Difference between revisions of "RunPlanDaily CREX"
From PREX Wiki
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(→Current Daily Run Plans) |
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| When beam is back: finish low current plans: Frame finding and centering for C-1%, Ca-40, and Ca-48; verify quartz alignment for Ca-48; do Q^2 measurements (C-1%, Ca-40, Ca-48); quartz rate study for C-1%, Ca-40, and Ca-48; Expect very similar rates for all three targets: ~700k Hz per uA T1 scalar rate | | When beam is back: finish low current plans: Frame finding and centering for C-1%, Ca-40, and Ca-48; verify quartz alignment for Ca-48; do Q^2 measurements (C-1%, Ca-40, Ca-48); quartz rate study for C-1%, Ca-40, and Ca-48; Expect very similar rates for all three targets: ~700k Hz per uA T1 scalar rate | ||
| − | | | + | | We need to know our target centers, quartz alignment, Q^2 and a focal plane rate estimate before going to high-current integration mode |
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| rowspan="3" | Wednesday, December 11 | | rowspan="3" | Wednesday, December 11 | ||
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| Swing | | Swing | ||
| − | | | + | | high-current commissioning/pre-production |
| − | | | + | | Goal is to get the beamline instrumentation ready for PQB to get a look at regression and widths, etc. (pre-production) |
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[[Run plan history CREX | <B>Previous Daily Run Plans</B>]] | [[Run plan history CREX | <B>Previous Daily Run Plans</B>]] | ||
Revision as of 11:05, 10 December 2019
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 |
|---|---|---|---|
| Wednesday, December 4 | Owl | No shift | |
| Day | Magnet work... | ||
| Swing | Magnet work...until Jack ready to leave 4-8pm. Then 5pass tuning into A. | ||
| Thursday, December 5 | Owl | 5pass tuning into A. | |
| Day | RF stress test to A/RF fixing | Burned up 3 raster power supplies (ended test at 4:15pm!) | |
| Swing | Go to 1 pass; Septum problem (only up to 400 A); collimator centering; polarity check | Set HRS tune P for this septum setting for polarity check--not conclusive | |
| Friday, December 6 | Owl | spectrometer setup did not allow target alignment checks | Beam gone at 3:40am due to Network issue |
| Day | Hall surveyed and in controlled access all day; remove diffusor at end? | Septum control software fix; compton e-det work; network issues run down; raster sync problem fixed | |
| Swing | lock up hall; reverse septum polarity; raster size and hole locations | Left arm NMR probe lock not working--will have to use Hall probe; couldn't put any beam on Ca-40 due to dump FSDs (and beam optics problem -- MOLLER quads set too high) | |
| Saturday, December 7 | Owl | Tried ion-chamber calibration, but failed; started spec commissioning | First pass optics DB looks good; started septum setting and inner edge searches. Right dipole tripped so need to redo inner edge search |
| Day | Jay re-establishes Yves nominal crex beam transport setup; re-check raster size (1.8 x 1.4 now is ~2 mm x 2 mm); new hole centers (did not change much); ion-chamber calibrations done for No target, C-1%, Ca-40, and Pb#4 (on cold ladder); resumed spec. commissioning | Found out reason for raster optics issues: Moller quads not set correctly after 5-pass backout causing wide and short raster settings that evolve to tall and narrow raster at the dump (but 2x2 at the target)... | |
| Swing | Re-did inner-edge septum scan, spot minimization chase (Sangwa, Ciprian) with quartz checkout (Devi); (call Bob) start optics commissioning | We established the preliminary 2mm x 2mm (+/-0.1mm) raster (1.8 x 1.4 MCC), but should be double checked/tweaked before going high current on Calcium | |
| Sunday, December 8 | Owl | Continued Optics commissioning: dp scans with water-cell measurements most of shift | Experts coming in: Bob, Chandan, and Siyu |
| Day | Authorize 150uA; finish optics commissioning; Followup optics studies performed: Q1 scans (-10 to -20%) at +5% septum, nominal tune "P", find best Q1 setting, then scan Q3's to effectively minimumize the FP y widths | The established tune "P" for crex gave large x/th coupling, a lack of the "bow-tie" FP theta v. phi shape, and anomalous structures in the dispersive-x FD distributions; seems to be some quad strength in the septum field that is cancelled out by lowering Q1 | |
| Swing | Established CREX tune: "tune P" with +5% septum, -17%/-15% LQ1/RQ1, -5% Q3s. Redo dp optics scan but without w-cell runs, y-target reconstruction | Right dipole tripped OFF at 10:15pm, started ramping back up at 3AM. Aborted sieve-in optics. | |
| Monday, December 9 | Owl | Took sieves out and proceeded with frame finding/quartz alignment and rate activities. Bob is working to fix left arm spot. R dipole back and stable by 6am, however N Lical went down at 5:30am due to vacuum issue(s) | Experts coming in: Bob, Chandan, and Devi |
| Day | SL shift cancelled; TO still required. Hall surveyed and in Controlled Access for opportunistic work | Compton work in the hall; Accelerator down at least until 8 AM next day and may restore beam delivery by 12pm tomorrow | |
| Swing | SL shift cancelled; TO still required | ||
| Tuesday, December 10 | Owl | SL shift cancelled; TO still required | |
| Day | Still investigating vacuum issues in the N. Linac. Spectrometers up and running smooth | Hall in Controlled Access for more Compton e-det and laser work; Hall is ready for beam. | |
| Swing | When beam is back: finish low current plans: Frame finding and centering for C-1%, Ca-40, and Ca-48; verify quartz alignment for Ca-48; do Q^2 measurements (C-1%, Ca-40, Ca-48); quartz rate study for C-1%, Ca-40, and Ca-48; Expect very similar rates for all three targets: ~700k Hz per uA T1 scalar rate | We need to know our target centers, quartz alignment, Q^2 and a focal plane rate estimate before going to high-current integration mode | |
| Wednesday, December 11 | Owl | go to high-current checkout: setup 150uA to dump no target (can do first Unser calibration here); set SAM and quartz HVs for integration mode; execute Silviu's slow thermal break-in procedure for Ca-40 (and then Ca-48). What other beam instrumentation could be checked-out during thermal break-ins? | |
| Day | high-current commissioning | When to do Compton chicane tuning? and ion chamber calibration, FFB, and BMW target out--phase advance setup and for production target. This is the preferred order | |
| Swing | high-current commissioning/pre-production | Goal is to get the beamline instrumentation ready for PQB to get a look at regression and widths, etc. (pre-production) |
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
