Difference between revisions of "Run Planning Meeting Notes, September 30 - October 6, 2021"

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<- Back to [[Run Coordination Meetings:Summer2021]]
 
<- Back to [[Run Coordination Meetings:Summer2021]]
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=Wednesday, October 6=
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#In last 24 hours:
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#* Target work (empty --> LHe4 cell) was completed at 17:00, and beam came back at 19:45.
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#** [https://logbooks.jlab.org/entry/3918490 Radiation Level]: OK
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#** [https://logbooks.jlab.org/entry/3918685 Harp scan]: looks OK
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#* We took [https://logbooks.jlab.org/entry/3918697 a bleedthru study run], and production runs with 200 nA beam through the night.
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#* At 7:05, we started to cool down the target cell without filling with the helium. During cooling down, we are taking data with 100 nA beam.
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#* [https://logbooks.jlab.org/entry/3918848 Early Riser summary]
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#* [https://logbooks.jlab.org/entry/3918720 Owl summary]
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#* [https://logbooks.jlab.org/entry/3918490 Swing summary]
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#* [https://logbooks.jlab.org/entry/3918267 Day summary]
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#* [https://logbooks.jlab.org/entry/3918904 Transmission dropped by about 6%] (Alexandre)
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#Issues:
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#* [https://logbooks.jlab.org/entry/3918220 BCAL TDC occupancy non-uniformity] (Mark D.)
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#* [https://logbooks.jlab.org/entry/3918788 One of the hall cameras cannot be opened.]
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#[https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2021.pdf Plan]:
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#* During cooling down, we continue to take data with 100 nA beam (until Sasha comes to counting house).
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#* After that, we are going to fill the cell with liquid He-4, and start production at the nominal luminosity 200 nA (5 shifts).
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#* After Hall A comes back in the evening, we will perform [https://logbooks.jlab.org/entry/3913494 Radiation level check] and [https://halldweb.jlab.org/hdops/wiki/index.php/Beam_Line_Detectors_Shift#Radiator_Harp_Scan Harp scan].
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#* Also after Hall A comes back, we will take [https://logbooks.jlab.org/entry/3918697 another bleedthru study run] again.
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#* [https://halldweb.jlab.org/wiki/index.php/September_29,_2021_Calorimeter#Minutes For shift workers: FCAL scaler should be checked frequently.]
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=Tuesday, October 5=
 
=Tuesday, October 5=
 
#In last 24 hours:
 
#In last 24 hours:
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#* [https://logbooks.jlab.org/entry/3917744 Swing summary]
 
#* [https://logbooks.jlab.org/entry/3917744 Swing summary]
 
#* [https://logbooks.jlab.org/entry/3917557 Day summary]
 
#* [https://logbooks.jlab.org/entry/3917557 Day summary]
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#* We didn't take data for bleedthrough study (with laser off) yesterday. yes we did run 81383 (but short) see: [https://logbooks.jlab.org/entry/3917724 beam structure]
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#* Run 81383 is a short bleedthrough study run with laser OFF. See: [https://logbooks.jlab.org/entry/3917724 beam structure] (Beni)
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#Issues:
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#* [https://logbooks.jlab.org/entry/3917921 CCAL LEDs for 200 nA and 50 nA runs] (Sasha)
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#Issues and reports:
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#* [https://logbooks.jlab.org/entry/3917744 Beam energy drift]
 
#* [https://logbooks.jlab.org/entry/3917520 Weird time difference distribution between two FCAL clusters] (Igal)
 
#* [https://logbooks.jlab.org/entry/3917520 Weird time difference distribution between two FCAL clusters] (Igal)
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#* [https://logbooks.jlab.org/entry/3917559 bg PSC coinc rate comparison with 2/2018] (Richard)
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#* [https://logbooks.jlab.org/entry/3917732 BCAL monitoring plot strange]
 
#[https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2021.pdf Plan]:
 
#[https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2021.pdf Plan]:
 
#* After target work:
 
#* After target work:
 
#** [https://logbooks.jlab.org/entry/3913494 Radiation level check] and [https://halldweb.jlab.org/hdops/wiki/index.php/Beam_Line_Detectors_Shift#Radiator_Harp_Scan Harp scan]
 
#** [https://logbooks.jlab.org/entry/3913494 Radiation level check] and [https://halldweb.jlab.org/hdops/wiki/index.php/Beam_Line_Detectors_Shift#Radiator_Harp_Scan Harp scan]
−
#** Should we take laser OFF data (30min) before hall A comes on line?
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#** Should we take laser OFF data (30min) before hall A comes on line? --> Yes. Set random pulser frequency to 10 kHz.
 
#* Take data with empty target (He-4 gas target).
 
#* Take data with empty target (He-4 gas target).
 
#** 4 shifts with a 200 nA beam. Do we need to take data with 100nA/50nA beams?
 
#** 4 shifts with a 200 nA beam. Do we need to take data with 100nA/50nA beams?
 
#** After this empty target run, we will fill the target (0.5 shift) and start production runs.
 
#** After this empty target run, we will fill the target (0.5 shift) and start production runs.
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#* Hall A will come on line tomorrow afternoon/evening.
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#* Hall A will come on line tomorrow afternoon/evening. --> After hall A comes back, radiation level check/Harp scan will be performed.
 
#* [https://halldweb.jlab.org/wiki/index.php/September_29,_2021_Calorimeter#Minutes For shift workers: FCAL scaler should be checked frequently.]
 
#* [https://halldweb.jlab.org/wiki/index.php/September_29,_2021_Calorimeter#Minutes For shift workers: FCAL scaler should be checked frequently.]
  

Latest revision as of 10:44, 6 October 2021

<- Back to Run Coordination Meetings:Summer2021

Wednesday, October 6

  1. In last 24 hours:
  2. Issues:
  3. Plan:

Tuesday, October 5

  1. In last 24 hours:
  2. Issues and reports:
  3. Plan:
    • After target work:
      • Radiation level check and Harp scan
      • Should we take laser OFF data (30min) before hall A comes on line? --> Yes. Set random pulser frequency to 10 kHz.
    • Take data with empty target (He-4 gas target).
      • 4 shifts with a 200 nA beam. Do we need to take data with 100nA/50nA beams?
      • After this empty target run, we will fill the target (0.5 shift) and start production runs.
    • Hall A will come on line tomorrow afternoon/evening. --> After hall A comes back, radiation level check/Harp scan will be performed.
    • For shift workers: FCAL scaler should be checked frequently.

Monday, October 4

  1. In last 24 hours:
  2. Issues:
  3. Plan:

Sunday, October 3, 10:00 am

  1. In last 24 hours:
  2. Issues:
  3. Plan:

Saturday, October 2, 10:00 am

  1. In last 24 hours:
  2. Issues:
  3. Plan:
    • After this 10:00 meeting, we will stop 50 nA production and turn off chambers (Lubomir is on shift), then Sasha will perform rate scan (it will take 40 min). After that, we will move on to 100 nA production.
    • 100 nA CDC & FDC turn off (2 shifts)
    • 200 nA CDC & FDC turn off (8.4 shifts)
    • Remove Be target to take empty target (will take 8h)
      • On Tuesday, there will very likely be a down time (beam studies or another attempt to fix the Hall C tune mode generator).
      • Hall A will come on line on Wed. (tentative schedule)
    • For shift workers: FCAL scaler should be checked frequently.

Friday, October 1

  1. In last 24 hours:
  2. Issues:
  3. Plan:

Thursday, September 30

  1. In last 24 hours:
  2. Issues:
  3. Plan:
    • Before taking data: check radiation level and beam quality (HARP scan)
    • 50 nA with CDC & FDC turn on (2 shifts), Lubomir must be around
    • 100 nA CDC & FDC turn off (2 shifts)
    • 200 nA CDC & FDC turn off (8.4 shifts)
    • Remove Be target to take empty target (will take 8h. on Monday?)
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