Difference between revisions of "Run Planning Meeting Notes, March 11 - march 15, 2024"

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(Created page with "= Tuesday, March 12 2024= === Past 24 hours === * 6:37 [https://logbooks.jlab.org/entry/4264955 LCW fluctuation tripped PS magnet]. * Hall C pass change completed early aftern...")
 
(→‎Friday, March 15 2024)
 
(20 intermediate revisions by the same user not shown)
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= Saturday, March 16 2024=
 +
=== Past 24 hours ===
 +
* Smooth running, with rapid accesses for transition radiator configuration changes.
 +
* Test run period ended on March 15th, 23:57.
 +
 +
* Shift Summary
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** [https://logbooks.jlab.org/entry/4267047 Day Monday]
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** [https://logbooks.jlab.org/entry/4267362 Swing Monday]
 +
 +
 +
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* ABUs: 11.3 h
 +
<!-- * Data Summary:  B triggers on empty target -->
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 +
=== Issues ===
 +
*
 +
 +
=== Report ===
 +
*
 +
 +
=== Plan ===
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* End of the test run period
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* Link to runplan: https://halldweb.jlab.org/wiki/index.php/Run_Coordination_Meetings:Winter2024#Runplan
 +
 +
 +
= Friday, March 15 2024=
 +
=== Past 24 hours ===
 +
* Smooth running. Many rapid accesses for transition radiator configuration changes.
 +
 +
* Shift Summary
 +
** [https://logbooks.jlab.org/entry/4266611 Day Monday]
 +
** [https://logbooks.jlab.org/entry/4266779 Swing Monday]
 +
** [https://logbooks.jlab.org/entry/4266904 Owl Tuesday]
 +
 +
 +
* ABUs: 14.5 h
 +
<!-- * Data Summary:  B triggers on empty target -->
 +
 +
=== Issues ===
 +
*
 +
 +
=== Report ===
 +
*[https://logbooks.jlab.org/entry/4266711 Radiator comparison (Lubomir)]
 +
 +
=== Plan ===
 +
* Hall B will work at least until Friday mid-afternoon. There is a possibility of delay until late Monday. We will know by 11am today. Hall D beam will be turned off when Hall B is ready or when we are done with our program. (Shifts manned until midnight only.)
 +
* Data taking with Kr until beam termination later today, perhaps around 4pm shift, maybe later.
 +
* Link to runplan: https://halldweb.jlab.org/wiki/index.php/Run_Coordination_Meetings:Winter2024#Runplan
 +
 +
= Wednesday, March 13 2024=
 +
=== Past 24 hours ===
 +
* Yesterday was efficient (15.5h ABU)
 +
** Photon beam was established and test of the GEM-TRD and GEM started.
 +
** Rapid-access between noon and 14:00 to look at GEM-TRD and GEM.
 +
** Beam back only at 16:40 due to Hall D magnet ramp issue.
 +
** 20:05-20:25 [https://logbooks.jlab.org/entry/4265803 Tagger magnet trip/restoration]
 +
 +
* Shift Summary
 +
** [https://logbooks.jlab.org/entry/4265482 Day Monday]
 +
** [https://logbooks.jlab.org/entry/4265738 Swing Monday]
 +
** [https://logbooks.jlab.org/entry/4265876 Owl Tuesday]
 +
 +
 +
* ABUs: 15.5 h
 +
<!-- * Data Summary:  B triggers on empty target -->
 +
 +
= Thursday, March 14 2024=
 +
=== Past 24 hours ===
 +
* Yesterday was a [https://logbooks.jlab.org/entry/4265990 maintenance day] 7am-20:40. Beam tuning issues for several hours, up to 1:30am.
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*[https://logbooks.jlab.org/entry/4266100 Tagger access to fix the Amo radiator/harp motor issue]
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* GEM/TRD Ar --> Kr Gas change (14:00-19:00).
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* Several rapid accesses in Hall to improve acquisition rate, fix some fiber connections.
 +
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* Shift Summary
 +
** [https://logbooks.jlab.org/entry/4266031 Day Monday]
 +
** [https://logbooks.jlab.org/entry/4266363 Swing Monday]
 +
** [https://logbooks.jlab.org/entry/4266446 Owl Tuesday]
 +
 +
 +
* ABUs: 7.7 h
 +
<!-- * Data Summary:  B triggers on empty target -->
 +
 +
=== Issues ===
 +
*
 +
 +
=== Report ===
 +
*[https://logbooks.jlab.org/entry/4266471 First results with Krypton]
 +
 +
=== Plan ===
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* Data taking with Kr. Accesses for transition radiator changes?
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* Hall B believe they will work until Friday noon. Hall D beam is expected to be turned off at about that time.
 +
* Link to runplan: https://halldweb.jlab.org/wiki/index.php/Run_Coordination_Meetings:Winter2024#Runplan
 +
 +
= Wednesday, March 13 2024=
 +
=== Past 24 hours ===
 +
* Yesterday was efficient (15.5h ABU)
 +
** Photon beam was established and test of the GEM-TRD and GEM started.
 +
** Rapid-access between noon and 14:00 to look at GEM-TRD and GEM.
 +
** Beam back only at 16:40 due to Hall D magnet ramp issue.
 +
** 20:05-20:25 [https://logbooks.jlab.org/entry/4265803 Tagger magnet trip/restoration]
 +
 +
* Shift Summary
 +
** [https://logbooks.jlab.org/entry/4265482 Day Monday]
 +
** [https://logbooks.jlab.org/entry/4265738 Swing Monday]
 +
** [https://logbooks.jlab.org/entry/4265876 Owl Tuesday]
 +
 +
 +
* ABUs: 15.5 h
 +
<!-- * Data Summary:  B triggers on empty target -->
 +
 +
=== Issues ===
 +
* Amo radiator/harp motor. (Access today to investigate it)
 +
 +
 +
=== Questions ===
 +
*Man shifts for Friday swing?
 +
 +
=== Plan ===
 +
* [https://logbooks.jlab.org/entry/4265990 Maintenance day 7am-21:00±??]
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* Morning Tagger access to investigate Amo radiator/harp motor issue.
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* Gas change.
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* Rapid access to improve acquisition rate.
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* Link to runplan: https://halldweb.jlab.org/wiki/index.php/Run_Coordination_Meetings:Winter2024#Runplan
 +
 
= Tuesday, March 12 2024=
 
= Tuesday, March 12 2024=
 
=== Past 24 hours ===
 
=== Past 24 hours ===
Line 6: Line 130:
 
* 23:30 Although the first amorphous radiator motion was normal, [https://logbooks.jlab.org/entry/4265142 it got stuck in its way to get retracted.]
 
* 23:30 Although the first amorphous radiator motion was normal, [https://logbooks.jlab.org/entry/4265142 it got stuck in its way to get retracted.]
 
** Hovanes reduced motor speed to 30% of nominal
 
** Hovanes reduced motor speed to 30% of nominal
−
** We decided to drop the program on 10<sup>-4</sup> and 3*10<sup>-4</sup> RL radiators, as well as Ion Chambers threshold calib. on those. We also drop the plan for our Harp scan since it uses the same motor.  
+
** We decided to drop the program on 10<sup>-4</sup> and 3×10<sup>-4</sup> RL radiators, as well as Ion Chambers threshold calib. on those. We also drop the plan for our Harp scan since it uses the same motor.  
−
 
+
* 01:05 [https://logbooks.jlab.org/entry/4265328 radiator motion issue again despite reduced speed]
−
* To-do
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* 03:20 Ion Chamber calibration done (2×10<sup>-5</sup> radiator only because of motor issue)
−
**Noon: rapid access (2h, 5 persons) for DAQ and detector work. 
+
* 05:20 Active Collimator calibration done (high gain only because of radiator motor issue)
−
 
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* Transmission looks decent: 5kHz rate in the PSC counters compared to expected 8.7kHz for optimal, converging, beam (100 nA, 2×10<sup>-5</sup> RL 750um TPOL converter)
−
*Questions:
+
−
**Access to tagger to look at amorphous radiator/harp motor?
+
−
**Man shifts for Friday day/swing?
+
  
 +
*MCC Harp scans: [https://logbooks.jlab.org/entry/4265217 5C00], [https://logbooks.jlab.org/entry/4265288 5C11], [https://logbooks.jlab.org/entry/4265289 5C11b]. They are decent.
  
  
Line 23: Line 145:
  
  
−
* ABUs: 11.8 h
+
* ABUs: 0 h
 
<!-- * Data Summary:  B triggers on empty target -->
 
<!-- * Data Summary:  B triggers on empty target -->
  
 
=== Issues ===
 
=== Issues ===
−
*
+
* Amo radiator/harp motor.
 +
* [https://logbooks.jlab.org/entry/4265319 Notable bleedthrough] (unexpected but not an issue?). It is clearly correlated with beam on in Hall C. [https://logbooks.jlab.org/entry/4265328 It seems it was fixed during the night]
 +
 
 +
 
 +
=== Questions ===
 +
**Access to tagger today or Wednesday to look at amorphous radiator/harp motor?
 +
**Man shifts for Friday day/swing?
 +
 
 
=== Plan ===
 
=== Plan ===
−
* Accelerator maintenance day.
+
* Noon: rapid access (2h, 5 persons) for DAQ and detector work.
−
* Link to runplan: https://halldweb.jlab.org/wiki/index.php/Run_Coordination_Meetings:Spring2023#Runplan
+
* Link to runplan: https://halldweb.jlab.org/wiki/index.php/Run_Coordination_Meetings:Winter2024#Runplan
−
* Align diamonds
+

Latest revision as of 07:03, 16 March 2024

Saturday, March 16 2024

Past 24 hours

  • Smooth running, with rapid accesses for transition radiator configuration changes.
  • Test run period ended on March 15th, 23:57.


  • ABUs: 11.3 h

Issues

Report

Plan


Friday, March 15 2024

Past 24 hours

  • Smooth running. Many rapid accesses for transition radiator configuration changes.


  • ABUs: 14.5 h

Issues

Report

Plan

  • Hall B will work at least until Friday mid-afternoon. There is a possibility of delay until late Monday. We will know by 11am today. Hall D beam will be turned off when Hall B is ready or when we are done with our program. (Shifts manned until midnight only.)
  • Data taking with Kr until beam termination later today, perhaps around 4pm shift, maybe later.
  • Link to runplan: https://halldweb.jlab.org/wiki/index.php/Run_Coordination_Meetings:Winter2024#Runplan

Wednesday, March 13 2024

Past 24 hours

  • Yesterday was efficient (15.5h ABU)
    • Photon beam was established and test of the GEM-TRD and GEM started.
    • Rapid-access between noon and 14:00 to look at GEM-TRD and GEM.
    • Beam back only at 16:40 due to Hall D magnet ramp issue.
    • 20:05-20:25 Tagger magnet trip/restoration


  • ABUs: 15.5 h

Thursday, March 14 2024

Past 24 hours


  • ABUs: 7.7 h

Issues

Report

Plan

Wednesday, March 13 2024

Past 24 hours

  • Yesterday was efficient (15.5h ABU)
    • Photon beam was established and test of the GEM-TRD and GEM started.
    • Rapid-access between noon and 14:00 to look at GEM-TRD and GEM.
    • Beam back only at 16:40 due to Hall D magnet ramp issue.
    • 20:05-20:25 Tagger magnet trip/restoration


  • ABUs: 15.5 h

Issues

  • Amo radiator/harp motor. (Access today to investigate it)


Questions

  • Man shifts for Friday swing?

Plan

Tuesday, March 12 2024

Past 24 hours

  • 6:37 LCW fluctuation tripped PS magnet.
  • Hall C pass change completed early afternoon. Then, Ops started to tune hall D beam.
  • 17:30 Ops starting to tune beam to Hall D tagger.
  • 23:30 Although the first amorphous radiator motion was normal, it got stuck in its way to get retracted.
    • Hovanes reduced motor speed to 30% of nominal
    • We decided to drop the program on 10-4 and 3×10-4 RL radiators, as well as Ion Chambers threshold calib. on those. We also drop the plan for our Harp scan since it uses the same motor.
  • 01:05 radiator motion issue again despite reduced speed
  • 03:20 Ion Chamber calibration done (2×10-5 radiator only because of motor issue)
  • 05:20 Active Collimator calibration done (high gain only because of radiator motor issue)
  • Transmission looks decent: 5kHz rate in the PSC counters compared to expected 8.7kHz for optimal, converging, beam (100 nA, 2×10-5 RL 750um TPOL converter)



  • ABUs: 0 h

Issues


Questions

    • Access to tagger today or Wednesday to look at amorphous radiator/harp motor?
    • Man shifts for Friday day/swing?

Plan

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