CREX Detailed High current plan

PREX version, CREX Calibration Plan, CREX Production Plan

Beamline instrumentation calibration - All copied from PREX, updated to CREX numbers

1. 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.
2. C-Hole target, verify spot (Done)
   • 20 nA, spot ++ verify raster size
   • harp scan 4e, verify intrinsic size at target
3. High current - no target (Skip it tonight)
   • verify compton rates
4. 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)
5. 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.
6. Aaccess to remove SAM shutters, detector to integrate mode.
7. 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)
8. 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.
9. 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.
10. 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.
11. 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
12. 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"