Difference between revisions of "Fall 2016 GlueX Run"

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(→‎Run Configuration:)
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* Experiment: GlueX [https://misportal.jlab.org/mis/physics/experiments/searchProposals.cfm?paramHall=D&paramExperimentEnergy=12GeV&paramExperimentStatusList=A,G E12-06-102] Production
 
* Experiment: GlueX [https://misportal.jlab.org/mis/physics/experiments/searchProposals.cfm?paramHall=D&paramExperimentEnergy=12GeV&paramExperimentStatusList=A,G E12-06-102] Production
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* Planned tests:
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** High-intensity GlueX test (invasive, 3 shifts)
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** ComCAL(PrimeX) prototype test (parasitic)
 
* 2016/10/08 - 2016/12/21, 65 days; see [https://www.jlab.org/div_dept/physics_division/experiments/schedule.html Accelerator Schedule]
 
* 2016/10/08 - 2016/12/21, 65 days; see [https://www.jlab.org/div_dept/physics_division/experiments/schedule.html Accelerator Schedule]
 
*[https://halldweb.jlab.org/hdops/wiki/index.php/Main_Page Information for shift takers]
 
*[https://halldweb.jlab.org/hdops/wiki/index.php/Main_Page Information for shift takers]

Revision as of 22:08, 29 September 2016

General Information

Run Configuration:

  • Beam energy: 11.632 GeV
  • Solenoid on at 1350A.
  • Beam current: CW 1 nA-2μA, 250 MHz frequency. See RSAD for the RadCon limitations.
    • Regular running: 150 nA on 4.1·10-4 radiator
    • High intensity tests: 3 shifts at 1 µA on 4.1·10-4 radiator
  • Diamond radiators:
    • J1a50       (50 μm - 4.1·10-4 R.L., 4×4 mm²) - old crystal - excellent rocking curve
    • JD70-100 (58 μm - 4.8·10-4 R.L., 7×7 mm²) - new crystal - excellent rocking curve
    • JD70-105 (47 μm - 3.9·10-4 R.L., 7×7 mm²) - new crystal - good rocking curve
    • JD70-104 (17 μm - 1.4·10-4 R.L., 7×7 mm²) - new crystal - wider rocking curve - marginally usable
  • Tagger quadrupole on (-4.2 A).
  • Collimator hole: 5 mm diameter with ≈50 µm diamond radiators, may use 3.4 mm diameter with ≈20 µm diamonds
  • Target: LH2 target

Schedule Details

  1. Oct. 1st-Oct. 7th: Electron beam restoration
  2. Oct. 8th-Nov. 22nd: Hall D Fall run, part 1.
  3. Nov. 23rd-Nov. 27th: Thanksgiving break.
  4. Nov. 28th-Dec. 18th: Hall D Fall run, part 2 (includes 2 day of beam restoration).
  5. Dec. 19th-Dec. 21st: TBD
  6. Every Tuesdays: 12h of beam study. Every Thursdays, if necessary: 8h of RF recovery.

List of Run Coordinators and Physics Division Liaison

  • RCs:
    • Sat. Oct. 1 - Fir. Oct. 7 (7 days): Alexandre Deur (accelerator restoration)
    • Sat. Oct. 8 - Wed. Oct. 19 (11 days): Alexandre Deur
    • Wed. Oct. 19 - Wed. Nov. 2 (14 days): Mark Dalton
    • Wed. Nov. 2 - Wed. Nov. 16 (14 days): Paul Eugenio
    • Wed. Nov. 16 - Wed. Nov. 23: (7 days): Naomi Jarvis
    • Wed. Nov. 23 - Sun. Nov. 27: (4 days): Thanksgiving shutdown: very likely RC not necessary
    • Sun. Nov. 27 - Wed. Dec. 7: (10 days): Adesh Subedi
    • Wed. Dec. 7 - Mon. Dec. 19: (12 days): David Lawrence
    • Mon. Dec. 19 - Wed. Dec. 21: (2 days): If RC necessary, TBD
    • PDL, Benedikt Zihlmann

Detailed Running Plan

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