Difference between revisions of "Commissioning Plan 2017"

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m (Beam Energy Measurement (3 hours))
(Beam energy of 2.2 GeV)
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= Beam energy of 2.2 GeV =
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=[[Hall C One pass commissioning plan | Beam energy of 2.2 GeV ]]=
 
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== Initial conditions ==
+
* HMS/SHMS angle surveys.
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* Beamline BPM and Harp surveys. Check offsets in MCC database.
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* HMS/SHMS Conditions:
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{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
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|-
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! HMS/SHMS collimator: || PION , COLLIMATOR
+
|-
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! HMS/SHMS trigger: || SCIN 3/4, SCIN 3/4
+
|-
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! HMS angle/momentum  || 25 deg, -1.6 GeV/c
+
|-
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! SHMS angle/momentum  || 25 deg, -1.6 GeV/c
+
|}
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* Run 2.2 GeV beam four 4 days and switch to 3 pass.
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* Run 6.4 GeV beam  and switch to 5 pass.
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* Run 10.6 GeV beam.
+
 
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== Completed ==
+
 
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=== Center beam  on C-hole target ===
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* Experts:
+
* Expected time: 1 hour
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* Goal: Center beam on carbon hole target
+
* Conditions:
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
+
|-
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! beam current:  || 5 μA
+
|-
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! fast raster: || 3x3mm
+
|-
+
! target: || carbon hole
+
|-
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! HMS/SHMS collimator: || PION , COLLIMATOR
+
|-
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! HMS/SHMS trigger: || SCIN 3/4, SCIN 3/4
+
|-
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! HMS angle/momentum  || 25 deg, -1.6 GeV/c
+
|-
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! SHMS angle/momentum  || 25 deg, -1.6 GeV/c
+
|}
+
* Run plan: [https://hallcweb.jlab.org/wiki/index.php/Beam_Checkout_Procedures  Procedure]
+
 
+
=== Initial HMS/SHMS Detector Checkout ===
+
* SHMS/HMS optics experts:
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* HMS DC experts:
+
* Expected time: 1 hour
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* Goal: Initial checkout of the HMS/SHMS detectors. Working well enough for carbon elastics data and initial checkout of the SHMS/HMS tunes.
+
* Conditions:
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
+
|-
+
! beam current:  || 5-20 μA
+
|-
+
! fast raster: || off
+
|-
+
! target: || 0.5% carbon
+
|-
+
! HMS/SHMS collimator: || PION , COLLIMATOR
+
|-
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! HMS/SHMS trigger: || SCIN 3/4,SCIN 3/4
+
|-
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! HMS angle/momentum  || 25 deg, -1.6 GeV/c
+
|-
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! SHMS angle/momentum  || 25 deg, -1.6 GeV/c
+
|}
+
* General Run Plan:
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* [https://github.com/MarkKJones/fall2017-plans/blob/master/initial-hms-shms-detector-checkout/hms_25deg_16gev_fp.pdf HMS focal plane plots]
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* [https://github.com/MarkKJones/fall2017-plans/blob/master/initial-hms-shms-detector-checkout/shms_25deg_16gev_fp.pdf SHMS focal plane plots]
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* [https://github.com/MarkKJones/fall2017-plans/blob/master/initial-hms-shms-detector-checkout/hms_25deg_16gev_kin.pdf HMS physics plots]
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* [https://github.com/MarkKJones/fall2017-plans/blob/master/initial-hms-shms-detector-checkout/shms_25deg_16gev_kin.pdf SHMS physics plots]
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* Need to have rough calibration of BCM1 and BCM2.
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* First check trigger rates ( SHMS/HMS expects 4kHz/5kHz good electrons at 20uA and )
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* Check background triggers rate
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* Confirm the HMS DC tracking is working properly and efficiency is high.
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* Compare HMS/SHMS focal plane plots to MC simulation.
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=== Wire Chamber ===
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* SHMS Run plan:
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* HMS Run plan:
+
 
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==== Shower Counter ====
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* SHMS Run plan: [https://github.com/MarkKJones/fall2017-plans/tree/master/shms-calo-commissioning files]
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* HMS Run plan: [https://github.com/MarkKJones/fall2017-plans/tree/master/hms-calo-commissioning files]
+
 
+
==== Scintillator  ====
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* SHMS Run plan:
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* HMS Run plan:
+
 
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==== Cerenkov ====
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* SHMS Heavy Gas Cherenkov: [https://github.com/MarkKJones/fall2017-plans/blob/master/shms-hgcer-commissioning/shms-hgcer-commissioning-plan-2017.pdf Run Plan]
+
* HMS Run plan:
+
 
+
====Aerogel====
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* SHMS Run plan:[https://github.com/MarkKJones/fall2017-plans/tree/master/shms-aero-commissioning Files]
+
 
+
=== Initial checkout of SHMS/HMS tune ===
+
* Experts: M Jones, H. Szumila
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* Expected time: 1 hour
+
* Goal: Check tune with sieve
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* Conditions:
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
+
|-
+
! beam current:  || 5-20 μA
+
|-
+
! fast raster: || off
+
|-
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! target: || 0.5% carbon
+
|-
+
! HMS/SHMS collimator: || SIEVE , CENTERED SIEVE
+
|-
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! HMS/SHMS trigger: || SCIN 3/4,SCIN 3/4
+
|-
+
! HMS angle/momentum  || 25 deg, -1.6 GeV/c
+
|-
+
! SHMS angle/momentum  || 25 deg, -1.6 GeV/c
+
|}
+
*Plots of focal plane for [https://github.com/MarkKJones/fall2017-plans/blob/master/initial-hms-shms-detector-checkout/hms_sieve_25deg_16gev_fp.pdf HMS focal plane] and [https://github.com/MarkKJones/fall2017-plans/blob/master/initial-hms-shms-detector-checkout/shms_sieve_25deg_16gev_fp.pdf SHMS focal plane]
+
*For SHMS use [https://hallcweb.jlab.org/wiki/images/c/c5/160512_jure_fp_patterns.pdf these plots] to help guide the setting of the quadrupoles.
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*For HMS sieve, rate 340 Hz at 20uA
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*For SHMS sieve, rate of 285 Hz at 20 uA
+
 
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=== Beam Energy Measurement ===
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* Experts: MCC,Mark Jones, Dave Mack
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* Expected time: 2 hours
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* Goal: Measure beam energy for carbon elastics.
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* Conditions:
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
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|-
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! beam current:  || 5uA
+
|-
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! fast raster: || off
+
|-
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! target: || none
+
|}
+
*Run Plan: [http://opsntsrv.acc.jlab.org/ops_docs/online_document_files/MCC_online_files/HallC_energy_measure_proc.pdf MCC procedure]
+
 
+
=== HMS delta scan with LH2 ===
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* Expected time: 5 hour
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* Goal: Checkout HMS delta matrix. Have baseline for comparison at higher HMS central momentum 
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* Conditions:
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
+
|-
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! beam current:  || 3 μA
+
|-
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! fast raster: || 1x1cm
+
|-
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! target: || 10cm LH2
+
|-
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! HMS collimator: || Pion
+
|-
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! HMS trigger: || SCIN 3/4
+
|-
+
! HMS angle/momentum  || 13.5 deg, -2.309 to -1.889 GeV/c
+
 
+
|}
+
*HMS Run Plan:[https://github.com/MarkKJones/fall2017-plans/blob/master/HMS-delta-scan-hyd/HMS-elastic-carbon-run-plan.pdf pdf]
+
 
+
=== Inelastic on 1H  at 21.95 degrees ===
+
* Experts: S. Malace
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* Expected Time: 4 hour
+
* Goal : Data to compare to known cross sections
+
* Conditions: Prescale to 2 kHz
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
+
|-
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! beam current (uA):  || 5
+
|-
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! fast raster: || 3x3
+
|-
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! target: || 10cm LH2, 10cm aluminum
+
|-
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! HMS collimator: || PION
+
|-
+
! HMS trigger: || SCIN 3/4
+
|-
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! HMS angle/momentum  || 21.95 / given in table
+
|}
+
* Run Plan:
+
 
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  Eprime        suggested time (Hydrogen)  suggested time (10 cm Aluminum dummy)
+
 
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  1.6162              20 min                        10 min
+
 
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* Do target boiling and BCM calibration plans listed below. Then continue with the program
+
 
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  Eprime        suggested time (Hydrogen)  suggested time (10 cm Aluminum dummy)
+
 
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  1.3773              20 min                        10 min
+
 
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  1.2000              20 min                        10 min
+
 
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  1.0500              20 min                        10 min
+
 
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  0.9000              20 min                        10 min
+
 
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=== Target boiling study ===
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* Experts: Eric Christy
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* Expected time:  1.5 hours
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* Goal: Measure target boiling.
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* Conditions: Prescale to 2 kHz, cycle magnets. Each current a ten minute run.
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
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|-
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! beam current (uA):  || 1, 3, 5, 7, 10, 12, 15, 17, 20
+
|-
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! fast raster: || 3x3mm
+
|-
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! target: || 10cm LH2, 0.5% Carbon
+
|-
+
! HMS collimator: || PION
+
|-
+
! HMS trigger: || SCIN 3/4
+
|-
+
! HMS angle/momentum  || 21.95 deg, -1.6162 GeV/c
+
|}
+
 
+
=== BCM Calibration ===
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* 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
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
+
|-
+
! beam currents (uA):  || 0, 1, 0, 3, 0, 5, 0, 7, 0, 10, 0, 12, 0, 15, 0, 17, 0, 20
+
|-
+
! fast raster: || off
+
|-
+
! target: || 0.5% Carbon
+
|-
+
| HMS angle || 21.95
+
|-
+
| HMS momentum || 1.2
+
|}
+
 
+
=== Inelastic on 1H  at 42.5 degrees ===
+
* Experts: S. Malace
+
* Expected Time: 9 hours
+
* Goal : Data to compare to known cross sections. Carbon target for pointing at the first momentum.
+
* Conditions: Prescale to 2 kHz
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
+
|-
+
! beam current (uA):  || 10
+
|-
+
! fast raster: || 3x3
+
|-
+
! target: || 10cm LH2, 10cm dummy, 0.5% carbon
+
|-
+
! HMS collimator: || PION
+
|-
+
! HMS trigger: || SCIN 3/4
+
|-
+
! HMS angle/momentum  || 42.5 / given in table
+
|}
+
* Run Plan:
+
 
+
  Eprime        suggested time (Hydrogen)  suggested time (10 cm Aluminum dummy)      Carbon
+
 
+
  1.2000              1 h                        10 min                                  10 min
+
 
+
  1.0400              1 h                        10 min
+
 
+
  0.9200              1 h                        10 min
+
 
+
  0.8000              1 h                        10 min
+
+
  0.7000              1 h                        10 min
+
 
+
  0.6000              1 h                        10 min
+
 
+
=== SHMS Delta checkout  with Carbon Elastic ground state ===
+
* Experts: M. Jones, H. Smuzila
+
* Expected time: 3 hour
+
* Goal: To take data with carbon elastic ground state and first excited state to test delta resolution.
+
* Conditions:
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
+
|-
+
! beam current:  || 5-20 μA
+
|-
+
! fast raster: || off
+
|-
+
! target: ||  0.5% carbon
+
|-
+
! SHMS collimator: || CENTERED SIEVE
+
|-
+
! SHMS trigger: || SCIN 3/4
+
|-
+
! SHMS angle/momentum  || 7.5 deg, 2.214 GeV/c
+
|}
+
*Run Plan:
+
 
+
=== HMS Trigger Efficiency study ===
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* Experts: E. Pooser
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* Expected Time:
+
* Goal : To test sensitivity to threshold in the 3/4 and other triggers.
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* Need to gain match the HMS Cerenkov  according to Hamlet's suggestion [https://logbooks.jlab.org/entry/3503271 elog entry]
+
* Conditions: Parasitic with the HMS Angle/Position Optics Matrix
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* Run Plan:
+
 
+
=== SHMS/HMS Delta Matrix calibration  ===
+
* Experts: M. Jones, H. Smuzila
+
* Expected time: 12 hour
+
* Goal: To
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* Conditions:
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
+
|-
+
! beam current:  || 5-10 μA (whatever is stable)
+
|-
+
! fast raster: || off
+
|-
+
! target: || 0.5% carbon
+
|-
+
! SHMS collimator: || Collimator
+
|-
+
! SHMS trigger: || SCIN 3/4
+
|-
+
! SHMS angle/momentum  || 7.5 deg, various momentum
+
|}
+
*Run Plan: Scan delta in 2% steps.
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*Try with different vertical and horizontal beam positions.
+
 
+
=== SHMS Quartz bar gain matching ===
+
* Experts: S. Malace
+
* Expected Time: 1 hour
+
* Goal : Gain match quartz bars.
+
* Conditions:
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
+
|-
+
! beam current:  || 5-10 uA (or more if easily available)
+
|-
+
! fast raster: || 3x3
+
|-
+
! target: || 10 cm LH2
+
|-
+
! SHMS  || Collimator
+
|-
+
! SHMS trigger: || 3/4 scin
+
|-
+
! SHMS angle/momentum  || 25. deg, -1.4 GeV/c
+
 
+
|}
+
* Run Plan:
+
 
+
=== HMS Angle and position matrix optimization for large ytgt (partially completed)===
+
* Experts: M Jones, H Szumila
+
* Expected time:
+
* Goal:  Calibrate HMS ytgt, yptar and xptar for 10cm target.
+
* Conditions:
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
+
|-
+
! beam current:  || 10 uA (or more if easily available)
+
|-
+
! fast raster: || off
+
|-
+
! target: || Optics #1 target (0,+/-10cm foils) and Optics #2 target (+/-5cm foils)
+
|-
+
! HMS  || Sieve
+
|-
+
! HMS trigger: || 3/4 scin
+
|-
+
! HMS angle/momentum  || 30. deg, -1.3 GeV/c
+
 
+
|}
+
*Run Plan:
+
** Cycle magnets. Insert sieve.
+
** MCC will ask for ion chamber calibration on optics #1 and optics #2 target.
+
** Insert optics #1 target. Take data for 1 hour.
+
** Insert optics #2 target. Take data for 1 hour.
+
 
+
 
+
 
+
=== 1H(eep) Coincidence SHMS (proton) and HMS (electron) ===
+
* Experts: D. Dutta, S. Basnet, A. Karki
+
* Expected time:  1 hour
+
* Goal: Setup coincidence timimg. Kinematic for HEEPcheck. Measure cross section.
+
* Conditions:
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
+
|-
+
! beam current:  || 5-60 μA
+
|-
+
! fast raster: || 3x3mm
+
|-
+
! target: || 10cm LH2, 10cm dummy
+
|-
+
! HMS/SHMS collimator: || PION , COLLIMATOR
+
|-
+
! HMS/SHMS trigger: || SCIN 3/4, SCIN 3/4
+
|-
+
! HMS angle/momentum  || 65.1 deg, -0.936 GeV/c
+
|-
+
! SHMS angle/momentum  || 25.0 deg, +2.012 GeV/c
+
|}
+
*Run Plan:
+
 
+
=== 1H(eep) Coincidence SHMS (electron) and HMS (proton) ===
+
* Experts: D. Dutta, S. Basnet, A. Karki
+
* Expected time:  1 hour
+
* Goal: Setup coincidence timimg. Kinematic for HEEPcheck. Measure cross section.
+
* Setting 1:
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
+
|-
+
! beam current:  || 5-10 μA
+
|-
+
! fast raster: || 3x3mm
+
|-
+
! target: || 10cm LH2, 10cm dummy
+
|-
+
! HMS/SHMS collimator: || PION , COLLIMATOR
+
|-
+
! HMS/SHMS trigger: || SCIN 3/4, SCIN 3/4
+
|-
+
! HMS angle/momentum  || 53.3 deg, +0.957 GeV/c
+
|-
+
! SHMS angle/momentum  || 25.0 deg, -1.816 GeV/c
+
|}
+
 
+
* Setting 2: Here, we will do a mini-delta-scan in the SHMS to check acceptance.
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
+
|-
+
! beam current:  || 5-10 μA
+
|-
+
! fast raster: || 3x3mm
+
|-
+
! target: || 10cm LH2, 10cm dummy
+
|-
+
! HMS/SHMS collimator: || PION , COLLIMATOR
+
|-
+
! HMS/SHMS trigger: || SCIN 3/4, SCIN 3/4
+
|-
+
! HMS angle/momentum  || 47.9 deg, +1.136 GeV/c
+
|-
+
! SHMS angle/momentum (a) || 30.0 deg, -1.816 GeV/c (-7%)
+
|-
+
! SHMS angle/momentum (b)  || 30.0 deg, -1.686 GeV/c (0%)
+
|-
+
! SHMS angle/momentum (c) || 30.0 deg, -1.555 GeV/c (8.5)%
+
|}
+
 
+
=== SHMS Angle and Position Matrix Optimization ===
+
* Experts:
+
* Expected time: 2 hour
+
* Goal: SHMS angle and position matrix optimization
+
* Conditions:
+
{|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
+
|-
+
! beam current:  || 5-20 μA
+
|-
+
! fast raster: || off
+
|-
+
! target: || optics target 1, optics target 2
+
|-
+
! HMS/SHMS collimator: || Sieve , Centered Sieve
+
|-
+
! HMS/SHMS trigger: || SCIN 3/4, SCIN 3/4
+
|-
+
! HMS angle/momentum  || 30. deg, -1.3 GeV/c
+
|-
+
! SHMS angle/momentum  || 25 deg, -1.4 GeV/c
+
|}
+
*Run Plan:
+
  
 
= Beam energy of 6.4 GeV =
 
= Beam energy of 6.4 GeV =

Revision as of 16:20, 12 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

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 16,20,25,30,35 deg / 5.074,4.522,3.911,3.349,2.869 GeV
SHMS angle/momentum 16,20,25,30,35 deg / 5.074,4.522,3.911,3.349,2.869 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

Coincidence Checkout [16 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
  • We will take a set of 1H(e,e’p) measurements to check the angle and dp/p offsets for the spectrometers. Use a current of 50 μA if possible. Rotate both HMS and SHMS to -27.5° again (or keep them there if already at that angle). Keep both HMS and SHMS at a central momentum of -3.609 GeV/c. First use the sieve slit on the SHMS side and the central Carbon optics target. Use the Particle Id. trigger, and measure about 2K singles in SHMS (that should take about one hour). Now install the 10 cm hydrogen target and measure about 2K singles in SHMS (that is again about one hour). Now take a coincidence spectrum in the same situation, again a measurement of about one hour. Remove the sieve slit on the SHMS side and use the large collimator. Measure a coincidence spectrum for one hour (rate should be 4 Hz, so this will get >10K statistics). Now install the sieve slit on the HMS side and measure another coincidence spectrum for a few hours (a few K statistics).

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