July 18 Day Shift Summary

Jason LaDue (jladue@cuhep.Colorado.EDU)
Sun, 18 Jul 1999 14:32:02 -0600 (MDT)

Shift Summary for owl shift, 07/18/99

On Shift: Jason LaDue, Maxim Bychov

Hours of beam delivered at all intensities: 6.5h
Hours of beam delivered at nominal intensity: 6.5h
Hours of E832 data (special runs not included): 5.75h
Hours of special runs (laser scans, muon runs...):0.0h

Accounting of lost time:

Changing tape and Stopping Runs.

Runs ended this shift:
Run 13941 18.1M BEAM_832
Run 13942 6.1M BEAM_832
Run 13943 6.0M BEAM_832

Tapes brought to FCC this shift:
QK*149-152, QKB052.

Accesses during shift:

Overview of shift:
Lose Beam for 2hours due to a Water Skid problem in the Linac.
CsI channel 1769 goes has a gain of ~15% for ~15 spills.

Description of Shift:

run spill time comment
13941 367 07:24 Beam goes away, Ch13 says SY energy conservation.

07:37 Ch13 now says that Booster Water Skid problem.

07:51 Ch13 -> Linac Water Skid, no estimate

13941 08:15 Run stopped.

13942 08:28 Run started.

09:11 SDAQ button turns red. The scaler_check

09:22 Beam returns to Users

92 10:45 CsI channel 2856 has Lsr Stab RMS of 31.6% for 1
spill, then goes away.

107 10:51 KTEVANA errors, Unknown crate Stream 5. KFREND

11:00 DAMP window is frozen, continue to run anyway.

13942 11:51 Run ends, the Tapes are full.

13943 12:17 Run begins.

14 12:33 CsI 1769 has a Gain Drift of -12.6%
Page Ed and Julie.

22 CsI 1769 Gain Drift now under the peak.
Add channel to the monitoring.

14:10 Blue Ice put around Bubbler.

90 14:29 CsI 1769 Gain Drift of -20.1% for one spill only.

106 CsI 1769 Gain Drift of -10%.
107 CsI 1769 Gain Drift of -20%, page Ed.

13943 14:45 End Run 13943 to allow for monitoring of 1769.

13944 14:56 Begin Run, first few spills show no problems
with CsI channel 1769

Follow up Notes on Previous Shift
Did not page Jason H. to replace AZLAT.

Items to Follow up on Next Shift

Page Jason H. if there is a significant amount of down time.
CsI channel 1769 had a bad gain for a few spills.