Shift Summary: Owl 11/20/99

Jason LaDue (jladue@cuhep.Colorado.EDU)
Sat, 20 Nov 1999 06:04:58 -0700 (MST)

Shift Summary for owl shift, 11/20/99

On Shift: U. Erkarslan, J. LaDue

Hours of beam available at all intensities: 7.00
Hours of beam available at nominal intensity: 7.00
Hours of E799 data (special runs not included): 5.75
Hours of special runs (laser scans, muon runs...): 0.25

Accounting of lost time:
Stopping/starting runs, KFRENDS.

Runs ended this shift:
15017 - 3.7M - BEAM_799
15018 - 4.8M - BEAM_799
15019 - - BEAM_MUON_4E12

Tapes brought to FCC this shift:

Accesses during shift:

Overview of shift:

There is a problem with DC4X_H_R, it was reading at about~3/4 the
rate of DC4X_H_L, this lead to a redefinition of the Hyperon triggers
removing the DC4X_H_L and DC4X_H_R requirements. Some trouble with getting
a run started, but otherwise pretty smooth. Labeled UPH031-060 split

Description of Shift:

run spill time comment
15017 99 00:00 DC4X_H_R rate is screwy again (see previous shifts
15017 00:15 Run Stopped so that we can update the trigger file.
It removes the requirement of 4X from the Hyperon
15018 27 00:54 After some shenanigans, finally get the correct
trigger file loaded.
15018 02:47 Tapes full, run ends. Change tapes.
03:00 UPM033 split tape mount request.
15019 03:08 Start Muon run.
15020 03:35 Start data taking after 6 KFRENDS and two laser
repeater resets.
15020 03:53 Triggers stop with a bunch of fruit busies and
VVH DYC busy. KFREND and continue.
15020 54 04:40 Pipeline errors. Init Pipeline and KFREND.

Follow up Notes on Previous Shift
Got new trigger files installed for Triggers 10, 11, 12.
Labeled UPH split tapes.

Items to Follow up on Next Shift