Shift Summary for eve shift, 15/aug/99 (fwd)

AG (ag@fnal.gov)
Mon, 16 Aug 1999 13:32:38 -0400 (EDT)

Somehow this wasn't sent out properlry first time.

---------- Forwarded message ----------
Date: Mon, 16 Aug 1999 00:57:56 -0400 (EDT)
From: AG <ag@fnal.gov>
To: shiftsum@vivsgi.fnal.gov
Subject: Shift Summary for eve shift, 15/aug/99

Shift Summary for eve shift, 15/aug/99

On Shift: LB, AG

Hours of beam available at all intensities: 8.5h
Hours of beam available at nominal intensity: 8.5h
Hours of E832 data (special runs not included): 8.25 h
Hours of special runs (laser scans, muon runs...): 0. h

Accounting of lost time:

Tape change.

========================================================================

Runs ended this shift:

Run 14235 - 24.78M events BEAM_832

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

QKB089,QKB091,QKB094
QKC267,QKC268,QKC269
QKK267,QKK268,QKK269
QKS267,QKS268,QKS269

========================================================================

Accesses during shift:

None.

========================================================================

Overview of shift:

Smooth E832 data taking with very few problems. Run 14235 ended at 22:30
and run 14236 started at 22:45.

========================================================================

Description of Shift:

run____spill______time_______comment

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

14235____82______1550______SEM = 7.35, next spill SEM = 6.7 .

_________87______1558______SEM = 7.2, next spill SEM = 7.1, we call MCR.

_________92______1602______Ktevana errors:
___________________________ o missing FFFF word in stream 5,
_________93________________ o L1 timing shift,
_________93________________ o channels with no ped events.
___________________________Ran kfrend.

________100______1618______Beam is gone.
___________________________CH13:
___________________________ o Abort at 0.01 at A2,
___________________________ o SY energy conservation in effect.
________117______1636______Beam is back.

________180______1800______Problem with on-line histograms:
___________________________one of HCC Bit threshold histograms
___________________________(energy of CsI blocks) has 'frowny' face -
___________________________experts have been notified.

________183______1805______Ktevana errors:
___________________________ o missing FFFF word in stream 5.
___________________________Ran kfrend.

________200______1835______HCC is inefficient.
________204________________Reloded Et and HCC. Potentially bad spills.

________230______1910______Beam vertical mean values move way off:
___________________________ o NM2WC1 = 6.2
___________________________ o NM2SEED1 = 17.3
___________________________ o NM2SEED2 = 16.4
________233______1912______We call MCR.
________236______1918______Beam position is back to normal, MCR will
___________________________investigate auto-tune.

________238______1920______Ktevana errors:
___________________________ o missing FFFF word in stream 5.
___________________________Ran kfrend.

________242______1927______Ktevana errors:
___________________________ o MKFERADC: Unknown crate in stream 5.
___________________________ o Bad trigger mask verification
___________________________Ran kfrend twice.

________290______2036______CAMAC button on SDAQ panel goes red:
___________________________ o crate 23, rack 41 shows initial error 8
___________________________we choose to ignore the error and see if it
___________________________comes back.

________312______2056______Beam is gone.
___________________________CH13:
___________________________ o SY energy conservation in effect.
________317______2104______ o SY energy conservation period ended.
________318______2105______Beam is back.

________378______2228______Tapes are full.
___________________________We changed tapes and started new run.

_________________2240______Onsplit requested tape mount.
___________________________We mounted QKPE11 on tps2d3 on ktev3.

14236_____1______2245______Ktevana errors:
___________________________ o missing FFFF word in stream 5.
___________________________Ran kfrend.

========================================================================

Follow up Notes on Previous Shift


No muon run and no magnet polarity changes till Monday Day shift.

o Successfully resisted the temptation to do a muon run or at least
to flip magnet polarity a couple of times.

========================================================================

Items to Follow up on Next Shift

Next time do drt_fresh_start after tapes change to launch DC monitoring.