Shift Summary, 12 Sep 1999 Day Shift

Tony Barker (tonyb@cuhep.Colorado.EDU)
Sun, 12 Sep 1999 14:29:47 -0600 (MDT)

Shift Summary for Day Shift, 09/12/99

On Shift: Bob Hsiung, Tony Barker

Hours of beam available at all intensities: 8:15
Hours of beam available at nominal intensity: 8:15
Hours of E832 data (special runs not included): 7:25
Hours of special runs (laser scans, muon runs...): 0.00

Accounting of lost time: DAQ problems: run would not end
and repeated fresh starts.

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Runs ended this shift: 14506 BEAM_E832 18.8M events.

Tapes brought to FCC this shift: QKK414-419
QKS414-419
QKC414-419
QKB146-147

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Accesses during shift: none

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Overview of shift: 832 data taking at 4.0 E12

Very smooth running.

Lost 50 minutes with DA/tape drive/tape
problems at end of Run 14506.

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Description of Shift:

run spill time comment
------------------------------------------------------------------------
14506 118 07:00 Smooooth running at shift change.

381 12:51 Tapes are full; run TRIES to end.
However, DAQ hangs, and run will not stop.

13:01 Run still hasn't ended. Get some DOT
messages re tape drives.

13:11 Give up; try to save histograms, unload tapes.
Do drt_fresh_start.

14507 13:25 Fresh start fails on opc error.
One drive on ktev1 is requesting cleaning.
Clean drive and fresh start again.

14508 13:30 Drive ktev1:tps2d1 cleaning light comes on again.
Try a new tape this time, and fresh start again.

14509 001 13:42 Run finally starts ok.

14509 084 15:30 Shift ends.

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Follow up Notes on Previous Shift

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Items to Follow up on Next Shift

No muon run needed tonight.

If humidity alarms go off (humidity above 10% in the blockhouse)
call Leonard Nelson. His home number is 630-231-1416; pager
888-750-0702.