User name Templon
Log entry time 10:37:47 on December 18,1999
Entry number 31394
keyword=cryotarget, IOC reboot, temp weirdness
cryotarget -- noted temperatures significantly (0.15 deg) above setpt.
Associated with raising beam current. Heater still running (ie had
more headroom to cool target) -- called Kuss. rebooted IOC (he
could not connect to some devices from home).
On further inspection, find now that (after reboot) temperatures are
still higher than desired on CT171 and CT168 (the TV temps) but
other CT's (esp. one on which we are feeding back, CT 97) are all
fine at 6.3 K. Thus for some reason the two CT's closest to the can
are reading 0.15 K higher than all the ones before. Possible candidates:
deterioration of these temperature sensors, or fan in initial stages of
failure. Or of course, something else.