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User name Sarah
Log entry time 23:59:09 on November 13, 2009
Entry number 299669
keyword=Swing Shift Summary for Friday, November 13, 2009
Swing Shift Summary for Friday, November 13, 2009
The Shift Crew: Sarah K. Phillips, shift leader
Matt Posik, target wrangler
Dian Cheng, data master until 8:00pm
Paul King, data master from 8pm-midnight.
Special Guest Appearances by:
Seamus Riordan, run coordinator
Mark Dalton, conversationalist
R. Subedi, online analysis expert
Alexandre Camsonne, Compton expert
Xiaochao Zheng, spokeswoman and bringer of food
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Highlights:
16:00 - 17:45 -> Recovery from Compton tuning
17:45 - 22:00 -> Production running
22:00 - 22:40 -> Low current running with the VDCs while Alex does a
Compton test (at 1.5 muA)
22:40 - 24:00 -> Production running
The Run Plan:
1. Production Running
2. More production running
-------------------------------------------------------------------
The Run Down
16:00 - Shift starts off with us recovering from Compton tuning to go
back to production running. We are following the beam recovery
procedure, which takes a little while. We also didn't have a target
operator or a shift leader, so Sarah got drafted as shift leader, and
Matt Posik was drafted as target operator, with Dian Cheng taking over
the data-taking position.
16:25 - Harp scans done, moving target to do spot++ runs.
16:55 - First spot++ looks like the raster is 2x2mm. We proceed through
the list.
17:30 - Beam recovery finishing up; accelerator is having a little
trouble getting up to 100 muA without lots of trips.
17:55 - R. Subedi sets the prescales for the spectrometer DAQ and we go
to production running.
20:00 - Shift checklist done, so Seamus should be happy!
20:02 - EB3 crashes on left HRS DAQ at the end of run 25456, so CODA is
rebooted
20:09 - Paul arrives! His plane finally made it! Yay!
20:30 - We raise the event limit on the right spectrometer CODA DAQ from
5M to 5.7M so that it would quit stopping before the parity DAQ.
22:00 - We go to low current (1.5 muA) so that Alexandre can do some
Compton tests. We are taking advantage of the low current running to
turn on the VDCs and take some data with them.
22:40 - Ended the low current runs and started ramping down the VDCs.
The Compton IOC crashed, so Alex reboots it so that he can move his detector.
22:50 - Back to production running!
24:00 - Shifts ends with production running.
------------------------------------------------------------
------------------------------------------------------------
The Run List
* Production runs:
Run 5002 - Right HRS spot++ at 10 muA.
Run 25449 - Left HRS spot++ at 10 muA.
Run 5003 - Right HRS spot++ at 2 muA.
Run 25450 - Left HRS spot++ at 2 muA.
Run 25451 - Left HRS spot++ at 2 muA.
Run 5004 - Right HRS, Q^2 measurement at 2 muA
Run 25452 - Left HRS, Q^2 measurement at 2 muA
Run 5005 - Right HRS Production run at 100 muA, old prescales
Run 25453 - Left HRS Production run at 100 muA, old prescales
Run 13926 - Parity Production run at 100 muA (target is LD2 and dithering
is on, despite the start run text) Okay pairs: 23.5k
Run 5006 - Right HRS Production run at 100 muA, new prescales
Run 25454 - Left HRS Production run at 100 muA, new prescales
Run 13927 - Parity Production run at 100 muA Okay pairs: 31.6k
Run 5007 - Right HRS Production run at 100 muA
Run 25455 - Left HRS Production run at 100 muA
Run 13928 - Parity Production run at 100 muA Okay pairs: 42.5k
Run 5008 - Right HRS Production run at 100 muA
Run 25456 - Left HRS Production run at 100 muA (EB3 crashed at end; CODA
rebooted)
Run 25457 - Left HRS Production run at 100 muA
Run 13929 - Parity Production run at 100 muA Okay pairs: 35.8k
Run 5009 - Right HRS Production run at 100 muA
Run 25458 - Left HRS Production run at 100 muA
Run 13930 - Parity Production run at 100 muA Okay pairs: 31.2k
Run 5010 - Right HRS Production run at 100 muA
Run 25459 - Left HRS Production run at 100 muA
* Low current running:
Run 13931 - Parity Production run at 1.5 muA
Run 5011 - Right HRS Production run at 1.5 muA
Run 25460 - Left HRS Production run at 1.5 muA
* Production running resumes:
Run 13932 - Parity Production run at 100 muA Okay pairs: 36.8k
Run 5012 - Right HRS Production run at 100 muA
Run 25461 - Left HRS Production run at 100 muA
Run 13933 - Parity Production run at 100 muA Okay pairs: running...
Run 5013 - Right HRS Production run at 100 muA
Run 25462 - Left HRS Production run at 100 muA