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Date: Sun Nov 11 23:51:46 2001, Shift: 16:00-24:00
Supervisor: BHS, with:
Log book#10 pages 127 - 130
Shift Summary:
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1: We got a good store at 17:35, which lasted until 23:30.
PHENIX and BRAHMS voted to dump around 22:00, but noone
listens to us...
2: We lost the first, really good part of the store because
rack 2 in the FE-hut went dead. We investigated and found
that the fuse on the back power connector panel had gone,
and reset it. The problem reappeared several times, and
in the end we found that some of the power connectors had
died. We moved the cables to new, working connectors and in
the end the thing stabilized. We did not find out what caused
it to trip/short in the first place.
So: Runs 5763 and 5764 are data runs, but contain no H1 and
variable HV on the other detectors. They should probably
just be disregarded.
Proper runs:
Trig 4 Trig 6 Settings
5765 193k 102k MRS@90, D5@4A
FFS@30, D1-D4@1/15B
5766 298k 91k Same
5767 88k 27k MRS@40, D5@4A, FS unchanged.
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221k
3: No problems apart from what was mentioned above. MRC did
call once and inform us that the store that was lost at the
end of last run probably died because of our magnet problems.
It hit the wall as the engineer switched on D2, and for some
reason they think this interfered with DX2...
That's about it :-)
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