Difference between revisions of "RunPlanDaily CREX"
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0. Start by ramping(cycling) quads and septum back up to nominal values and take hall back to Beam Permit. | 0. Start by ramping(cycling) quads and septum back up to nominal values and take hall back to Beam Permit. | ||
1. Usual checks. Beam spot size (previously around 300 um) and raster size with Spot++ on C-hole. | 1. Usual checks. Beam spot size (previously around 300 um) and raster size with Spot++ on C-hole. | ||
| − | 2. Check Compton rates at 10 muA on C-1% | + | 2. Check Compton rates at 10 muA on C-1%. Make sure HVs are correct- main detector and SAMs on and others off. |
| − | 3. Establish beam current at new level on Ca48 and reset IC levels. MCC should be able to do this at request but verify that the thresholds are close (~5% above mean values) | + | 3. Establish beam current at new level on Ca48 and reset IC levels. MCC should be able to do this at request but verify that the thresholds are close (~5% above mean values). Check dpp and beam position are good. |
4. Take new pedestal runs on for new current settings (list of detectors/monitors ....) | 4. Take new pedestal runs on for new current settings (list of detectors/monitors ....) | ||
5. Ensure the lower current more than makes up for lost Coulombs by increased efficiency. | 5. Ensure the lower current more than makes up for lost Coulombs by increased efficiency. | ||
Revision as of 14:33, 28 August 2020
CREX Main << Run Coordinator Tools
Current Daily Run Plans
The current day is indicated by a color.
| Day, Date | Shift | Tasks (Responsible Party) | Comments/Status |
|---|---|---|---|
| Sat Aug 8 | Owl | waiting for beam.. | |
| Day | Waiting for beam | ||
| Swing | Harp scans on 4A and 4B, estimate size at target. If size at target is greater than 100um x100 um, then good to go. Otherwise ask MCC to tune. insert warm C-hole tgt, Request position locks (BPM 4A and 4B) from the white board. Take spot run, analyse and see the C-hole on spectra. Move beam to get C-hole properly. With the proper target center, determine raster currents for 2mmx2mm and 4mmx4mm raster size. When C-hole center and raster current are found, call RC for starting Optics data taking. | checked beam spot size from Harp scan - 143um(x)x209um(y). Good enough for our requirement. | |
| Sun Aug 9 | Owl | ||
| Day | Optics commissioning - https://docs.google.com/spreadsheets/d/1SngpqgLLULtcuKD0t9k-A2Cpmxy1jb5bIYnnP8f8zPM/edit#gid=1910123414 | ||
| Swing | Continue optics data taking. We are planning to skip +1 dp scan completely. After completing -1%dp scan, we will go to the nominal magnet settings and take watercell data for very high statistics (~10M) for (-0.3,-1.5) BPM A and E positions. After that we will request for an access to take out sieve. Then we will take sieve out C target (with and without raster -1M events) and watercell data 10M events for the above BPM positions. Then we will do detector alignment with VDC and GEMs. Finally Qsq measurements. If we are left with time after completing all above steps, then we may go to +1%dp scan or bulleye scan based on how much time available before MCC pushes for higher current. | ||
| Mon Aug 10 | Owl | Continue plan from yesterday's swing | |
| Day | During escorted access, take out sieve slits, move upstream and AT detectors to integrating mode. We are going to start high current beam commissioning after the access. | With out Sieve slits data, alignment and Qsq will be done in Future. | |
| Swing | Going straight tonight (not through chicane) . Continue High current commissioning -Ion chamber calibration upto 20 uA (compare with Feb calibration data). Commissioning FFB, Verify Ca target with spot++. Start Ca target burn off (Call Silviu before starting the burn off procedure). BMod commissioning (call Victoria). Production | Ion chamber calibrations done. FFB is commissioned, Burn off is done. | |
| Tue Aug 11 | Owl | BMod commissioning. Detector alignment with downstream detectors (call Devi, turn on Downstream main det with -1900V. Turn off downstream quartz, VDCs and scintillators before going to high current). Production with whatever acceptable current for Compton background. | |
| Day | Accelerator is down for maintenance work | ||
| Swing | Harp scan on 4A and 4B, estimate beam size at target (>100umx100um). Take spot run with C-hole target with (-0.3,-1.5) position locks and 4x4 raster. verify position locks. Moved Ca target (2x2 raster), Do alignment check (Call Devi). Hand over to MCC to address Compton background issue with 150 uA beam. FFB diagnosis and production | ||
| Wed Aug 12 | Owl | Continued plan from swing shift | Beam back around 3 am. Adjusted gang phase, established FFB. Better Compton background rates. Detector alignment. production. |
| Day | Started tuning through Compton chicane. If everything goes well we will go for Compton commissioning (contact Juan Carlos/Adam). | ||
| Swing | Storm delayed commissioning into the evening. Got decent Compton background rates at ~11pm. | ||
| Thr Aug 13 | Owl | Production with 120uA (due to 10kHz background on the Compton table at 150). Run overnight. | |
| Day | Beam studies (access concurrently) 9-11. Further Compton tuning 11-1pm. Production | ||
| Swing | Production | ||
| Fri Aug 14 | Owl | PITA scan, pedestal scan (may want to look at BPMs as well). Production. | |
| Day | Potential Compton tuning (2h). Production. | ||
| Swing | Production | ||
| Sat Aug 15 | Owl | Production | |
| Day | Production. | ||
| Swing | Production | ||
| Sun Aug 16 | Owl | Production | |
| Day | Production. | ||
| Swing | Production | ||
| Mon Aug 17 | Owl | Production | |
| Day | Production | ||
| Swing | Production | ||
| Tue Aug 18 | Owl | Production | |
| Day | 4h machine setup; Production | ||
| Swing | Production | ||
| Wed Aug 19 | Owl | Production | |
| Day | Moller | Completed, online results 87.04% (IHWP IN), 87.33 % (IHWP OUT) | |
| Swing | Production | ||
| Thu Aug 20 | Owl | Production | |
| Day | Production | Accelerator is down for the later half of the shift due to NL 1L25 vacuum pump issue | |
| Swing | Production | No beam, Accelerator is down due to NL 1L25 vacuum pump issue | |
| Fri Aug 21 | Owl | Production | No beam, Accelerator is down |
| Day | Production | No beam, Accelerator is down | |
| Swing | Production | Hall C down for target work | |
| Sat Aug 22 | Owl | Production | Hall C down for target work |
| Day | Production | Hall C down for target work | |
| Swing | Production | Hall C down for target work, Put PID lock on HALLA:dpp around between 6:30-7pm. | |
| Sun Aug 23 | Owl | Production | Hall C down for target work |
| Day | Production | Hall C down for target work | |
| Swing | Production | Hall C down for target work | |
| Mon Aug 24 | Owl | Production | Hall C down for target work |
| Day | Production | Hall C down for target work | |
| Swing | Production | ||
| Tue Aug 25 | Owl | Production | |
| Day | Production, Qsq measurement | Access for LHRS VDC fix, Accelerator down for 1L13 fix, Hall C Moller measurement | |
| Swing | Production | No useful beam for production, septum trips and hard time to get Compton bg rates under control | |
| Wed Aug 26 | Owl | Production | |
| Day | Production | ||
| Swing | Production | ||
| Thu Aug 27 | Owl | Production | |
| Day | Production | ||
| Swing | Production | ||
| Fri Aug 28 | Owl | Production | |
| Day | Production | ||
| Swing | Get back to production (at new current).
0. Start by ramping(cycling) quads and septum back up to nominal values and take hall back to Beam Permit. 1. Usual checks. Beam spot size (previously around 300 um) and raster size with Spot++ on C-hole. 2. Check Compton rates at 10 muA on C-1%. Make sure HVs are correct- main detector and SAMs on and others off. 3. Establish beam current at new level on Ca48 and reset IC levels. MCC should be able to do this at request but verify that the thresholds are close (~5% above mean values). Check dpp and beam position are good. 4. Take new pedestal runs on for new current settings (list of detectors/monitors ....) 5. Ensure the lower current more than makes up for lost Coulombs by increased efficiency. |
Instructions for RC
- Let the day shift know what to do while you attend the MCC meeting
- Copy the daily run plans for the previous week to the Run plan history CREX
- Copy the Run Plan Template table to this page and change the dates
- Update the plan above (if necessary) after the MCC meeting
