Difference between revisions of "Run Planning Meeting Notes, October 28 - November 3, 2021"

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[https://cebaf.jlab.org/files/ops/accboard/ MCC whiteboard]
 
[https://cebaf.jlab.org/files/ops/accboard/ MCC whiteboard]
 
[https://bluejeans.com/660743227 Meeting Bluejeans 660743227]  
 
[https://bluejeans.com/660743227 Meeting Bluejeans 660743227]  
=Monday 01 November=
+
=Tuesday November 02=
 +
#Last 24h:
 +
#* Recorded 1090M+ events
 +
#Issues:
 +
#* Bleedthrough
 +
# [https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2021.pdf Plan:]
 +
#* Continue production at 200nA with the solenoid on.
 +
#* Since Hall A cannot run at present, we are the priority hall.
 +
#* Maintenance day '''shifted to Wed 11/03'''
 +
#* Beam energy change planned for 11/05-11/07
 +
=Monday November 01=
 
#Over the weekend:
 
#Over the weekend:
 
#* Recorded 331M events from Fri, 8am till target was emptied. Then 1400M+ events with empty target until now
 
#* Recorded 331M events from Fri, 8am till target was emptied. Then 1400M+ events with empty target until now
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#* Beam energy change planned for 11/05-11/07
 
#* Beam energy change planned for 11/05-11/07
 
#* Hall A scheduled to come back online on Monday, 11/08
 
#* Hall A scheduled to come back online on Monday, 11/08
=Friday 29 October=
+
=Friday October 29=
 
#Last 24h:
 
#Last 24h:
 
#* Recorded 1090M+ events
 
#* Recorded 1090M+ events
Line 43: Line 53:
 
#* Maintenance day '''shifted to Wed 11/03'''
 
#* Maintenance day '''shifted to Wed 11/03'''
 
#* Beam energy change planned for 11/05-11/07; decision pending due to availability of Hall A
 
#* Beam energy change planned for 11/05-11/07; decision pending due to availability of Hall A
=Thursday 28 October=
+
=Thursday October 28=
 
#Last 24h:
 
#Last 24h:
 
#* Recorded 949M+ events
 
#* Recorded 949M+ events

Revision as of 23:34, 1 November 2021

MCC whiteboard Meeting Bluejeans 660743227

Tuesday November 02

  1. Last 24h:
    • Recorded 1090M+ events
  2. Issues:
    • Bleedthrough
  3. Plan:
    • Continue production at 200nA with the solenoid on.
    • Since Hall A cannot run at present, we are the priority hall.
    • Maintenance day shifted to Wed 11/03
    • Beam energy change planned for 11/05-11/07

Monday November 01

  1. Over the weekend:
    • Recorded 331M events from Fri, 8am till target was emptied. Then 1400M+ events with empty target until now
    • Comment box on DAQ machine did not show up -> restarting DAQ brought it back. Missing comments for some runs recorded in logbook [1]
    • Follow-up Re: Follow-up Re: TAGH scalers, roctagh2
    • Target was emptied at 6:10pm Firday [2]
    • BCAL noise at 10 o'clock
    • Note on neutron background in Hall D
    • Over the weekend, reference plots have been updated to reflect status with empty target [3]
    • When we run with empty target, dont run AI for CDC HV. Stay with 2125V fixed value [4]
    • power cycle of rocTAGH1, rocTAGH2, restart DAQ due to frozen TAGH scalers
    • Spooky halloween shift - accelerator became unstable (lots of RF trips) sunday night [5]
    • Target will be filled this morning (after the meeting). Chris C requested short access during filling to watch target interlock panel
  2. Issues:
    • BCAL noise at 10 o'clock
    • Bleedthrough
  3. Plan:
    • Continue production at 200nA with the solenoid on.
    • Since Hall A cannot run at present, we are the priority hall.
    • Maintenance day on Wed 11/03 beam will be shut off at ~6am
      • Hall D will go into controlled access for maintenance work (FCAL, ...?)
    • Beam energy change planned for 11/05-11/07
    • Hall A scheduled to come back online on Monday, 11/08

Friday October 29

  1. Last 24h:
    • Recorded 1090M+ events
    • Change out of C02
    • RadCon replaced light bulb (was really broken) in our rapid access beacon with an LED bulb
      • Access was necessary, but machine was actually down during that time
    • RCDB web interface was unreachable, shift crew contacted administrator and the service was restarted
    • HallC BCM calibration should not have affected us, but they use varying beam currents for that procedure, which may have changed bleedthrough during run 81620 (see [6])
    • New wiki page with short-term guidance for shifters [7]
    • Beam - RF Timing differences with different trigger types
    • RAID beeping in DAQ room
  2. Issues:
    • BCAL noise at 10 o'clock
    • Bleedthrough
  3. Plan:
    • Continue production at 200nA with the solenoid on.
    • Since Hall A cannot run at present, we are the priority hall.
    • Maintenance day shifted to Wed 11/03
    • Beam energy change planned for 11/05-11/07; decision pending due to availability of Hall A

Thursday October 28

  1. Last 24h:
  2. Issues:
  3. Plan:
    • Continue production at 200nA with the solenoid on.
    • Since Hall A cannot run at present, we are the priority hall.
    • Hall C BCM calibration moved to today (Thursday) 2:30pm.
    • Maintenance day planned for Tue 11/02
    • Beam energy change planned for 11/05-11/07; decision pending due to availability of Hall A