Run Meeting: Feb 11th, 2019

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3:30PM Run Meeting, Counting house meeting room (200C)

RC: Sanghwa Park

Status

RHS optics data taking revisited due to wrong polarity setting for RHRS Q1. Took RHRS optics data with the correct polarity for a various magnet settings as requested and analyzers are looking at the data. After the optics data taking, Bob started working on coincidence timing. While trying the coincidence timing, had several issues; UPS problem (https://logbooks.jlab.org/entry/3650859) - twice last night, LHRS Q2, Q3 current readback. Didn't see the coincidence time peak https://logbooks.jlab.org/entry/3650893

• Optics run list:
  • https://logbooks.jlab.org/entry/3650418
  • https://logbooks.jlab.org/entry/3650508

• Some preliminary analysis plots from Vardan:
  • https://logbooks.jlab.org/entry/3650528
  • https://logbooks.jlab.org/entry/3650555
  • https://logbooks.jlab.org/entry/3650599
  • https://logbooks.jlab.org/entry/3650654
  • https://logbooks.jlab.org/entry/3650806
  • https://logbooks.jlab.org/entry/3650859

• Work during the access:

- Sieve in for RHRS: https://logbooks.jlab.org/entry/3651039

- Techs: LHRS current readback problem: https://logbooks.jlab.org/entry/3651069

- LHRS TDC troubleshooting (Evan, Alex): https://logbooks.jlab.org/entry/3651021

• Accelerator:

RF work on 1L20 started at 9:30 after Hall C high current test. Beam is coming back now as I am writing (3:15).

• Plan:
  • Take optics runs with Optics 1 and 2 targets

p0 = 1.104 GeV/c., Septum = 1100A
Q3: nominal setting, -10%
No raster.
Take two runs: 1) 100k events, 2) 1M events

• Task list

Slides/Links

MCC scheduling Whiteboard: http://accboard.acc.jlab.org/

APEX wiki page: https://hallaweb.jlab.org/wiki/index.php/APEX

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