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| Line 1: |
Line 1: |
| − | = Beam energy of 2.2 GeV = | + | =[[Hall C One pass commissioning plan | Beam energy of 2.2 GeV ]]= |
| − | | |
| − | == Initial conditions ==
| |
| − | * HMS/SHMS angle surveys.
| |
| − | * Beamline BPM and Harp surveys. Check offsets in MCC database.
| |
| − | * HMS/SHMS Conditions:
| |
| − | {|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
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| − | |-
| |
| − | ! HMS/SHMS collimator: || PION , COLLIMATOR
| |
| − | |-
| |
| − | ! HMS/SHMS trigger: || SCIN 3/4, SCIN 3/4
| |
| − | |-
| |
| − | ! HMS angle/momentum || 25 deg, -1.6 GeV/c
| |
| − | |-
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| − | ! SHMS angle/momentum || 25 deg, -1.6 GeV/c
| |
| − | |}
| |
| − | * Run 2.2 GeV beam four 4 days and switch to 3 pass.
| |
| − | * Run 6.4 GeV beam and switch to 5 pass.
| |
| − | * Run 10.6 GeV beam.
| |
| − | | |
| − | == Completed ==
| |
| − | | |
| − | === Center beam on C-hole target ===
| |
| − | * Experts:
| |
| − | * Expected time: 1 hour
| |
| − | * Goal: Center beam on carbon hole target
| |
| − | * Conditions:
| |
| − | {|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
| |
| − | |-
| |
| − | ! beam current: || 5 μA
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| − | |-
| |
| − | ! fast raster: || 3x3mm
| |
| − | |-
| |
| − | ! target: || carbon hole
| |
| − | |-
| |
| − | ! HMS/SHMS collimator: || PION , COLLIMATOR
| |
| − | |-
| |
| − | ! 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
| |
| − | |}
| |
| − | * Run plan: [https://hallcweb.jlab.org/wiki/index.php/Beam_Checkout_Procedures Procedure]
| |
| − | | |
| − | === Initial HMS/SHMS Detector Checkout ===
| |
| − | * SHMS/HMS optics experts:
| |
| − | * HMS DC experts:
| |
| − | * Expected time: 1 hour
| |
| − | * 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
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| − | |-
| |
| − | ! target: || 0.5% carbon
| |
| − | |-
| |
| − | ! HMS/SHMS collimator: || PION , COLLIMATOR
| |
| − | |-
| |
| − | ! HMS/SHMS trigger: || SCIN 3/4,SCIN 3/4
| |
| − | |-
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| − | ! HMS angle/momentum || 25 deg, -1.6 GeV/c
| |
| − | |-
| |
| − | ! SHMS angle/momentum || 25 deg, -1.6 GeV/c
| |
| − | |}
| |
| − | * General Run Plan:
| |
| − | * [https://github.com/MarkKJones/fall2017-plans/blob/master/initial-hms-shms-detector-checkout/hms_25deg_16gev_fp.pdf HMS focal plane plots]
| |
| − | * [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:
| |
| − | | |
| − | ==== 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]
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| − | | |
| − | ==== Scintillator ====
| |
| − | * SHMS Run plan:
| |
| − | * HMS Run plan:
| |
| − | | |
| − | ==== 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====
| |
| − | * SHMS Run plan:[https://github.com/MarkKJones/fall2017-plans/tree/master/shms-aero-commissioning Files]
| |
| − | | |
| − | === Initial checkout of SHMS/HMS tune ===
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| − | * Experts: M Jones, H. Szumila
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| − | * Expected time: 1 hour
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| − | * Goal: Check tune with sieve
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| − | * Conditions:
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| − | {|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
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| − | |-
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| − | ! beam current: || 5-20 μA
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| − | |-
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| − | ! fast raster: || off
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| − | |-
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| − | ! target: || 0.5% carbon
| |
| − | |-
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| − | ! HMS/SHMS collimator: || SIEVE , CENTERED SIEVE
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| − | |-
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| − | ! HMS/SHMS trigger: || SCIN 3/4,SCIN 3/4
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| − | |-
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| − | ! HMS angle/momentum || 25 deg, -1.6 GeV/c
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| − | |-
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| − | ! SHMS angle/momentum || 25 deg, -1.6 GeV/c
| |
| − | |}
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| − | *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:
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| − | {|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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| − | |-
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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:
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| − | {|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
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| − | |-
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| − | ! beam current: || 3 μA
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| − | |-
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| − | ! fast raster: || 1x1cm
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| − | |-
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| − | ! target: || 10cm LH2
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| − | |-
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| − | ! HMS collimator: || Pion
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| − | |-
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| − | ! HMS trigger: || SCIN 3/4
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| − | |-
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| − | ! 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 ===
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| − | * Experts: S. Malace
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| − | * Expected Time: 4 hour
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| − | * Goal : Data to compare to known cross sections
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| − | * Conditions: Prescale to 2 kHz
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| − | {|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
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| − | |-
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| − | ! beam current (uA): || 5
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| − | |-
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| − | ! fast raster: || 3x3
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| − | |-
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| − | ! target: || 10cm LH2, 10cm aluminum
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| − | |-
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| − | ! HMS collimator: || PION
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| − | |-
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| − | ! HMS trigger: || SCIN 3/4
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| − | |-
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| − | ! HMS angle/momentum || 21.95 / given in table
| |
| − | |}
| |
| − | * Run Plan:
| |
| − | | |
| − | 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
| |
| − | | |
| − | === 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.
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| − | {|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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| − | |-
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| − | ! target: || 10cm LH2, 0.5% Carbon
| |
| − | |-
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| − | ! HMS collimator: || PION
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| − | |-
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| − | ! HMS trigger: || SCIN 3/4
| |
| − | |-
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| − | ! HMS angle/momentum || 21.95 deg, -1.6162 GeV/c
| |
| − | |}
| |
| − | | |
| − | === BCM Calibration ===
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| − | * Experts: Eric Christy
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| − | * Expected time: 1 hour
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| − | * Goal: BCM Calibration data including low currents to look at non-linearities
| |
| − | * Conditions: Slit closed for zero current
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| − | * Procedure: Ask MCC to ramp up and then down covering the currents below with alternating on/off and 2 minutes at each current
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| − | {|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
| |
| − | |-
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| − | ! beam currents (uA): || 0, 1, 0, 3, 0, 5, 0, 7, 0, 10, 0, 12, 0, 15, 0, 17, 0, 20
| |
| − | |-
| |
| − | ! fast raster: || off
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| − | |-
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| − | ! target: || 0.5% Carbon
| |
| − | |-
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| − | | HMS angle || 21.95
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| − | |-
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| − | | HMS momentum || 1.2
| |
| − | |}
| |
| − | | |
| − | === Inelastic on 1H at 42.5 degrees ===
| |
| − | * Experts: S. Malace
| |
| − | * Expected Time: 9 hours
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| − | * Goal : Data to compare to known cross sections. Carbon target for pointing at the first momentum.
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| − | * Conditions: Prescale to 2 kHz
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| − | {|class="wikitable" style="margin-left: 60px; margin-right: auto; border: none;"
| |
| − | |-
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| − | ! beam current (uA): || 10
| |
| − | |-
| |
| − | ! fast raster: || 3x3
| |
| − | |-
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| − | ! target: || 10cm LH2, 10cm dummy, 0.5% carbon
| |
| − | |-
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| − | ! HMS collimator: || PION
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| − | |-
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| − | ! HMS trigger: || SCIN 3/4
| |
| − | |-
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| − | ! 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
| |
| − |
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| − | 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
| |
| − | |-
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| − | ! target: || 0.5% carbon
| |
| − | |-
| |
| − | ! SHMS collimator: || CENTERED SIEVE
| |
| − | |-
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| − | ! SHMS trigger: || SCIN 3/4
| |
| − | |-
| |
| − | ! SHMS angle/momentum || 7.5 deg, 2.214 GeV/c
| |
| − | |}
| |
| − | *Run Plan:
| |
| − | | |
| − | === HMS Trigger Efficiency study ===
| |
| − | * Experts: E. Pooser
| |
| − | * Expected Time:
| |
| − | * Goal : To test sensitivity to threshold in the 3/4 and other triggers.
| |
| − | * 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
| |
| − | * 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;"
| |
| − | |-
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| − | ! beam current: || 5-10 μA (whatever is stable)
| |
| − | |-
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| − | ! fast raster: || off
| |
| − | |-
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| − | ! target: || 0.5% carbon
| |
| − | |-
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| − | ! SHMS collimator: || Collimator
| |
| − | |-
| |
| − | ! SHMS trigger: || SCIN 3/4
| |
| − | |-
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| − | ! SHMS angle/momentum || 7.5 deg, various momentum
| |
| − | |}
| |
| − | *Run Plan: Scan delta in 2% steps.
| |
| − | *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 = |
