Commissioning Plan 2017

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Revision as of 18:52, 13 January 2018 by Jones (Talk | contribs) (Coincidence Checkout [16 hrs])

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Beam energy of 2.2 GeV

Beam energy of 6.4 GeV

Initial conditions

  • HMS/SHMS Conditions:
HMS/SHMS collimator: PION , COLLIMATOR
HMS/SHMS trigger: SCIN 3/4, SCIN 3/4
HMS angle/momentum 15 deg, -3.0 GeV/c
SHMS angle/momentum 15 deg, -3.0 GeV/c

Beam Checkout with Superharps and Beam Position Monitors (3 hours)

  • Experts: Mark Jones, Deb Biswas, Thir Guatam
  • Expected time: 3 hours
  • Goals: Initial measurement of beam spot size. Followed by calibration of girder BPMs at 5,30 and 60uA. Measure raster size with superharps.
  • Conditions:
beam current: 5,30 and 60 μA
fast raster: off
target: none
  • Runplan: pdf file
  • Ask MCC to do superharp scan with superharps IHA3H07A and IHA3H07B and put entry in ELOG. Record the 3 BPMs positions (3H07A,3H07B,3H07C) during scan.
    • Want beam spot with sigma_x and sigma_y below 200 um ( beam pass 1-4) and below 300 um for beam pass 5.
  • Verify Girder BPM position to Harp positions.

Center beam on C-hole target ( 1 hour)

  • Experts:
  • Expected time: 1 hour
  • Goal: Center beam on carbon hole target
  • Conditions:
beam current: 5 μA
fast raster: 3x3mm
target: carbon hole
HMS/SHMS collimator: PION , COLLIMATOR
HMS/SHMS trigger: SCIN 3/4, SCIN 3/4
HMS angle/momentum 15 deg, -3.0 GeV/c
SHMS angle/momentum 15 deg, -3.0 GeV/c
  • Run plan: Procedure
  • Once hole is found, take 20 minutes run at 20uA for good statistics

Detailed Detector Checkout ( 2 hour)

  • Experts:
  • Expected time: 2 hour
  • Prerequisite: Eric Pooser will do invasive checkout of HMS/SHMS trigger with beam.
  • Conditions:
beam current: 20 μA
fast raster: off
target: 0.5% carbon
HMS/SHMS collimator: PION , COLLIMATOR
HMS/SHMS trigger: SCIN 3/4,SCIN 3/4
HMS angle/momentum 15 deg, -3.0 GeV/c
SHMS angle/momentum 15 deg, -3.0 GeV/c

Trigger

  • Set HMS/SHMS trigger threshold for PID trigger section to 10 mV.
  • Software cuts can be placed on trigger ADC data to study efficiencies.

Cerenkov

  • SHMS Noble Gas Run Plan: Scan of HV ( Eric Pooser)
Run 1 HV Settings: PMT1 = 2200 V, PMT2 = 2230 V, PMT3 = 2115, PMT4 = 2030
Run 2 HV Settings: PMT1 = 2300 V, PMT2 = 2320 V, PMT3 = 2215, PMT4 = 2130
    • These are the spring 2017 KPP HV settings for reference: NGC1 : 2255 V, NGC2 : 2280 V, NGC3 : 2165 V, NGC4 : 2087 V
    • We will also need to check the NGCER sum the PID trigger circuit to ensure that we are not saturating the FADC channel
  • Run plan (series of 15 minutes runs)
Run HMS DAQ SHMS DAQ Comments
1 No data taking Only 3/4 scin trigger Checkout of HMS 3/4 trigger ; SHMS NGC HV NGC1 : 2255 V, NGC2 : 2280 V, NGC3 : 2165 V, NGC4 : 2087 V
2 Only 3/4 scin trigger No data taking Checkout of SHMS 3/4 trigger
3 Only 3/4 scin trigger Only 3/4 scin trigger Checkout of HMS ELCLEAN/ELREAL trigger; SHMS NGC HV PMT1 = 2200 V, PMT2 = 2230 V, PMT3 = 2115, PMT4 = 2030
4 Only 3/4 scin trigger Only 3/4 scin trigger Checkout of HMS ELCLEAN/ELREAL trigger ; SHMS NGC HV PMT1 = 2300 V, PMT2 = 2320 V, PMT3 = 2215, PMT4 = 2130
5 Only ELCLEAN trigger Only 3/4 scin trigger Checkout of SHMS ELCLEAN/ELREAL trigger
6 Only ELREAL trigger Only 3/4 scin trigger Checkout of SHMS ELCLEAN/ELREAL trigger
7 ELREAL trigger, prescale 3/4 SCIN Only ELCLEAN
8 ELCLEAN trigger, prescale 3/4 SCIN Only ELREAL
9 ELCLEAN trigger, different prescale 3/4 SCIN ELREAL, prescale 3/4 scin

Checkout of SHMS/HMS focal plane tune ( 1 hour)

  • Experts:
  • Expected time: 1 hour
  • Goal: Look at focal plane with sieve to check tune
  • Conditions:
beam current: 20 μA
fast raster: off
target: 0.5% carbon
HMS/SHMS collimator: SIEVE , Centered sieve
HMS/SHMS trigger: SCIN 3/4,SCIN 3/4
HMS angle/momentum 15 deg, -3.0 GeV/c
SHMS angle/momentum 15 deg, -3.0 GeV/c

Different Pi/e ratios ( 1.5 hour)

  • Experts: SImona
  • Expected time: 1.5 hr
  • Goal:
    • Runs with different central momentum and different pi/e ratios.
    • Two runs with LH2 and one with LD2
    • Take each setting with only 3/4 scin trigger and for 30 minutes
    • Set PID tirgger thresholds to 10 mV. Offline will determine thresholds to test later.
  • Conditions:
beam current: 5-20 μA
fast raster: 2x2mm
target: 10cm LH2, 10cm LD2
HMS/SHMS collimator: Pion/Collimator
HMS/SHMS trigger: SCIN 3/4 / SCIN 3/4
SHMS/HMS angle/momentum 25. deg, -3.0 GeV/c, -1.4
  • Run Plan
HMS angle/mom SHMS angle/mom Target HMS/SHMS Trigger
25./-3.0 25./-3.0 10cm LH2 Only 3/4 scin
25./-1.4 25./-1.4 10cm LH2 Only 3/4 scin
25./-1.4 25./-1.4 10cm LD2 Only 3/4 scin

Defocused Tune for SHMS/HMS ( 1 hour)

  • Experts: Hamlet
  • Expected time: 1 hr
  • Goal: Have a wider y_fp to calibrate the calorimeter over regions that are not usually hit with the standard hourglass tune.
  • Conditions:
beam current: 5-20 μA
fast raster: 2x2mm
target: 10cm LH2
HMS/SHMS collimator: Pion/Collimator
HMS/SHMS trigger: SCIN 3/4 / SCIN 3/4
SHMS/HMS angle/momentum 25. deg, -3.0 GeV/c, Q2 at 1.2 times normal

Elastic p(ep) Checkout Small angle (2 hours)

  • Experts:
  • Expected time:
  • Goal:
  • Conditions:
beam current: 10 μA
fast raster: 1x1mm2
target: 10cm LH2
HMS/SHMS collimator: PION , COLLIMATOR
HMS/SHMS trigger: SCIN 3/4, SCIN 3/4
HMS angle/momentum 13.5/16. deg / 5.398/5.074 GeV
SHMS angle/momentum 8.,10.,13.5 deg / 6.017,5.814,5.398 GeV
  • Run plan
HMS Angle/Mom HMS rate SHMS Angle/Mom SHMS rate Run time
13.5/5.398 300 8./6.017 3300 Hz 15 minutes
13.5/5.398 300 10./5.817 1000 30 minutes
16.0/5.074 100 13.5/5.398 150 60 minutes

HMS/SHMS Angle and Position Matrix Optimization (5 hours)

  • Experts:
  • Expected time: 5 hours.
  • Goal:
  • Conditions:
beam current: 20 μA ( more is better)
fast raster: off
target: optics targets
HMS/SHMS collimator: Sieve , Centered/Shifted Sieve
HMS/SHMS trigger: 3/4 scin, 3/4 scin
HMS angle/momentum 15 and 22. deg, -3.5 GeV/c
SHMS angle/momentum 15. and 22. deg, -2.8 GeV/c
  • Series of runs changing target.
    • SHMS has two sieves with the holes shifted in the horizontal.
    • HMS has only one sieve which will always be used.
    • No raster.
    • Time is assuming 20uA.
Target HMS angle HMS momentum SHMS angle SHMS momentum SHMS collimator Time
0,+/- 10cm 15. deg 3.5 15. deg 3.5 Centered Sieve 30 min
0,+/- 10cm 15. deg 3.5 15. deg 3.5 Shifted Sieve 30 min
+/- 5cm 15. deg 3.5 15. deg 3.5 Centered Sieve 30 min
+/- 5cm 15. deg 3.5 15. deg 3.5 Shifted Sieve 30 min
0,+/- 10cm 22. deg 2.8 22. deg 2.8 Centered Sieve 1.5 hr
0,+/- 10cm 22. deg 2.8 22. deg 2.8 Shifted Sieve 1.5 hr

Check of ELREAL/ELCLEAN Trigger ( 1.0 hour)

  • Experts: SImona
  • Expected time: 1.0 hr
  • Goal:
    • Use threshold determined form previous LD2 running
    • Sanity check of electron triggers.
  • Conditions:
beam current: 5-20 μA
fast raster: 2x2mm
target: 10cm LD2
HMS/SHMS collimator: Pion/Collimator
HMS/SHMS trigger: Electron triggers
SHMS/HMS angle/momentum 25. deg, -3.0 GeV/c, -1.4
  • Run Plan
HMS angle/mom SHMS angle/mom Target HMS/SHMS Trigger
25./-1.4 25./-1.4 10cm LD2 ELREAL
25./-1.4 25./-1.4 10cm LD2 ELCLEAN

Elastic p(ep) Checkout Larger angle (5 hours)

  • Experts:
  • Expected time:
  • Goal:
  • Conditions:
beam current: 20 μA or more
fast raster: 1x1mm2
target: 10cm LH2
HMS/SHMS collimator: PION , COLLIMATOR
HMS/SHMS trigger: SCIN 3/4, SCIN 3/4
HMS angle/momentum 16,20 deg / 5.074,4.522 GeV
SHMS angle/momentum 16,20 deg / 5.074,4.522 GeV

Coincidence Checkout [8 hrs]

  • Experts:
  • Expected time:
  • Goal:
  • Conditions:
beam current: 20-50 μA
fast raster: 1x1mm2
target: 10cm LH2
HMS/SHMS collimator: PION/SIEVE , COLLIMATOR/CENTERED SIEVE
HMS/SHMS trigger: SCIN 3/4, SCIN 3/4
HMS angle/momentum 27.5 deg, -3.609 GeV/c
SHMS angle/momentum 27.5 deg, +3.609 GeV/c
  • Series of runs with/without collimator on electron side and switch polarities between HMS/SHMS
HMS angle HMS momentum HMS collimator SHMS angle SHMS momentum SHMS collimator Time
27.5 deg -3.609 27.5 deg Pion +3.609 Collimator 30 min (4Hz at 20uA)
27.5 deg -3.609 27.5 deg Sieve +3.609 Collimator 2 hr
27.5 deg +3.609 27.5 deg Pion -3.609 Collimator 30 min (4Hz at 20uA)
27.5 deg +3.609 27.5 deg Pion -3.609 Centered Sieve 2 hr

Elastic p(ep) Checkout Additional angles (2 hours)

  • Experts:
  • Expected time:
  • Goal:
  • Conditions:
beam current: 20 μA or more
fast raster: 1x1mm2
target: 10cm LH2
HMS/SHMS collimator: PION , COLLIMATOR
HMS/SHMS trigger: SCIN 3/4, SCIN 3/4
HMS angle/momentum 30,35 deg / 3.349,2.869 GeV
SHMS angle/momentum 30,35 deg / 3.349,2.869 GeV

Large Ytar: HMS/SHMS Angle and Position Matrix Optimization (9 hours)

  • Experts:
  • Expected time: 9 hours.
  • Goal:
  • Conditions:
beam current: 20 μA
fast raster: off
target: optics targets
HMS/SHMS collimator: Sieve , Centered Sieve
HMS/SHMS trigger: 3/4 scin, 3/4 scin
HMS angle/momentum 30. deg, -2.0 GeV/c
SHMS angle/momentum 30. deg, -2.0 GeV/c

Beam Energy Measurement (3 hours)

  • Experts: MCC,Mark Jones, Dave Mack
  • Expected time: 3 hours
  • Goal: Measure beam energy for elastics
  • Conditions:
beam current: 5uA
fast raster: off
target: none
  • MCC procedure


Target LH2/LD2 boiling study (3.0 hours)

  • Experts: Eric Christy
  • Expected time: 3.0 hours
  • Goal: Measure target boiling.
  • Conditions: Prescale to 2 kHz, cycle magnets. Each current a ten minute run.
beam current (uA): 1, 3, 5, 7, 10, 12, 15, 17, 20 , max current
fast raster: 3x3mm
target: 10cm LH2, 10cm LD2, 0.5% Carbon
SHMS/HMS collimator: PION
SHMS/HMS trigger: SCIN 3/4
SHMS/HMS angle/momentum

BCM Calibration ( 1 hour)

  • Experts: Eric Christy
  • Expected time: 1 hour
  • Goal: BCM Calibration data including low currents to look at non-linearities
  • Conditions: Slit closed for zero current
  • Procedure: Ask MCC to ramp up and then down covering the currents below with alternating on/off and 2 minutes at each current
beam currents (uA): 0, 1, 0, 3, 0, 5, 0, 7, 0, 10, 0, 12, 0, 15, 0, 17, 0, max current
fast raster: off
target: 0.5% Carbon
HMS angle
HMS momentum

12C(eep) [3 hr]

  • Experts:
  • Expected time:
  • Goal:
  • Conditions:
beam current: 20-50 μA
fast raster: 1x1mm2
target: 3% carbon, 10cm LH2
HMS/SHMS collimator: PION , COLLIMATOR
HMS/SHMS trigger: SCIN 3/4, SCIN 3/4
HMS angle/momentum 27.5 deg, -3.609 GeV/c
SHMS angle/momentum 27.5 deg, +3.609 GeV/c

1H or 12C(e, e’ π) [2 hr]

  • Experts:
  • Expected time:
  • Goal:
  • Conditions:
beam current: 20-50 μA
fast raster: 1x1mm2
target: 3% carbon, 10cm LH2
HMS/SHMS collimator: PION , COLLIMATOR
HMS/SHMS trigger: SCIN 3/4, SCIN 3/4
HMS angle/momentum 16.8 deg, -3.8 GeV/c
SHMS angle/momentum 20.0 deg, +2.7 GeV/c

1H(e’K) and 1H(e, e’K) [3 hr]

  • Experts:
  • Expected time:
  • Goal:
  • Conditions:
beam current: 20-50 μA
fast raster: 1x1mm2
target: 10cm LH2
HMS/SHMS collimator: PION , COLLIMATOR
HMS/SHMS trigger: SCIN 3/4, SCIN 3/4
HMS angle/momentum 25.0 deg, -2.6 GeV/c
SHMS angle/momentum 15.0 deg, +3.6 GeV/c

Use GEM to check out SHMS optics

  • Experts:
  • Expected time:
  • Goal:
  • Conditions:
beam current: <1 μA
fast raster: off
target: optics targets
SHMS collimator: Collimator
SHMS trigger: 3/4 Scin + Cer
SHMS angle/momentum 25. deg, -2.0 GeV/c
  • Run Plan:

Check spectrometer pointing

  • Experts:
  • Expected time:
  • Goal: Measure the HMS/SHMS spectrometer pointing
  • Conditions:
beam current: 20-50 μA
fast raster: off
target: 3% carbon
HMS/SHMS collimator: Sieve, Centered sieve
HMS/SHMS trigger: ,
HMS angle/momentum 12.-60 deg, -3.0 GeV/c
SHMS angle/momentum 7.5-40 deg, -3.0 GeV/c

Beam energy of 8.8 GeV

Beam Energy Measurement

  • Experts: MCC,Mark Jones, Dave Mack
  • Expected time: ? hours
  • Goal: Measure beam energy for carbon elastics.
  • Conditions:
beam current: 5uA
fast raster: off
target: none
  • MCC procedure

SHMS Tune Verification

  • Experts:
  • Expected time:
  • Goal:
  • Conditions:
beam current: 5-20 μA
fast raster: off
target: 3% carbon
HMS/SHMS collimator: PION , COLLIMATOR
HMS/SHMS trigger: SCIN 3/4, SCIN 3/4
HMS angle/momentum
SHMS angle/momentum

1H(eep)

Beam energy of 10.6 GeV

Beam Energy Measurement

  • Experts: MCC,Mark Jones, Dave Mack
  • Expected time: ? hours
  • Goal: Measure beam energy for carbon elastics.
  • Conditions:
beam current: 5uA
fast raster: off
target: none
  • MCC procedure

1H(eep)

SHMS Tune Verification

  • Experts:
  • Expected time:
  • Goal:
  • Conditions:
beam current: 5-20 μA
fast raster: off
target: 3% carbon
HMS/SHMS collimator: PION , COLLIMATOR
HMS/SHMS trigger: SCIN 3/4, SCIN 3/4
HMS angle/momentum
SHMS angle/momentum