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| | __TOC__ | | __TOC__ |
| | ==[[Tune Electron Beam]]== | | ==[[Tune Electron Beam]]== |
| − | # Goal: Get electron beam to the dump in the tagger hall.
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| − | # Responsibility: Accelerator, HallD, RadCon.
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| − | # Conditions:
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| − | #* Tagger hall equipment removed or shielded. This includes the microscope (TAGM) and the electronics.
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| − | #* Pulsed beam may be used.
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| − | #* No radiator installed.
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| − | #* Collimator blocks the photon beamline to Hall D.
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| − | # Activities:
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| − | #* Tune beam to the dump, check the beam specification.
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| − | #* Check radiation levels in the tagger hall.
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| − | #* Check for photons and radiation levels in the collimator cave.
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| | ==[[Tune Photon Beam]]== | | ==[[Tune Photon Beam]]== |
| − | # Goal: Tune the photon beam to go through the collimator, the experimental target area, and into the photon beam dump.
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| − | # Responsibility: HallD, Accelerator, RadCon.
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| − | # Conditions:
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| − | #* Tagger hall equipment removed or shielded. This includes the microscope (TAGM) and the electronics.
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| − | #* Beam 50nA CW (if possible).
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| − | #* Radiator 10<sup>-4</sup> RL.
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| − | #* Collimator hole is 3.5mm at nominal beam position.
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| − | #* Solenoid on with current ~1000A.
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| − | #* GlueX detectors off (except peripheral such as BCAL)
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| − | #* No target in place (use air along beamline as target).
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| − | # Activities
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| − | #* Use the beam profiler to move the photon beam to the hole in the collimator. (Accel, Hall D)
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| − | #* Check radiation levels in the collimator cave and HallD. (RadCon)
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| − | #* Turn the PS magnet on and install a 10<sup>-3</sup> converter. Tune the PS coarse detectors (Hall D).
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| − | #* Use the PS coarse detectors to verify the beam location.
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| − | #* Insert a convertor in the PS and leave running with its own trigger throughout the run period.
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| − | #* Calibrate the active collimator by scanning (desirable activity). (HallD and Accelerator)
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| − | #* Use other detectors (under discussion) to verify the beam position with respect to the beam pipes and the target (if time permits) (Hall D)
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| − | #* Turn detectors on slowly, moving in from the peripheral to the center. Monitor the rates and background levels. (Hall D)
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| − | #* Insert a thin target at the nominal target position. Set the regular trigger and take data for about 1 shift.
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| | ==[[One Week Pause in Running]]== | | ==[[One Week Pause in Running]]== |
| − | # Goal: Reinstall tagger detectors and check data.
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| − | # Responsibility: HallD
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| − | # Conditions:
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| − | #* Beam off in the Hall.
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| − | # Acivities
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| − | #* Reinstall the tagger detectors, TAGM and TAGH.
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| − | #* Check validity of data offline. Use as feedback to detector settings.
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| − | #* Check/modify the online monitoring histograms based on data.
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| | ==[[Collect Beam Data for Detector Checkout]]== | | ==[[Collect Beam Data for Detector Checkout]]== |
| − | # Goal: Collect 5 days of beam data.
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| − | # Responsibility: HallD
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| − | # Conditions:
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| − | #* Tagger hall equipment in place and operating.
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| − | #* Beam 50nA CW
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| − | #* Radiator is 10<sup>-4</sup>.
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| − | #* Collimator hole is 3.5mm.
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| − | #* Solenoid on at 1200A
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| − | #* GlueX detectors are on.
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| − | #* Thin commissioning target at nominal position.
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| − | # Activities
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| − | #* Verify photon beam position and background levels.
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| − | #* Take data with the regular trigger for five days
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| | ==[[Optimize Detector Settings]]== | | ==[[Optimize Detector Settings]]== |
| − | # Goal: Verify optimal settings for detectors.
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| − | # Responsibility: HallD
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| − | # Conditions:
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| − | #* Tagger hall equipment in place and operating.
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| − | #* Beam 50nA CW
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| − | #* Radiator is 10<sup>-4</sup>.
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| − | #* Collimator hole is 3.5mm.
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| − | #* Solenoid on at 1200A
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| − | #* GlueX detectors are on.
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| − | #* Thin commissioning target at nominal position.
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| − | # Activities
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| − | #* If time permits, dedicated running to optimize settings of detectors will be carried out.
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| | ==[[Drift Chamber Alignment]]== | | ==[[Drift Chamber Alignment]]== |
| − | # Goal: Collect data with no or low field.
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| − | # Responsibility: HallD
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| − | # Conditions:
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| − | #* Tagger hall equipment in place and operating.
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| − | #* Beam 50nA CW
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| − | #* Radiator is 10<sup>-4</sup>.
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| − | #* Collimator hole is 3.5mm.
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| − | #* Solenoid 0-300A depending on backgrounds.
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| − | #* GlueX detectors are on.
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| − | #* Thin commissioning target at various positions.
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| − | # Activities
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| − | #* If time permits, collect data with target in several positions.
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| | ==[[Collect More Regular Data]]== | | ==[[Collect More Regular Data]]== |
| − | # Goal: Collect data for calibration and characterization of the detector.
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| − | # Responsibility: HallD
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| − | # Conditions:
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| − | #* Tagger hall equipment in place and operating.
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| − | #* Beam 50nA CW
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| − | #* Radiator is 10<sup>-4</sup>.
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| − | #* Collimator hole is 3.5mm.
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| − | #* Solenoid 1200A.
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| − | #* GlueX detectors are on.
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| − | #* Thin commissioning target at various positions.
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| − | # Activities
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| − | #* If time permits, and all other tasks are done
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| − | #* Take enough data for preliminary calibration and alignment of the detector. At least one week of running.
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