Req. 5.3.6.2: "Deadtime During Gamma Ray Bursts"

The SIU FSW shall contribute less than 25% additional deadtime over that for normal operations for bursts of less than 1 K gamma events within 1 second.

Basis (help)

[3] (5.2.13) [Derived]

3: "LAT Performance Spec. - Level II(b) Spec." (LAT-SS-00010)

5.2.13: "Dead Time {SRD Table 2}"

The dead time shall be less than 100 usec per event.

The goal is to achieve dead time of less than 10 usec per event.

Context (help)

Test(s)

013b: Operational Modes - Science Modes

This test shall verify correct transitions between the various science observation modes and proper operation of the LAT in those modes. The test shall involve all observation modes: Sky Survey Mode (non-rocking as well as various rocking profiles), Pointed Observation Mode, and Repointed Observation Mode.