Difference between revisions of "CREX Detailed High current plan"
From PREX Wiki
Jump to navigationJump to search| Line 14: | Line 14: | ||
#* verify compton rates | #* verify compton rates | ||
#<font color=blue> Ramp to SAM Shutter test </font> | #<font color=blue> Ramp to SAM Shutter test </font> | ||
| − | # | + | #* Insert Lead Target. |
| − | + | #* Raster 10x10. | |
| − | + | #* 20 nA. ''(Atten 107, slit 15)'' | |
| − | + | #* Cav locks on | |
| − | + | #* spot++ verify not seeing edges | |
| − | + | #* Set raster ?x? ''(to get (x.y) = 4x6 real)'' | |
| − | + | # Go up in current 1uA (5min) | |
| − | + | #* All HV off in HRS hut | |
| − | + | #* Target lock ''(0.6mm, 0.4mm)'' -> (-0.3, -0.5) is collimator hole center for CREX | |
| − | + | #* Collimator water temp | |
| − | + | #* Beamline temperatures | |
| − | + | #* Ion chamber (stability) | |
| − | + | #* SAM yields | |
| − | + | #* BCM and BPM yields, widths. | |
#<font color=blue> Aaccess to remove SAM shutters, detector to integrate mode.</font> | #<font color=blue> Aaccess to remove SAM shutters, detector to integrate mode.</font> | ||
#<font color=blue> Ramp to High current test. </font> | #<font color=blue> Ramp to High current test. </font> | ||
| − | + | #* Cavity bpm back to high current mode | |
| − | + | #* All HV off in HRS hut, except quartz | |
| − | + | #* Target lock ''(0.6mm, 0.4mm)'' | |
| − | + | # 20uA (review) (10min) | |
| − | + | #* Target lock, FFB (monitor bpm Saturation) | |
| − | + | #* Collimator water temp | |
| − | + | #* Beamline temperatures | |
| − | + | #* Ion chamber (stability) | |
| − | + | #* SAM and DET yields and widths | |
| − | + | #* BCM and BPM yields, widths. | |
| − | + | # 100uA (review) (10min) | |
| − | + | #* Target lock, FFB (monitor bpm SAT) | |
| − | + | #* Collimator water temp | |
| − | + | #* beamline temperatures | |
| − | + | #* Ion chamber (stability) | |
| − | + | #* SAM and DET yields and widths | |
| − | + | #* BCM and BPM yields, widths. | |
| − | + | # 150A(1hr) | |
| − | + | #* Target lock, FFB (monitor bpm SAT) | |
| − | + | #* Aq feedback | |
| − | + | #* Collimator water temp | |
| − | + | #* beamline temperatures | |
| − | + | #* Ion chamber (stability) | |
| − | + | #* SAM and DET yields and widths | |
| − | + | #* BCM and BPM yields, widths. | |
#<font color=blue>Calibration scan, see [[Detailed_Calibration_plan|Calibration Plan]]</font> | #<font color=blue>Calibration scan, see [[Detailed_Calibration_plan|Calibration Plan]]</font> | ||
| − | + | #* FFB ON | |
| − | + | #* To 150 uA | |
| − | + | #* SAMs HVs set | |
| − | + | #* DETs HVs set | |
| − | + | #* PITA scan at end to check det linearities later | |
#<font color=blue>BMW </font> | #<font color=blue>BMW </font> | ||
| − | + | #* Tune beam, slow lock on (ad FFB on?), exercise BMW, check no ion chamber trips, check pauses locks and FFB | |
| − | + | #* Low current 2-3uA, exercise BMW, check BPM signals, check no ion chamber issues | |
| − | + | #* Target in, low current 2-3uA,exercise BMW, check BPM signals, check no ion chamber issues | |
| − | + | #* "Ready for high current" | |
Revision as of 13:33, 8 December 2019
PREX version, CREX Calibration Plan, CREX Production Plan
Beamline instrumentation calibration - All copied from PREX, updated to CREX numbers
- Check detector alignment and pulse height (Done)
- 1uA Hall A Target BPM lock (with Cavities if required, probably not)
- 0.2% Carbon
- 20 nA, cavity locks on and cavities in low current mode
- VDC on.
- Check rates, verify pulse height spectra and alignment
- Modify DAQ to include GEMS. 10 minute run with GEMS.
- C-Hole target, verify spot (Done)
- 20 nA, spot ++ verify raster size
- harp scan 4e, verify intrinsic size at target
- High current - no target (Skip it tonight)
- verify compton rates
- Ramp to SAM Shutter test
- Insert Lead Target.
- Raster 10x10.
- 20 nA. (Atten 107, slit 15)
- Cav locks on
- spot++ verify not seeing edges
- Set raster ?x? (to get (x.y) = 4x6 real)
- Go up in current 1uA (5min)
- All HV off in HRS hut
- Target lock (0.6mm, 0.4mm) -> (-0.3, -0.5) is collimator hole center for CREX
- Collimator water temp
- Beamline temperatures
- Ion chamber (stability)
- SAM yields
- BCM and BPM yields, widths.
- Aaccess to remove SAM shutters, detector to integrate mode.
- Ramp to High current test.
- Cavity bpm back to high current mode
- All HV off in HRS hut, except quartz
- Target lock (0.6mm, 0.4mm)
- 20uA (review) (10min)
- Target lock, FFB (monitor bpm Saturation)
- Collimator water temp
- Beamline temperatures
- Ion chamber (stability)
- SAM and DET yields and widths
- BCM and BPM yields, widths.
- 100uA (review) (10min)
- Target lock, FFB (monitor bpm SAT)
- Collimator water temp
- beamline temperatures
- Ion chamber (stability)
- SAM and DET yields and widths
- BCM and BPM yields, widths.
- 150A(1hr)
- Target lock, FFB (monitor bpm SAT)
- Aq feedback
- Collimator water temp
- beamline temperatures
- Ion chamber (stability)
- SAM and DET yields and widths
- BCM and BPM yields, widths.
- Calibration scan, see Calibration Plan
- FFB ON
- To 150 uA
- SAMs HVs set
- DETs HVs set
- PITA scan at end to check det linearities later
- BMW
- Tune beam, slow lock on (ad FFB on?), exercise BMW, check no ion chamber trips, check pauses locks and FFB
- Low current 2-3uA, exercise BMW, check BPM signals, check no ion chamber issues
- Target in, low current 2-3uA,exercise BMW, check BPM signals, check no ion chamber issues
- "Ready for high current"
