Difference between revisions of "Run Planning Meeting Notes, July 27-August 5, 2020"
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(Created page with "<- Back to [https://halldweb.jlab.org/wiki/index.php/Run_Coordination_Meetings:Summer2020 Run coordination meeting page] == July 27th-Aug. 3rd == *Solenoid was ramped up...") |
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| − | == July 27th-Aug. | + | == July 27th-Aug. 2nd == |
| − | * | + | *Beni ramped up the solenoid on Aug. 1st. However, due to a problem with the PXI readout, it was ramped down. The solenoid was ramp-up again (Aug. 2nd) to its nominal 1350A, this time without problem. |
| + | *Target was cooled (C. Keith) and latter filled without problem (Aug. 1st) | ||
| + | *Shift Started on Aug. 1st, 8am. | ||
| − | August 1st-2nd : investigating and | + | August 1st-2nd : investigating and attempting to fix [https://logbooks.jlab.org/entry/3819118 a problem with the front-end of the TagM]. Did two long accesses to tagger, but the [https://logbooks.jlab.org/entry/3819589 problem remains]. Due to this, [https://logbooks.jlab.org/entry/3819665 the runplan for August 3-4 has been reorganized] |
*CW beam arrived around 3am on Aug. 2nd, followed by beam quality checks. | *CW beam arrived around 3am on Aug. 2nd, followed by beam quality checks. | ||
**Radiation levels are good. | **Radiation levels are good. | ||
**[https://logbooks.jlab.org/entry/3819476 Beam convergence is good] | **[https://logbooks.jlab.org/entry/3819476 Beam convergence is good] | ||
| + | **[https://logbooks.jlab.org/entry/3819406 Beam position optimized (?)], however transmission [https://logbooks.jlab.org/entry/3819632 doesn't appear to be optimal] | ||
| + | **[https://logbooks.jlab.org/entry/3819651 trigger checked out] | ||
| + | **Radiation level study done. | ||
| + | **15 min calibration runs (in long and production mode) done | ||
| + | **CDC HV scan ongoing. | ||
| + | |||
| + | Issues: | ||
| + | *TagM | ||
| + | *We often get [https://logbooks.jlab.org/entry/3819644 less beam current than requested] | ||
| + | *[https://logbooks.jlab.org/entry/3819644 DAQ start run issue]: reminder of [https://logbooks.jlab.org/entry/3819929 DIRC mis-communication solution] | ||
| + | *[https://logbooks.jlab.org/entry/3819644 Difficulty in setting CDC HV for CDV HV scan], see also [https://logbooks.jlab.org/entry/3819845 Keigo's entry]. It was fixed by rebooting the IOC. | ||
| + | |||
| + | Upcoming days: | ||
| + | *[https://upload.wikimedia.org/wikipedia/commons/4/40/NHC_AL092020_5day_cone_no_line_and_wind.png Hurricane/tropical storm Isaias] | ||
| + | *TagM communication issue | ||
| + | *[https://halldweb.jlab.org/wiki/images/6/68/Week1.png Week 1 time chart] | ||
| + | *[https://logbooks.jlab.org/entry/3819445 Richard plan for Act. Col. test ] | ||
| + | *Thursday: 1->5 pass change for Hall B. Hall A on-line. | ||
| + | *Tuesday 11th: Maintenance day? | ||
| + | |||
| + | == Aug. 3rd == | ||
| + | |||
| + | [https://logbooks.jlab.org/entry/3819971 Run plan for today] | ||
| + | |||
| + | Tasks completed: | ||
| + | *Took 1h "production" (with TagM down) amorphous run. | ||
| + | *[https://logbooks.jlab.org/entry/3820227 Hovanes finalized the optimization of the transmission.] Optimal transmission is obtained for: | ||
| + | **Profiler: X = - 1.8 Y = - 2.1 | ||
| + | **AC: X = 0.8 Y = -0.4 | ||
| + | *[https://logbooks.jlab.org/entry/3820171 TagM fixed after 1:30pm-4:40-pm access]. Sergey and Lubomir worked opportunistically in the Hall on TRD during Tagger access. | ||
| + | *[http://zeus.phys.uconn.edu/halld/cobrems/harptool.cgi?harp5C11_xsigma=0.9297&harp5C11_xsigma_err=0.03&harp5C11_ysigma=0.3724&harp5C11_ysigma_err=0.03&harp5C11B_xsigma=0.9896&harp5C11B_xsigma_err=0.15&harp5C11B_ysigma=0.3234&harp5C11B_ysigma_err=0.15&radHarp_xsigma=0.8386&radHarp_xsigma_err=0.02&radHarp_ysigma=0.2405&radHarp_ysigma_err=0.02&harp5C11_spos=102.97&harp5C11B_spos=115.11&emittance_x=0.0038&radHarp_spos=119.7&emittance_y=0.0021&collimator_spos=194.92&fit=fit+and+plot Harp scan] | ||
| + | *Short empty target run (cut short by CEBAF shutting down because of tornado alarm): run 72616, 56M events. | ||
| + | |||
| + | Tasks to be done: | ||
| + | *Hovanes to check JD70-105 diamond alignement | ||
| + | *Sacha finalized the trigger check out | ||
| + | *One production cycle at 150nA | ||
| + | *Start regular production. | ||
| + | |||
| + | Issues: | ||
| + | *[https://logbooks.jlab.org/entry/3820217 Instable beam current] (since the start of the run) | ||
| + | *Monitoring discrepancy: [https://logbooks.jlab.org/entry/3819988 Hovanes observation], [https://logbooks.jlab.org/entry/3819995 Naomi] and [https://logbooks.jlab.org/entry/3820023 Justin] replies | ||
| + | *[https://logbooks.jlab.org/entry/3820258 missing evio files] | ||
| + | *[https://upload.wikimedia.org/wikipedia/commons/4/40/NHC_AL092020_5day_cone_no_line_and_wind.png Hurricane/tropical storm Isaias]: CEBAF down and dropped to restricted access. Survey will not start until noon. Beam not expected until late swing. | ||
| + | |||
| + | Reports: | ||
| + | *[https://logbooks.jlab.org/entry/3820104 Radiation level study] | ||
| + | *[https://logbooks.jlab.org/entry/3820230 Active Collimator Stability] | ||
| + | |||
| + | Upcoming days: | ||
| + | *[https://halldweb.jlab.org/wiki/images/6/68/Week1.png Week 1 time chart] | ||
| + | *[https://logbooks.jlab.org/entry/3819445 Richard plan for Act. Col. test ] | ||
| + | *Thursday: 1->5 pass change for Hall B. Hall A on-line. | ||
| + | *Tuesday 11th: Maintenance day? | ||
| + | |||
| + | |||
| + | == Aug. 4th == | ||
| + | |||
| + | Tasks completed: | ||
| + | *None: recovering from Isaias hurricane, with CEBAF going down on 08/03, ~2:30am | ||
| + | |||
| + | Tasks to be done: | ||
| + | *Hovanes to check JD70-105 diamond alignement | ||
| + | *Sacha finalized the trigger check out | ||
| + | *One production cycle at 150nA | ||
| + | *Start regular production. | ||
| + | |||
| + | Issues: | ||
| + | *[https://logbooks.jlab.org/entry/3820217 Instable beam current] (since the start of the run) | ||
| + | |||
| + | Reports: | ||
| + | *[https://logbooks.jlab.org/entry/3820433 leakage current test of active collimator] | ||
| + | |||
| + | |||
| + | [https://logbooks.jlab.org/entry/3820693 Run plan for today] | ||
| + | |||
Upcoming days: | Upcoming days: | ||
*[https://halldweb.jlab.org/wiki/images/6/68/Week1.png Week 1 time chart] | *[https://halldweb.jlab.org/wiki/images/6/68/Week1.png Week 1 time chart] | ||
*[https://logbooks.jlab.org/entry/3819445 Richard plan for Act. Col. test ] | *[https://logbooks.jlab.org/entry/3819445 Richard plan for Act. Col. test ] | ||
| + | *Thursday/Friday?: 1->5 pass change for Hall B. Hall A on-line? | ||
| + | *Tuesday 11th: Maintenance day? | ||
Latest revision as of 08:23, 5 August 2020
<- Back to Run coordination meeting page
July 27th-Aug. 2nd
- Beni ramped up the solenoid on Aug. 1st. However, due to a problem with the PXI readout, it was ramped down. The solenoid was ramp-up again (Aug. 2nd) to its nominal 1350A, this time without problem.
- Target was cooled (C. Keith) and latter filled without problem (Aug. 1st)
- Shift Started on Aug. 1st, 8am.
August 1st-2nd : investigating and attempting to fix a problem with the front-end of the TagM. Did two long accesses to tagger, but the problem remains. Due to this, the runplan for August 3-4 has been reorganized
- CW beam arrived around 3am on Aug. 2nd, followed by beam quality checks.
- Radiation levels are good.
- Beam convergence is good
- Beam position optimized (?), however transmission doesn't appear to be optimal
- trigger checked out
- Radiation level study done.
- 15 min calibration runs (in long and production mode) done
- CDC HV scan ongoing.
Issues:
- TagM
- We often get less beam current than requested
- DAQ start run issue: reminder of DIRC mis-communication solution
- Difficulty in setting CDC HV for CDV HV scan, see also Keigo's entry. It was fixed by rebooting the IOC.
Upcoming days:
- Hurricane/tropical storm Isaias
- TagM communication issue
- Week 1 time chart
- Richard plan for Act. Col. test
- Thursday: 1->5 pass change for Hall B. Hall A on-line.
- Tuesday 11th: Maintenance day?
Aug. 3rd
Tasks completed:
- Took 1h "production" (with TagM down) amorphous run.
- Hovanes finalized the optimization of the transmission. Optimal transmission is obtained for:
- Profiler: X = - 1.8 Y = - 2.1
- AC: X = 0.8 Y = -0.4
- TagM fixed after 1:30pm-4:40-pm access. Sergey and Lubomir worked opportunistically in the Hall on TRD during Tagger access.
- Harp scan
- Short empty target run (cut short by CEBAF shutting down because of tornado alarm): run 72616, 56M events.
Tasks to be done:
- Hovanes to check JD70-105 diamond alignement
- Sacha finalized the trigger check out
- One production cycle at 150nA
- Start regular production.
Issues:
- Instable beam current (since the start of the run)
- Monitoring discrepancy: Hovanes observation, Naomi and Justin replies
- missing evio files
- Hurricane/tropical storm Isaias: CEBAF down and dropped to restricted access. Survey will not start until noon. Beam not expected until late swing.
Reports:
Upcoming days:
- Week 1 time chart
- Richard plan for Act. Col. test
- Thursday: 1->5 pass change for Hall B. Hall A on-line.
- Tuesday 11th: Maintenance day?
Aug. 4th
Tasks completed:
- None: recovering from Isaias hurricane, with CEBAF going down on 08/03, ~2:30am
Tasks to be done:
- Hovanes to check JD70-105 diamond alignement
- Sacha finalized the trigger check out
- One production cycle at 150nA
- Start regular production.
Issues:
- Instable beam current (since the start of the run)
Reports:
Upcoming days:
- Week 1 time chart
- Richard plan for Act. Col. test
- Thursday/Friday?: 1->5 pass change for Hall B. Hall A on-line?
- Tuesday 11th: Maintenance day?
