DAQ) is the brain behind GLAST, as it
makes the initial distinction
between false signals and real gamma ray signals, and decides which of the signals should
be relayed to the ground. This system collects the data from the subsystems, implements
the multi-level event trigger, and provides an on-board science analysis platform to
search for transients.The DAQ consists of specialized electronics and 32-bit
radiation-hard processors that record and analyze the information generated by the
silicon-strip detectors and the calorimeter. The DAQ will be shielded from the
rigors of space-flight, such as extreme high and low temperatures as well as high energy
cosmic rays, which can cause the electronics to malfunction