RADMON will trigger SCS 107 (SI safing) if ANY of the following three EPHIN channels exceeds the on-board threshold for 10 consecutive samples. EPHIN samples are sent to the OBC each 65.6 seconds.
THRESHOLDS
LARGE Geom SMALL Geom
cts/cm^2-s-sr cts/sample cts/sample
------------- ---------- ----------
E1300 (electrons, 2.64 - 6.18 MeV): 10.0 1318.56 78.72
P4GM (protons, 5.0 - 8.3 MeV): 300.0 3542.4 3542.4
P41GM (protons, 41 - 53 MeV): 8.47 100.0 100.0
New thresholds after EPHIN reconfiguration 09 Dec 2008
Name Contents Trigger value
---- -------------------------------- -------------
E150 = E150(old) + P4GM + H4GM + B_noise 800000
E1300 = E1300 + P25GM + H25GM 1000 1000
HRC (uncalibrated 2DETART) 30.
Last updated: 12/09/08 BDS