Difference between revisions of "CREX Detailed Calibration plan"

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(Created page with "== Beamline instrumentation calibration == # <font color="blue"> Check the following has been performed</font> #* 50uA-70uA beam current, through Compton (backgrounds on fin...")
 
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== Beamline instrumentation calibration ==
 
== Beamline instrumentation calibration ==
  
−
# <font color="blue"> Check the following has been performed</font>  
+
# <font color="blue"> Check that the following have been performed</font>  
−
#* 50uA-70uA beam current, through Compton (backgrounds on fingers and Compton photon detector) with no target  
+
#* 150uA beam current, through Compton (backgrounds on fingers and Compton photon detector) with no target  
−
#* Establish 4x4 raster. Insert lead target. (low current, ramp up. check collimator water, vary raster size 4x6?)
+
#* Establish 2x2 (actual) raster. Insert Production Test target (ask Experts which one, probably Ca48). (low current, then ramp up. check collimator water, vary raster size?)
−
#* Set Detector and SAM voltages (Dustin M)  
+
#* Set Detector and SAM voltages as needed with these target rates (Dustin M, Devi A)  
 
#<font color="blue"> Check Conditions OK</font>  
 
#<font color="blue"> Check Conditions OK</font>  
−
#*collimator water
+
#*Collimator water
−
#*thermocouple temperatures
+
#*Thermocouple temperatures
−
#*radiation monitors
+
#*Radiation monitors
−
#*ion chamber stability
+
#*Ion chamber stability
−
# <font color="blue"> Setup Locks (these are necessary for main detectors and SAM calibration)</font>  
+
# <font color="blue"> Set up Locks (these are necessary for main detectors and SAM calibration)</font>  
 
#*Slow Target Lock on 4A, 4E (jmenu->"slow locks"-> Orbit Locks Expanded View -> HallATGT)
 
#*Slow Target Lock on 4A, 4E (jmenu->"slow locks"-> Orbit Locks Expanded View -> HallATGT)
−
#* Fast feedback for HallA on (iocse9)
+
#* Fast feedback for HallA on (iocse9) -> If it has been properly commissioned by OPS already, otherwise it can be done later
 
#* If beam is going through Compton, HallAComLock should probably be on
 
#* If beam is going through Compton, HallAComLock should probably be on
−
#* Should HallAMolLock be on?
+
#* Should HallAMolLock be on? -> No!
 
#<font color="blue">Coordinate</font>  
 
#<font color="blue">Coordinate</font>  
−
#* Should Compton and Moller DAQ be running during calibration?
+
#* Should Compton and Moller DAQ be running during calibration? -> Not necessarily, unless experts are around/Going through Compton/Spin Dance/Compton set up time.
 
#* Dustin and Devi examining SAMs and Detectors with online analyzer during calibration
 
#* Dustin and Devi examining SAMs and Detectors with online analyzer during calibration
−
#* Juan Carlos/Amali/Adam monitor Compton background rates and run the DAQ?
+
#* Juan Carlos/Amali/Adam monitor Compton background rates and run the DAQ
 
#* Ye puts Cavity BPMs in high current mode (opsl01 -> menubar->EDM->BPM->BPM Diagnostics DR(12GeV)->HallA BCMs B,C,D -> button -> Expert Controls -> HWReg button -> DACSL1 = 0x1 / 0x1  and DACSL2 = 0x1 / 0x1 -> back out to previous screen XVGA2 = 0 and YVGA2 =0 (for low current do 0x0 and VGA2=30). Do for all 3 BPM Cavs.  
 
#* Ye puts Cavity BPMs in high current mode (opsl01 -> menubar->EDM->BPM->BPM Diagnostics DR(12GeV)->HallA BCMs B,C,D -> button -> Expert Controls -> HWReg button -> DACSL1 = 0x1 / 0x1  and DACSL2 = 0x1 / 0x1 -> back out to previous screen XVGA2 = 0 and YVGA2 =0 (for low current do 0x0 and VGA2=30). Do for all 3 BPM Cavs.  
 
# <font color="blue"> Calibration Procedure A: with UNSER</font>  
 
# <font color="blue"> Calibration Procedure A: with UNSER</font>  
−
#*start at 70uA for 1min (scandata1==value in BCM0l02)
+
#* Start at 150 uA for 1min (scandata1==value in BCM0l02)
−
#*beam off
+
#* Beam off
−
#*wait for 5sec(for unser to equilibrate), take unser pedestal data point for 30sec (scandata1=0)
+
#* Wait for 5sec(for unser to equilibrate), take unser pedestal data point for 30sec (scandata1=0)
−
#*beam on at 75uA
+
#* Beam on at 140 uA
−
#*check slow target lock is in position
+
#* Check slow target lock is in position
−
#*check FFB on for HallA
+
#* Check FFB on for HallA
−
#*check no bpms are saturated on iocse9
+
#* Check no bpms are saturated on iocse9
−
#*wait for 5sec(for unser to equilibrate), take next data point for 1min  
+
#* Wait for 5sec(for unser to equilibrate), take next data point for 1min  
−
#*repeat for 65uA,60uA,55uA,50uA,40uA,30uA,20uA,10uA
+
#* Repeat for 130 uA, 120 uA, 110 uA, 100 uA, 90 uA, 80 uA, 70 uA, 60 uA, 50 uA, 40 uA, 30 uA, 20 uA (check resolution to see how low we can go)
 
# <font color="blue"> Calibration Procedure B: with pre-calibrated Hall BCM (analog upstream bcm)</font>  
 
# <font color="blue"> Calibration Procedure B: with pre-calibrated Hall BCM (analog upstream bcm)</font>  
−
#*start at 70uA for 1min (scandata1==value in BCM0l02)
+
#* Start at 150 uA for 1min (scandata1==value in BCM0l02)
−
#*change current to 75uA
+
#* Change current to 140 uA
−
#*check slow target lock is in position
+
#* Check slow target lock is in position
−
#*check FFB on for HallA
+
#* Check FFB on for HallA
−
#*check no bpms are saturated on iocse9
+
#* Check no bpms are saturated on iocse9
−
#*take next 1min data point
+
#* Take next 1min data point
−
#*repeat for 65uA,60uA,55uA,50uA,40uA,30uA,20uA,10uA
+
#* Repeat for 130 uA, 120 uA, 110 uA, 100 uA, 90 uA, 80 uA, 70 uA, 60 uA, 50 uA, 40 uA, 30 uA, 20 uA (check resolution to see how low we can go)
 
# <font color="blue"> Calibration Procedure C: for BPMs (Compton bpms not yet calibrated)</font>  
 
# <font color="blue"> Calibration Procedure C: for BPMs (Compton bpms not yet calibrated)</font>  
−
#*at 70uA, set gains off for iocse9,iocse10 (Hall) iocse11,iocse12,iocse19,iocinse4 (Inj)
+
#* At 150uA, set gains off for iocse9,iocse10 (Hall) iocse11,iocse12,iocse19,iocinse4 (Inj)
−
#*perform Calibration Procedure B with pre-calibrated Hall BCM
+
#* Perform Calibration Procedure B with pre-calibrated Hall BCM
 +
# <font color="blue">PITA Scan</font>
 +
#* Verify all calibrations with a PITA scan

Revision as of 13:12, 8 December 2019

Beamline instrumentation calibration

  1. Check that the following have been performed
    • 150uA beam current, through Compton (backgrounds on fingers and Compton photon detector) with no target
    • Establish 2x2 (actual) raster. Insert Production Test target (ask Experts which one, probably Ca48). (low current, then ramp up. check collimator water, vary raster size?)
    • Set Detector and SAM voltages as needed with these target rates (Dustin M, Devi A)
  2. Check Conditions OK
    • Collimator water
    • Thermocouple temperatures
    • Radiation monitors
    • Ion chamber stability
  3. Set up Locks (these are necessary for main detectors and SAM calibration)
    • Slow Target Lock on 4A, 4E (jmenu->"slow locks"-> Orbit Locks Expanded View -> HallATGT)
    • Fast feedback for HallA on (iocse9) -> If it has been properly commissioned by OPS already, otherwise it can be done later
    • If beam is going through Compton, HallAComLock should probably be on
    • Should HallAMolLock be on? -> No!
  4. Coordinate
    • Should Compton and Moller DAQ be running during calibration? -> Not necessarily, unless experts are around/Going through Compton/Spin Dance/Compton set up time.
    • Dustin and Devi examining SAMs and Detectors with online analyzer during calibration
    • Juan Carlos/Amali/Adam monitor Compton background rates and run the DAQ
    • Ye puts Cavity BPMs in high current mode (opsl01 -> menubar->EDM->BPM->BPM Diagnostics DR(12GeV)->HallA BCMs B,C,D -> button -> Expert Controls -> HWReg button -> DACSL1 = 0x1 / 0x1 and DACSL2 = 0x1 / 0x1 -> back out to previous screen XVGA2 = 0 and YVGA2 =0 (for low current do 0x0 and VGA2=30). Do for all 3 BPM Cavs.
  5. Calibration Procedure A: with UNSER
    • Start at 150 uA for 1min (scandata1==value in BCM0l02)
    • Beam off
    • Wait for 5sec(for unser to equilibrate), take unser pedestal data point for 30sec (scandata1=0)
    • Beam on at 140 uA
    • Check slow target lock is in position
    • Check FFB on for HallA
    • Check no bpms are saturated on iocse9
    • Wait for 5sec(for unser to equilibrate), take next data point for 1min
    • Repeat for 130 uA, 120 uA, 110 uA, 100 uA, 90 uA, 80 uA, 70 uA, 60 uA, 50 uA, 40 uA, 30 uA, 20 uA (check resolution to see how low we can go)
  6. Calibration Procedure B: with pre-calibrated Hall BCM (analog upstream bcm)
    • Start at 150 uA for 1min (scandata1==value in BCM0l02)
    • Change current to 140 uA
    • Check slow target lock is in position
    • Check FFB on for HallA
    • Check no bpms are saturated on iocse9
    • Take next 1min data point
    • Repeat for 130 uA, 120 uA, 110 uA, 100 uA, 90 uA, 80 uA, 70 uA, 60 uA, 50 uA, 40 uA, 30 uA, 20 uA (check resolution to see how low we can go)
  7. Calibration Procedure C: for BPMs (Compton bpms not yet calibrated)
    • At 150uA, set gains off for iocse9,iocse10 (Hall) iocse11,iocse12,iocse19,iocinse4 (Inj)
    • Perform Calibration Procedure B with pre-calibrated Hall BCM
  8. PITA Scan
    • Verify all calibrations with a PITA scan
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