Difference between revisions of "Fall 2017 Spring 2018 GlueX Run"
From Hall D Ops Wiki
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* Beam energy: 11.632 GeV | * Beam energy: 11.632 GeV | ||
* Solenoid on at 1350A. | * Solenoid on at 1350A. | ||
| − | * Beam current: CW 1 nA-2μA, 250 MHz frequency. See [https://www.jlab.org/Hall-D/ | + | * Beam current: CW 1 nA-2μA, 250 MHz frequency. See [https://www.jlab.org/Hall-D/safety-docs/2017_F-2018_S/RSAD.pdf RSAD] for the RadCon limitations. |
** Regular running: 150 nA on 4.1·10<sup>-4</sup> radiator | ** Regular running: 150 nA on 4.1·10<sup>-4</sup> radiator | ||
* Diamond radiators: | * Diamond radiators: | ||
Latest revision as of 17:48, 15 November 2017
Contents
General Information
- Experiment: GlueX E12-06-102 Production
- Planned tests:
- High-intensity GlueX test
- Align thin (17 μm) diamond
- TAC V-wire commissioning
- HV CDC and FDC scans.
- ToF non-linearity test.
- Fast raster beam characterization
- Muon chamber test (parasitic)
- TRD test (parasitic)
- 2017/12/04 - 2018/03/23, (with Dec. 18th-Jan. 8th Xmas break). 12 weeks; see Accelerator Schedule
- Information for shift takers
- Shift schedule
- Hall D run logbook (HDLOG)
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
- 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
- Nov. 27th-Dec. 3rd: Electron beam restoration
- Dec. 4th-Dec. 18th: Hall D Fall run.
- Dec. 18th-Jan. 8th: Xmas break. (Solenoid will be ramped down, but kept cool.)
- Jan. 9th-Jan. 11th: Electron beam restoration
- Jan 12th-Mar. 23rd: Hall D Spring run.
- Every Tuesdays: 12h of beam study. Every Thursdays, if necessary: 8h of RF recovery.
List of Run Coordinators and Physics Division Liaison
- PDL: Benedikt Zihlmann
- RCs:
- Nov. 27th-Dec. 3rd, 7 days: A. Deur (accelerator restoration)
- Dec. 4th-Dec. 18th, 14 days: A. Deur
- Xmas break.
- Jan. 9th-Jan. 11th, 3 days: A. Deur (accelerator restoration)
- Jan. 12th-Jan. 24th, 12 days: A. Deur
- Jan. 24th-Jan. 31st, 7 days: Sasha Ostrovidov
- Jan. 31st-Feb. 7th, 7 days: Justin Stevens
- Feb. 7th-Feb. 14th, 7 days: TBD
- Feb. 14th-Feb. 21st, 7 days: Alex Barnes
- Feb. 21st-Feb. 28th, 7 days: Zisis Papandreou
- Feb. 28th-March 7th, 8 days: Cristiano Fanelli
- March 7th-March 14th, 7 days: Richard Jones
- March 14th-March 22nd, 8 days: Naomi Jarvis
