Difference between revisions of "Run Planning Meeting Notes, Oct 11-Oct 17, 2018"
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− | == | + | == Wednesday, Oct 16 at 08:45 == |
# Notes from the past 24 hours: | # Notes from the past 24 hours: | ||
− | #* | + | #* Slow process in getting beam back to the hall |
+ | #** Didn't finish empty target run until early hours of the morning | ||
+ | #** Postponed Lubomir's run until this morning | ||
+ | #CEBAF | ||
+ | #* Todd's refocusing of our beam this morning | ||
+ | #** [https://logbooks.jlab.org/entry/3610774 Reminder: Justin's figure of merit study] | ||
+ | #Action Items | ||
+ | #Issues | ||
+ | #* More DAQ issues ([https://logbooks.jlab.org/entry/3610640 Owl shift summary]) | ||
+ | #Reports | ||
+ | #* [https://logbooks.jlab.org/entry/3610276 CDC mass flow controller replaced] | ||
+ | #* [https://logbooks.jlab.org/entry/3610739 Vertex position shifting] | ||
+ | #* [https://docs.google.com/spreadsheets/d/1NffTc4-S5PbTMSuH_pp7ZYsGRH4JC_WSVo770_iJYt0/edit#gid=1865737386 Statistics Spreadsheet] | ||
+ | #Run Plan | ||
+ | #* Beam tuning | ||
+ | #* Lubomir's run with no radiator at high current | ||
+ | #* [https://halldweb.jlab.org/wiki/images/d/de/Fall18_week4.jpg Week 4] [https://halldweb.jlab.org/wiki/index.php/File:Fall18_week5.jpg Week 5] | ||
+ | #AOB | ||
+ | #* Beni next RC | ||
+ | #* More RCs needed | ||
+ | == Tuesday, Oct 16 at 08:45 == | ||
+ | # Notes from the past 24 hours: | ||
+ | #* Beam came back on swing shift. Smooth throughout the night | ||
#CEBAF | #CEBAF | ||
− | #* 5th pass separator failed during swing shift and into the beginning of owl. Beam back at 3:20am. | + | #* RF recovery/general maintenance day today |
+ | #** Aggressive timeline: beam back by 1pm | ||
+ | #Action Items | ||
+ | #Issues | ||
+ | #Reports | ||
+ | #* [https://logbooks.jlab.org/entry/3609904 Problematic TAGH TDC module replaced] | ||
+ | |||
+ | #* [https://logbooks.jlab.org/entry/3610231 Energy Monitoring] | ||
+ | #* [https://logbooks.jlab.org/entry/3609746 Normalized PS rates] | ||
+ | #* [https://logbooks.jlab.org/entry/3604587 PS enhancement 1], [https://logbooks.jlab.org/entry/3610227 2] | ||
+ | #**[https://logbooks.jlab.org/entry/3609923 Log entry on beam convergence in Hall D] | ||
+ | #* [https://logbooks.jlab.org/entry/3610202 Monitoring Report] | ||
+ | #* [https://logbooks.jlab.org/entry/3609703 Rate monitoring] | ||
+ | #* [https://docs.google.com/spreadsheets/d/1NffTc4-S5PbTMSuH_pp7ZYsGRH4JC_WSVo770_iJYt0/edit#gid=1865737386 Statistics Spreadsheet] | ||
+ | #Run Plan | ||
+ | #*RF Recovery today. Production Running until Monday when the TAC runs are scheduled | ||
+ | #* [https://halldweb.jlab.org/wiki/images/d/de/Fall18_week4.jpg Week 4] [https://halldweb.jlab.org/wiki/index.php/File:Fall18_week5.jpg Week 5] | ||
+ | #AOB | ||
+ | |||
+ | == Monday, Oct 15 at 08:45 == | ||
+ | # Notes from the past 24 hours: | ||
+ | #* Good weekend of running with stable beam | ||
+ | #CEBAF | ||
+ | #* Spent all day and into swing on Friday to fix BLM trips. This worked, and the beam was quite stable. RF and BLM trips down | ||
+ | #Action Items | ||
+ | #Issues | ||
+ | #* DAQ issues: rocCDC2, dropping to 0 rate during running with 450nA beam. | ||
+ | #Reports | ||
+ | #* [https://logbooks.jlab.org/entry/3609691 BCAL matching in Z] | ||
+ | #* [https://logbooks.jlab.org/entry/3609686 Monitoring Report] | ||
+ | #* [https://logbooks.jlab.org/entry/3609703 Rate monitoring] | ||
+ | #* [https://docs.google.com/spreadsheets/d/1NffTc4-S5PbTMSuH_pp7ZYsGRH4JC_WSVo770_iJYt0/edit#gid=1865737386 Statistics Spreadsheet] | ||
+ | #Run Plan | ||
+ | #*Beam Studies today. We are getting parasitic beam at the moment. Who needs an access? Who wants an access? How long do you need? | ||
+ | #* Likely RF Recovery tomorrow | ||
+ | #* TAC run with V-wire Thursday | ||
+ | #* [https://halldweb.jlab.org/wiki/images/d/de/Fall18_week4.jpg Week 4] [https://halldweb.jlab.org/wiki/index.php/File:Fall18_week5.jpg Week 5] | ||
+ | #* Very likely that on Monday 10/22 Hall C will go down for at least 5 hours, maybe longer. Schedule a TAC run with foil? | ||
+ | #AOB | ||
+ | |||
+ | == Friday, Oct 12 at 08:45 == | ||
+ | # Notes from the past 24 hours: | ||
+ | #* Beam back at 11:30 am, Sasha finished L1 trigger studies by 2:00 pm | ||
+ | #* MCC suggests they recalibrate iIon chamber to reduce trip rates. Previously, it was only calibrated up to 80 nA. | ||
+ | #* Sergey performed high rate DAQ tests with current up to 900 nA | ||
+ | #* [https://logbooks.jlab.org/entry/3607777 David has new online monitoring site up] | ||
+ | #CEBAF | ||
+ | #* Almost 20 BLM trips/hour through yesterday and into the early morning. Hall C went down around 4 am and BLM trips were significantly reduced. They think there is something wrong with the beam that is being injected into the accelerator. | ||
+ | #* Will do a retune of the accelerator around 10am today. Should take 1-2 hours. | ||
+ | #Action Items | ||
+ | #Issues | ||
+ | #* Multiple alarms for BCAL downstream environmental sensors. Elton contacts Nick who reports [https://logbooks.jlab.org/entry/3607819 downstream BCAL PLC -Ethernet port quit]. Access needed. | ||
+ | #* Lots of DAQ issues. Sergey had to revert the software back to a previous version | ||
+ | #* Beam Position Issues | ||
+ | #** [https://logbooks.jlab.org/entry/3607836 Eugene noticed beam was drifting, which coincided with drops in rates (6:00pm)] | ||
+ | #** This continued throughout swing shift and into early morning | ||
+ | #** [https://logbooks.jlab.org/entry/3608143 After an extended downtime, beam appears to be stable through the night] | ||
+ | #** Hall C went down and then we got a retune where the locks in the accelerator were reset. No more drifting. [https://logbooks.jlab.org/entry/3608059 Excess rate over the template suggests that significant parts of the beam are striking the diamond frame]. [https://logbooks.jlab.org/entry/3608067 Improved coherent peak after retune]. | ||
+ | #** [https://logbooks.jlab.org/entry/3608141 The drifts in position do not seem to be related to the beam energy]. | ||
+ | #* [https://logbooks.jlab.org/entry/3608095 Diamond alignment issue?] | ||
+ | #Reports | ||
+ | #* [https://logbooks.jlab.org/entry/3608120 CDC pressure during Michael] | ||
+ | #*[https://logbooks.jlab.org/entry/3608119 Monitoring Report] | ||
+ | #* [https://halldweb.jlab.org/data_monitoring/Plot_Browser.html Plot Browser] | ||
+ | #* [https://docs.google.com/spreadsheets/d/1NffTc4-S5PbTMSuH_pp7ZYsGRH4JC_WSVo770_iJYt0/edit#gid=1865737386 Statistics Spreadsheet] | ||
+ | #Run Plan | ||
+ | #*TAC run next Thursday | ||
+ | #* [https://cebaf.jlab.org/files/ops/accboard/ MCC white board] | ||
+ | #**Beam Studies Monday | ||
+ | #**RF Recovery Tuesday | ||
+ | #* [https://halldweb.jlab.org/wiki/images/d/de/Fall18_week4.jpg Week 4] [https://halldweb.jlab.org/wiki/index.php/File:Fall18_week5.jpg Week 5] | ||
+ | |||
+ | == Thursday, Oct 11 at 08:45 == | ||
+ | # Notes from the past 24 hours: | ||
+ | #* Beam issues most of swing (7hrs to complete amorphous run) and owl shift (~1hr of beam in total). | ||
+ | #CEBAF | ||
+ | #* 5th pass separator failed during swing shift and remained problematic into the beginning of owl. Beam back at 3:20am. | ||
#* PSS drop in the machine at 3:30 am. No beam until 6am. | #* PSS drop in the machine at 3:30 am. No beam until 6am. | ||
#Action Items | #Action Items | ||
#Issues | #Issues | ||
− | #* | + | #* [https://logbooks.jlab.org/entry/3607263 Tail on one side of beam in x and y.] [https://logbooks.jlab.org/entry/3607283 Richard gives a nice explanation of what may be happening. Beam OK for now.] Should we ask for a retune before the weekend? |
− | + | ||
− | + | ||
− | + | ||
#*[https://logbooks.jlab.org/entry/3607331 MyaViewer missing events ] | #*[https://logbooks.jlab.org/entry/3607331 MyaViewer missing events ] | ||
+ | #* [https://logbooks.jlab.org/entry/3607600 Lots of issues with DAQ- rocCDC2] | ||
#Reports | #Reports | ||
− | #*[ Monitoring Report] | + | #*[https://logbooks.jlab.org/entry/3607590 Monitoring Report] |
#* [https://halldweb.jlab.org/data_monitoring/Plot_Browser.html Plot Browser] | #* [https://halldweb.jlab.org/data_monitoring/Plot_Browser.html Plot Browser] | ||
− | #*[https:// | + | #* [https://docs.google.com/spreadsheets/d/1NffTc4-S5PbTMSuH_pp7ZYsGRH4JC_WSVo770_iJYt0/edit#gid=1865737386 Statistics Spreadsheet] |
#Run Plan | #Run Plan | ||
− | #* Hurricane Michael | + | #*Need to schedule a TAC run |
+ | #** Can we do this opportunistically? | ||
+ | #** Use bleedthrough current? | ||
+ | #** Hall C plans to switch experiments on approximately the 22nd. This is around the time of accelerator maintenance, so they may plan to switch experiments then. | ||
+ | #* Hurricane Michael arriving this evening. Do we need to take any precautions? | ||
#* [https://halldweb.jlab.org/wiki/images/d/de/Fall18_week4.jpg Week 4] [https://halldweb.jlab.org/wiki/index.php/File:Fall18_week5.jpg Week 5] | #* [https://halldweb.jlab.org/wiki/images/d/de/Fall18_week4.jpg Week 4] [https://halldweb.jlab.org/wiki/index.php/File:Fall18_week5.jpg Week 5] | ||
#**Beam Studies Monday | #**Beam Studies Monday | ||
− | #**RF Recovery | + | #**RF Recovery Tuesday |
#* | #* | ||
#AOB | #AOB |
Latest revision as of 08:37, 17 October 2018
Contents
Wednesday, Oct 16 at 08:45
- Notes from the past 24 hours:
- Slow process in getting beam back to the hall
- Didn't finish empty target run until early hours of the morning
- Postponed Lubomir's run until this morning
- Slow process in getting beam back to the hall
- CEBAF
- Todd's refocusing of our beam this morning
- Action Items
- Issues
- More DAQ issues (Owl shift summary)
- Reports
- Run Plan
- AOB
- Beni next RC
- More RCs needed
Tuesday, Oct 16 at 08:45
- Notes from the past 24 hours:
- Beam came back on swing shift. Smooth throughout the night
- CEBAF
- RF recovery/general maintenance day today
- Aggressive timeline: beam back by 1pm
- RF recovery/general maintenance day today
- Action Items
- Issues
- Reports
- Run Plan
- AOB
Monday, Oct 15 at 08:45
- Notes from the past 24 hours:
- Good weekend of running with stable beam
- CEBAF
- Spent all day and into swing on Friday to fix BLM trips. This worked, and the beam was quite stable. RF and BLM trips down
- Action Items
- Issues
- DAQ issues: rocCDC2, dropping to 0 rate during running with 450nA beam.
- Reports
- Run Plan
- Beam Studies today. We are getting parasitic beam at the moment. Who needs an access? Who wants an access? How long do you need?
- Likely RF Recovery tomorrow
- TAC run with V-wire Thursday
- Week 4 Week 5
- Very likely that on Monday 10/22 Hall C will go down for at least 5 hours, maybe longer. Schedule a TAC run with foil?
- AOB
Friday, Oct 12 at 08:45
- Notes from the past 24 hours:
- Beam back at 11:30 am, Sasha finished L1 trigger studies by 2:00 pm
- MCC suggests they recalibrate iIon chamber to reduce trip rates. Previously, it was only calibrated up to 80 nA.
- Sergey performed high rate DAQ tests with current up to 900 nA
- David has new online monitoring site up
- CEBAF
- Almost 20 BLM trips/hour through yesterday and into the early morning. Hall C went down around 4 am and BLM trips were significantly reduced. They think there is something wrong with the beam that is being injected into the accelerator.
- Will do a retune of the accelerator around 10am today. Should take 1-2 hours.
- Action Items
- Issues
- Multiple alarms for BCAL downstream environmental sensors. Elton contacts Nick who reports downstream BCAL PLC -Ethernet port quit. Access needed.
- Lots of DAQ issues. Sergey had to revert the software back to a previous version
- Beam Position Issues
- Eugene noticed beam was drifting, which coincided with drops in rates (6:00pm)
- This continued throughout swing shift and into early morning
- After an extended downtime, beam appears to be stable through the night
- Hall C went down and then we got a retune where the locks in the accelerator were reset. No more drifting. Excess rate over the template suggests that significant parts of the beam are striking the diamond frame. Improved coherent peak after retune.
- The drifts in position do not seem to be related to the beam energy.
- Diamond alignment issue?
- Reports
- Run Plan
- TAC run next Thursday
- MCC white board
- Beam Studies Monday
- RF Recovery Tuesday
- Week 4 Week 5
Thursday, Oct 11 at 08:45
- Notes from the past 24 hours:
- Beam issues most of swing (7hrs to complete amorphous run) and owl shift (~1hr of beam in total).
- CEBAF
- 5th pass separator failed during swing shift and remained problematic into the beginning of owl. Beam back at 3:20am.
- PSS drop in the machine at 3:30 am. No beam until 6am.
- Action Items
- Issues
- Tail on one side of beam in x and y. Richard gives a nice explanation of what may be happening. Beam OK for now. Should we ask for a retune before the weekend?
- MyaViewer missing events
- Lots of issues with DAQ- rocCDC2
- Reports
- Run Plan
- Need to schedule a TAC run
- Can we do this opportunistically?
- Use bleedthrough current?
- Hall C plans to switch experiments on approximately the 22nd. This is around the time of accelerator maintenance, so they may plan to switch experiments then.
- Hurricane Michael arriving this evening. Do we need to take any precautions?
- Week 4 Week 5
- Beam Studies Monday
- RF Recovery Tuesday
- Need to schedule a TAC run
- AOB