Shift Summary for eve shift, 14/aug/99

AG (ag@fnal.gov)
Sun, 15 Aug 1999 00:59:13 -0400 (EDT)

Shift Summary for eve shift, 14/aug/99

On Shift:, R. Barbosa, BobT, AG

Hours of beam available at all intensities: 1.5 h
Hours of beam available at nominal intensity: 1.5 h
Hours of E832 data (special runs not included): .5 h
Hours of special runs (laser scans, muon runs...): .2 h

Accounting of lost time:

No beam.
KQ problems while initializing for muon run.

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Runs ended this shift:

Run 14227 - 0 events COSMIC
Run 142330 - 750k events - BEAM_MUON

Tapes brought to FCC this shift:
(including tapes for online split)

QKC258,QKC259,QKC260
QKK258,QKK259,QKK260
QKS258,QKS259,QKS260

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Accesses during shift:

None.

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Overview of shift:

No beam mostly. Around 22:00 beam returns and we took muon run without
changing magnet polarity. It took longer due to initialization problems.
At 23:30 we started taking E832 data.

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Description of Shift:

run____spill______time_______comment

------------------------------------------------------------------------

_________________1330______Problem with a Low Beta power supply.
___________________________Also, B1 wet engine problems. Estimate for
___________________________beam, a minimum of four hours.

_________________1753______Problems with a Low Beta power supply.
___________________________Estimate for beam, a minimum of two hours.

_________________1952______Problems with a Low Beta power supply.
___________________________Estimate for beam, a minimum of two hours.

_________________2205______Beam returns! Stop cosmic run and setup for
___________________________muons. Initialization takes too long:
___________________________OCP PRC timeout on ktev3 -> drt_fresh_start
___________________________Now it takes too long to initialize kumquats
___________________________dart log file says there is an error while
___________________________initializing kumquats. We manually reset them
___________________________and do fresh start again... Finally finished
___________________________Muon run. Pissed away 30 minutes of beam due to
___________________________initialization problems!

_________________2330______Start BEAM_832.

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Follow up Notes on Previous Shift

1. When/If beam comes back do muon run.

o Done.

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Items to Follow up on Next Shift