Difference between revisions of "Commissioning Plan 2017"
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== Target LH2/LD2 boiling study== | == Target LH2/LD2 boiling study== | ||
| − | * Experts: Eric | + | * Experts: Eric Pooser |
| − | * Expected time: | + | * Expected time: |
* Goal: Measure target boiling. | * Goal: Measure target boiling. | ||
* Conditions: Prescale to 2 kHz, cycle magnets. | * Conditions: Prescale to 2 kHz, cycle magnets. | ||
| Line 524: | Line 524: | ||
! Target || Trigger || Events per current setting || Currents | ! Target || Trigger || Events per current setting || Currents | ||
|- | |- | ||
| − | 10cm LH2 || ps1=#, rest to -1, Set # so | + | !10cm LH2 || ps1=#, rest to -1, Set # so deadtime is 20% || 2, 7, 10, 20, 30, 40, 50, 60, 65 |
|- | |- | ||
| − | 10cm LD2 || ps1=#, rest to -1, Set # so | + | !10cm LD2 || ps1=#, rest to -1, Set # so deadtime is 20% || 2, 7, 10, 20, 30, 40, 50, 60, 65 |
|- | |- | ||
| − | 0.5% carbon || ps1=#, rest to -1, Set # so | + | !0.5% carbon || ps1=#, rest to -1, Set # so deadtime is 20% || 2, 7, 10, 20, 30, 40, 50, 60, 65 |
|- | |- | ||
| − | 10 cm dummy | ps1=#, rest to -1, Set # so | + | !10 cm dummy | ps1=#, rest to -1, Set # so deadtime is 20% || 2, 7, 10, 20, 30, 40, 50, 60, 65 |
|} | |} | ||
Revision as of 17:34, 18 January 2018
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 |
- Run Plan:Documents
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, |
| SHMS angle/momentum | 15. and 22. deg, |
- 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 | -4.0 | 15. deg | -4.0 | Centered Sieve | 30 min |
| 0,+/- 10cm | 15. deg | -4.0 | 15. deg | -4.0 | Shifted Sieve | 30 min |
| +/- 5cm | 15. deg | -4.0 | 15. deg | -4.0 | Centered Sieve | 30 min |
| +/- 5cm | 15. deg | -4.0 | 15. deg | -4.0 | Shifted Sieve | 30 min |
| 0,+/- 10cm | 22. deg | -3.2 | 22. deg | -3.2 | Centered Sieve | 1.5 hr |
| 0,+/- 10cm | 22. deg | -3.2 | 22. deg | -3.2 | Shifted Sieve | 1.5 hr |
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 |
Check of ELREAL/ELCLEAN Trigger ( 1.5 hour)
- Experts: SImona
- Expected time: 1.5 hr
- Goal:
- Use threshold determined form previous LD2 running
- Sanity check of electron triggers.
- Conditions:
| beam current: | 20 μA |
|---|---|
| fast raster: | 2x2mm |
| target: | 10cm LH2 |
| 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 | Total DAQ Triggers |
|---|---|---|---|---|
| 25./-3.0 | 25./-3.0 | 10cm LH2 | Only 3/4 scin (prescale trig1=0,trig2=-1,trig3=-1) | 300K |
| 25./-3.0 | 25./-3.0 | 10cm LH2 | ELREAL (prescale trig1=-1,trig2=0,trig3=-1) | 300K |
| 25./-3.0 | 25./-3.0 | 10cm LH2 | ELCLEAN (prescale trig1=-1,trig2=-1,trig3=0) | 300K |
| 25./-1.4 | 25./-1.4 | 10cm LH2 | Only 3/4 scin (prescale trig1=0,trig2=-1,trig3=-1) | 300K |
| 25./-1.4 | 25./-1.4 | 10cm LH2 | ELREAL (prescale trig1=-1,trig2=0,trig3=-1) | 300K |
| 25./-1.4 | 25./-1.4 | 10cm LH2 | ELCLEAN (prescale trig1=-1,trig2=-1,trig3=0) | 300K |
Coincidence Checkout [9 hrs]
- Experts:
- Expected time:
- Goal:
- Conditions:
| beam current: | 20-50 μA |
|---|---|
| fast raster: | 2x2 mm2 |
| 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.
- Last run is used to evaluate accidentals.
| HMS angle | HMS momentum | SHMS angle | HMS collimator | 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 | Pion | -3.609 | Centered Sieve | 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 | Sieve | +3.609 | Collimator | 2 hr |
| 27.5 deg | -3.609 | 35.0 deg | Pion | +3.609 | Collimator | 1 hr |
Additional Large Ytar: HMS/SHMS Angle and Position Matrix Optimization (6 hours)
- Experts:
- Expected time: 6 hours.
- Goal:
- Conditions:
| beam current: | 65 μA |
|---|---|
| fast raster: | 2x2 |
| target: | optics targets |
| HMS/SHMS collimator: | Sieve , Centered Sieve |
| HMS/SHMS trigger: | 3/4 scin, 3/4 scin |
| HMS angle/momentum | 25.5,22 deg, -2.6,-3.2 GeV/c |
| SHMS angle/momentum | 30.,22 deg, -2.0,-3.2 GeV/c |
- Run Plan: Time is assuming 65uA. Take one hour long runs. Should take about 5 hours for +/-10cm data and 1 hour for +/-5cm data.
| Target | HMS angle | HMS momentum | SHMS angle | SHMS momentum | SHMS collimator | Counts |
|---|---|---|---|---|---|---|
| 0,+/- 10cm | 25. deg | -2.6 | 30. deg | -2.0 | Centered Sieve | Total of 4.0M SHMS triggers. |
| +/- 5cm | 22. deg | -3.2 | 22. deg | -3.2 | Centered Sieve | Total of 1.0M SHMS Triggers. |
Additional Coincidence Checkout [3 hr]
- Conditions:
| beam current: | 65 μA |
|---|---|
| fast raster: | 2x2 mm2 |
| target: | 10cm LH2 |
| HMS/SHMS collimator: | PION , COLLIMATOR |
| HMS/SHMS trigger: | Coincidence |
| HMS angle/momentum | Various |
| SHMS angle/momentum | Various |
- Run Plan:
- HMS is detecting electrons and SHMS is detecting protons.
- Use HMS pion collimator and SHMS collimator.
- Cycle SHMS for each change when raising momentum
| Target | Prescales | HMS angle | HMS momentum | SHMS angle | SHMS momentum | Time |
|---|---|---|---|---|---|---|
| LH2 | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 22.0 deg | -4.284 | 33.3 deg | +2.925 | 30 min (65Hz) |
| 0.5% carbon | ps1=0,ps2=-1,ps3=-1,ps4=0,ps5=-1,ps6=-1 | 22.0 deg | -4.284 | 33.3 deg | +2.925 | 10min |
| 0.5% carbon | ps1=0,ps2=-1,ps3=-1,ps4=0,ps5=-1,ps6=-1 | 35.0 deg | -2.869 | 22.0 deg | +4.38 | 10 min |
| LH2 | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 35.0 deg | -2.869 | 22.0 deg | +4.38 | 30 min (6Hz) |
| LH2 | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 50.0 deg | -1.864 | 15.3 deg | +5.41 | 1.5 hrs (0.6Hz) |
| 0.5% carbon | ps1=0,ps2=-1,ps3=-1,ps4=0,ps5=-1,ps6=-1 | 50.0 deg | -1.864 | 15.3 deg | +5.41 | 10 min |
- Run until 8am when Jay Benesch in MCC will do the beam energy measurement.
Beam Energy Measurement (3 hours)
- Experts: MCC, Jay Benesch
- Expected time: 3 hours
- Goal: Measure beam energy for elastics
- Conditions:
| beam current: | 5uA |
|---|---|
| fast raster: | off |
| target: | none |
- MCC procedure
CT Physics [53 hrs]
- Conditions:
| beam current: | 65 μA |
|---|---|
| fast raster: | 2x2 mm2 |
| target: | 10cm LH2 |
| HMS/SHMS collimator: | PION , COLLIMATOR |
| HMS/SHMS trigger: | Coincidence |
| HMS angle/momentum | Various |
| SHMS angle/momentum | Various |
- Run Plan:
- HMS is detecting electrons and SHMS is detecting protons.
- Use HMS pion collimator and SHMS collimator.
- Keep track of good coincidence physics events (with tight PID cuts and coincidence time cut) such that we have 10000 events each for LH2 and Carbon
| Target | Prescales | HMS angle | HMS momentum | SHMS angle | SHMS momentum | Time |
|---|---|---|---|---|---|---|
| LH2 | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 45.1 deg | -2.131 | 17.1 deg | +5.122 | 12 hrs |
| LH2 | ps1=0,ps2=-1,ps3=-1,ps4=0,ps5=-1,ps6=-1 | 45.1 deg | -2.131 | 17.1 deg | +5.122 | 30 min |
| Al. Dummy | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 45.1 deg | -2.131 | 17.1 deg | +5.122 | 4 hrs |
| 6% C | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 45.1 deg | -2.131 | 17.1 deg | +5.122 | 36 hrs |
| 6% C | ps1=0,ps2=-1,ps3=-1,ps4=0,ps5=-1,ps6=-1 | 45.1 deg | -2.131 | 17.1 deg | +5.122 | 30 min |
- If possible after completing the LH2 and Dummy we can move to F2 Physics program and come back to the Carbon after the F2 physics program
Target LH2/LD2 boiling study
- Experts: Eric Pooser
- Expected time:
- Goal: Measure target boiling.
- Conditions: Prescale to 2 kHz, cycle magnets.
| beam current (uA): | 2, 7, 10, 20, 30, 40, 50, 60, 65 |
|---|---|
| fast raster: | 2x2mm |
| target: | 10cm LH2, 10cm LD2, 0.5% Carbon, *Al 10 cm Dummy only at 20 and 40 muA* |
| SHMS/HMS collimator: | Collimator/PION |
| SHMS trigger: | SCIN 3/4 |
| SHMS angle/momentum: | 15 deg / -3 GeV/c |
| HMS trigger: | SCIN 3/4 |
| HMS angle/momentum: | 15 deg / -3 GeV/c |
- Run Plan:
- Set spectrometers to above settings
- For each target, do nine separate runs for each current
| Target | Trigger | Events per current setting | Currents |
|---|---|---|---|
| 10cm LH2 | ps1=#, rest to -1, Set # so deadtime is 20% | 2, 7, 10, 20, 30, 40, 50, 60, 65 | |
| 10cm LD2 | ps1=#, rest to -1, Set # so deadtime is 20% | 2, 7, 10, 20, 30, 40, 50, 60, 65 | |
| 0.5% carbon | ps1=#, rest to -1, Set # so deadtime is 20% | 2, 7, 10, 20, 30, 40, 50, 60, 65 | |
| ps1=#, rest to -1, Set # so deadtime is 20% | 2, 7, 10, 20, 30, 40, 50, 60, 65 |
F2 Physics
Program with SHMS during F2 HMS data taking
Final Checkout of SHMS ELREAL/ELCLEAN Trigger ( 3 hour)
- Experts: Eric Pooser
- Expected time: 3 hr
- Goal:
- Take data to determine thresholds.
- Sanity check of electron triggers.
- Conditions:
| beam current: | 65 μA |
|---|---|
| fast raster: | 2x2mm |
| target: | 10cm LH2 |
| SHMS collimator: | Collimator |
| SHMS trigger: | Various triggers |
| SHMS angle/momentum | 25. deg, -3.0 GeV/c, -1.4 |
- Run Plan
- First two runs at different HV to confirm gain matching. One is for pulse amps peaks at 130mV and the other for 150mV peak.
- Look at first two runs and determine correct voltages for pulse amps peak at 150mV. Set voltages for peak at 150mV.
- Take run with new HV voltages. Confirm that gain matching and check sum versus each individual tube.
- If gain match is good and NG sum looks good then proceed with trigger test.
- Take run with 3/4 and threshold at 10mV . Analyze run and determine thresholds.
- Change thresholds and take two runs. First with ELREAL only trigger and second with ELCLEAN trigger.
- Analyze results and confirm that expected efficiencies are achieved.
- Lower spectrometer momentum to -1.4 GeV to increase pi/e ratio.
- Take run with All PID thresholds at 10mV and 3/4 SCIN.
- Analyze run and determine thresholds.
- Change thresholds and take two runs. First with ELREAL only trigger and second with ELCLEAN trigger.
- Analyze results and confirm that expected efficiencies are achieved.
| SHMS angle/mom | Target | HMS/SHMS Trigger | Trigger Thresholds | NG HV (1-4) | Total DAQ Triggers |
|---|---|---|---|---|---|
| 25./-3.0 | 10cm LH2 | Only 3/4 scin (prescale trig1=0,trig2=-1,trig3=-1) | 1840,2077,1900,1806 (130mV) | All PID legs to 10mV | 300K |
| 25./-3.0 | 10cm LH2 | Only 3/4 scin (prescale trig1=0,trig2=-1,trig3=-1) | 1866,2103,1934,1825 (150mV) | All PID legs to 10mV | 300K |
| 25./-3.0 | 10cm LH2 | Only 3/4 scin (prescale trig1=0,trig2=-1,trig3=-1) | HV determined to give peak amp at 150mV | Thresholds at desired setting | 300K |
| 25./-3.0 | 10cm LH2 | Only 3/4 scin (prescale trig1=0,trig2=-1,trig3=-1) | HV determined to give peak amp at 150mV | Thresholds at desired setting | 300K |
| 25./-1.4 | 10cm LH2 | Only 3/4 scin (prescale trig1=0,trig2=-1,trig3=-1) | HV determined to give peak amp at 150mV | All PID legs to 10mV | 300K |
| 25./-1.4 | 10cm LH2 | ELREAL (prescale trig1=-1,trig2=0,trig3=-1) | HV determined to give peak amp at 150mV | Thresholds at desired setting | 300K |
| 25./-1.4 | 10cm LH2 | ELCLEAN (prescale trig1=-1,trig2=-1,trig3=0) | HV determined to give peak amp at 150mV | Thresholds at desired setting | 300K |
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:
SHMS Elastic Single arm Checkout Additional angles (4 hours)
- Experts:
- Expected time:
- Goal:
- Conditions:
| beam current: | 65uA |
|---|---|
| fast raster: | 2x2mm2 |
| target: | 0.5% carbon, 10cm LH2 |
| SHMS collimator: | PION , COLLIMATOR |
| SHMS trigger: | SCIN 3/4, SCIN 3/4 |
| SHMS angle/momentum | 16,20 ,30,35 deg / 5.074,4.522,3.349,2.869 GeV |
- Run plan
- Take 15 min run with 0.5% carbon. Run LH2 for 10,000 events in elastic W for SHMS at 16 deg.
- Take 15 min run with 0.5% carbon. Run for 10,000 events in elastic W for SHMS at 20 deg
- Take 15 min run with 0.5% carbon. Run for 10,000 events in elastic W for SHMS at 30 deg
- Take 15 min run with 0.5% carbon. Run for 10,000 events in elastic W for SHMS at 35 deg
Lower priority
BCM Calibration ( 1 hour)
- Have done a set of data. Need to analyze and confirm it is enough.
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 |
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 |
