shift summary for owl shift 08.14.99

Jim Graham (jagraham@hep.uchicago.edu)
Sat, 14 Aug 1999 07:02:35 -0500

Shift Summary for owl shift, 08.14.99

On Shift: JAG, RP

Hours of beam delivered at all intensities: 3.
Hours of beam delivered at nominal intensity: 3.
Hours of E832 data (special runs not included): 3.
Hours of special runs (laser scans, muon runs...): 0.0

Accounting of lost time: none

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Runs ended this shift:
Run 14224 ongoing

Tapes brought to FCC this shift: none

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Accesses during shift: none

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Overview of shift: E832 datataking while we had beam. No Ktev problems,
beam loss due to low beta-quench.

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Description of Shift:

run spill time comment
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14224 01:00 beam returns
01:25 intensity up a bit to 7E12
01:38 looked at online histos. Only problems are
DC sods creeping a little high, and an hccmon
'frowny' on the hcc threshold plot -- but that
looks fine to me and the 'smiley' comes back later.

02:59 mount onsplit tape QKA011
460 03:51 LW quadrant of CsI drops out of Laser plots, leading
to 'laser RMS too wide' and other warnings. Fixed
within 2 spills.

04:05 beam gone due to low beta quench

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Follow up Notes on Previous Shift

CsI 1773 doesn't appear on csigain#list, looks okay

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Items to Follow up on Next Shift

Gas check: the Argon Ethane looks low on supply side from west wall
supply ( < 25 psi). The regulated side looks okay at 10 psi, and the
flow rates are nominal at around 70. Also, Dave Northacker was in to
look at stuff on last night's eve shift. But if things change, a DC
expert should probably look at this.

Regards, Jim