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Date: Fri Sep 14 08:12:40 2001, Shift: 00:00-08:00
Supervisor: hiro, with:
Log book#8 pages 127 - 129
Shift Summary:
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1. beam most of the time.
2. run 4723 trig 1, 4, 8
run 4724 trig 1, 4, 8 (T3 anode was not on)
run 4725 trig 1, 4, 8 (restart after T3 on)
run 4726 trig 1, 3, 4, 8 (new store)
3. Anode current of T3 and T5 are very high.
At the begining of the run4726, I noticed the anode
current was close to 100uA for T3 and over 100uA for T5.
By instruction on ZM e-mail, I changed anode HV lowere to
decrease the current. However, I am not sure if there is
enough gain after lowering HV. However, within about 30
minutes, I noticed the those currents were very low (20-30uA).
Therefore, I change them back to the default values. Anyway,
it is very tricky.
Also, about T3, does badtrip software include T3??? If not,
it should be included.
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