recovered detectors after a EHT arc event on RAITH.
jwc at snf.stanford.edu
Thu Jul 26 09:48:27 PDT 2007
User PanJun reported a loss of detector and SEM functionality at 09:20 AM.
James was needed to troubleshoot and return the system to normal
The event was likely a transient signal through the EHT high tension
supply or through ground point. It was sensed as a possible FE_GUN
arcing event and shut down the EHT to the gun, but did not shut down the
Detectors configuration was lost and I needed administrative level login
and a complete computer hardware reset to reread all the SEM modules.
LREM module may have been revoked by the SW, this module controls the
detectors. I did not see any events recorded in the LEO server or
LEOLOG.log or error.log files.
System restored to functionality at 09:38 AM.
We will closely monitor the conditions in the FE-GUN to see if this
James Conway for Jun Pan
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