Difference between revisions of "Run Coordination Meetings:Fall2019 Run"

Revision as of 15:06, 30 October 2019

Fall 2019/Spring 2020 GlueX Run

Meeting General Agenda

Connect Information

To connect from the outside by phone please do the following

1.) To join via a Web Browser, go to the page [1] https://bluejeans.com/660743227.

2.) To join via Polycom room system go to the IP Address: 199.48.152.152 (bjn.vc) and enter the meeting ID: 660743227.

3.) To join via phone, use one of the following numbers and the Conference ID: 660743227.

4.) The moderator code is 8394

Dial Either +1 408 740 7256 or +1 888 240 2560 for US or Canada

Specific instructions for connecting from JLab's Hall D conference room:

• Turn polycon on if necessary (do it before turning the computer on)
• With the polycon, place a call at 199.48.152.152
• Press # to enable the polycom keypad, then enter the meeting id: 660743227 and #
• You may have to unmute the microphone: #*4
• Turn the computer on if needed

Beam and Hall configuration

• Beam energy expected:
  • 11.6 GeV (Tentative. It may be 11.5 GeV, i.e. about 100 MeV less than value for Spring 2019)
• Solenoid:
  • 1350A
• CW Beam:
  • 250 MHz frequency.
  • Range: 1 nA-600 nA. ??Maybe higher current required for Tagger Accidental study??
  • Chopper slit: shared with Hall C.
  • Standard current and radiators
    • DIRC commissioning:
      • ~120/300 nA on a 4.1·10^-4 R.L. radiator (50 μm diamond). (RSAD limit 500nA on 58 μm diamond))
      • ~140/360 nA on a 33.7·10^-5 R.L. AL radiator (30 µm Al). (RSAD limit 600nA on 30 µm Al radiator))
    • GlueX Production:
      • ~300 nA on a 4.1·10^-4 R.L. radiator (50 μm diamond). (RSAD limit 500nA on 58 μm diamond))
      • ~360 nA on a 33.7·10^-5 R.L. AL radiator (30 µm Al). (RSAD limit 600nA on 30 µm Al radiator))
    • High luminosity DAQ tests: 400-600 nA on a 40 μm µm Al radiator
    • Tagger Accidental study ?? nA on 40 μm µm Al radiator
• Position Slow Lock on or FFB on (FFB doesn't operate below 50nA).
• Radiators:
  • Goniometer radiators: DIRC commissioning starts on 40 μm Al radiator. Then it uses production diamond.
    • Diamond JD70-103 (50 μm - 4.1·10^-4 R.L., 7×7 mm²) - new crystal - good rocking curve
    • Diamond JD70-105 (47 μm - 3.9·10^-4 R.L., 7×7 mm²) - Used for the second part of GlueX's Fall 2018 run. Good performance.
    • Diamond JD70-106 (50 μm - 4.1·10^-4 R.L., 7×7 mm²) - new crystal - good rocking curve
    • Diamond JD70-107 (55 μm - 4.6·10^-4 R.L., 7×7 mm²) - new crystal - good rocking curve
    • Diamond JD70-109 (50 μm - 4.1·10^-4 R.L., 7×7 mm²) - new crystal - good rocking curve
    • Amorphous 40 μm Al radiator (44.9·10^-5 R.L.)
    • V-wire (for TAC run).
  • Amorphous
    • 1.64 µm Al (1.86·10^-5 R.L., see study)</font>
    • 10 µm Al (11.2·10^-5 R.L.)
    • 30 µm Al (33.7·10^-5 R.L.)

• Tagger quadrupole on (-4.2 A).

• Collimator hole: Both 5 mm diameter and 3.4 mm diameter. Default running: 5.0 mm.

• Targets:
  • LH2 target: cryogenic target

• PS converter: 75 μm

• Absolute luminosity calibration:
  • TAC partially cured for and installed but has divider problem.
  • ComCal installed and can be used instead of TAC.

• Miscellaneous:
  • Tracking device (2 Transition Radiation Detector(TRD, one wire-based, 1 GEM-based)+3 GEM) in front of lower DIRC box during DIRC commissioning.
    • Will be placed at three different locations during DIRC commissioning. Access necessary to move them to new position. (Solenoid field does not need to be ramped down.) 3h is necessary to move GEM/TRD from one location to the next (ideally done during beam study/RF recovery).
    • Will be moved in the Pair Spect. area during Spring run.
  • Pair Spect. area: FCal Pb-W cristal testing/Hall C scintillator glass testing
  • EIC aerogel test? If ready. Will be behind the GEM/TRD
  • Fiber test for profiler prototype (Regina)?

General Information

This document describes the run plan for the Hall D Fall 2019-Spring 2020 run.

• Schedule for the run:

1. Nov. 18th - 24th: Electron beam restoration.
2. Nov. 25th - Dec. 19th: 2 PAC-weeks for DIRC Commissioning (Solenoid at nominal field. LH2 target))
3. Dec. 20th -Jan. 2nd: Xmas break.
4. Jan. 3rd - 9th: Electron beam restoration. (Same condition as Fall ⇒ It is not unreasonable to imagine it to be faster). This was the case for the Fall17-Spring18 run where the Xmas break was also very short.)
   • Counting room should be staffed.
   • If time allows, the GEM/TRD will be moved to PS location (lower priority than GlueX production if we have an early start).
5. Jan. 10th -May 6th: GlueX high luminosity production.

1. Nominally, every Mondays: 12h of beam study. Every Tuesdays, if necessary: 8h of RF recovery.

• Accelerator overall plan and priorities:

1. Deliver physics beam to 4 halls. (Hall A stop early, on March. 23rd. Halls B and or C will always be at 5th pass (except for 2×2 days for Hall C), so Hall D beam will always be RF-separated.)

• Experiment: GlueX E12-06-102 Production
• Straight track run at the very beginning of the Fall run if this is compatible with detector/DAQ/Trigger checkout. If not, to be done at the end of the Fall run.: one night of good data ⇒ overall one calendar day including solenoid ramp-up.
• DIRC commissioning page (+TRD/GEM).
• DAQ:
  • new CODA 4h at higher intensity than standard.
  • cDAQ 4h at higher intensity than standard.
  • Data consistency check (parasitic).
• Trigger tests:
  • FCal-BCal-ST trigger test: 1 shift
  • High intensity (i.e. nominal for this run) trigger needs tuning at each increase of the beam current until nominal high intensity is reached.
• HV scans for TOF's new counters.
• Tagging accidentals beam tests (Richard Jones, Beni) ??h invasive)
• ComCal test: anode current studies with special trigger (raw mode): 1h invasiv.
• Pair. Spec. test area:
  • Right arm (facing downstream): FCal Pb-W cristal quality and detector checks. Fully parasitic
  • Left arm: Test of Hall C 3×3 block glass-scintillator prototype. During Spring 2020: TRD/GEM will be present after removal from in front of DIRC. Aerogel may be present. Fully parasitic
  • EIC GEM test? (left arm?)
• CPP trigger tests: 1 shift + 2 shifts of installation/removal.
  • Invasive.
  • Installation/removal should be coordinated with beam study and RF recovery, to save a shift or two.
• Test fast raster beam envelope measurement with larger x-rastering (Richard Jones) ??h invasive)
• Beamline, FCal platform: Fiber test for profiler prototype (Regina)?

• Expected Staffing and responsibilities:
  • The Run Coordinator oversees the run:
    • Nov 18th-Nov 24th: 7 days: Alexandre Deur (accelerator restoration)
    • Nov 24th-Dec 4th, 11 days: Alexandre Deur
    • Dec 4th-Dec 11th, 7 days: Naomi Jarvis
    • Dec 11th-Dec. 20th, 10 days: Wenliang Li
    • Jan 3rd-Jan 9th: 7 days: Alexandre Deur (accelerator restoration)
    • Jan 9th-Jan 15th, 7 days: Alexandre Deur
    • Jan 15th-Jan 22nd, 7 days: Jonathan Zarling
    • Jan 22nd-Jan 29th, 7 days: Alexander Austregesilo
    • Jan 29th-Feb 5th, 7 days: Alexander Ostrovidov
    • Feb 5th-Feb 12th, 7 days: Daniel Lersch
    • Feb 5th-Feb 12th, 7 days: Richard Jones
    • Feb 12th-Feb 19th, 7 days: Colin Gleason
    • Feb 19th-Feb 26th, 7 days: TBD )
    • Feb 26th-March 4th, 7 days: TBD )
    • March 4th-March 11th, 7 days: TBD )
    • March 11th-March 18th, 7 days: Richard Jones
    • March 18th-March 25th, 7 days: TBD )
    • March 25th-Apr 1st, 7 days: TBD )
    • Apr 1st-Apr 8th, 7 days: TBD )
    • Apr 8th-Apr 15th, 7 days: TBD )
    • Apr 15th-Apr 22nd, 7 days: TBD )
    • Apr 22nd-Apr 29th, 7 days: TBD )
    • Apr 29th=May 6th, 7 days: TBD )
  • The Physics Division Liaison (PDL) and Hall D Work Coordinator/Safety Warden (M. Stevens) verify that the proper safety rules are followed. PDL is:
    • Benedikt Zihlmann
  • The analysis coordinator (Alexander Austregesilo??)) oversees the off-line diagnostic of the different systems and analysis of the data.
  • Shifts: 2 persons per shift.
• Coordination Activities:
  • The RC will attend the MCC meetings at 7:45am and 8:00am and the weekly MCC meeting (Wednesday, 1:30pm). The PDL will attend the weekly MCC meeting.
  • Daily run meetings broadcasted on Bluejeans will occur at 8:45am in the counting house conference room. The Run Coordinator will be responsible for organizing and chairing the meeting.
• Useful links:
  • Accelerator schedule
    • Long term schedule
    • Scheduled Accelerator Down (SAD)/Maintenance Calendar
    • http://accboard.acc.jlab.org/
  • Link to Richard Jones program to plot the beam profile at the collimator.
    • Harp extrapolation tool
  • Links to previous runplans
    • 10.5 GeV Fall 2014
    • 6 GeV spring 2015
    • 12.05 GeV Fall 2015
    • 12.05 GeV Spring 2016
    • 11.64 GeV Fall 2016
    • 11.64 GeV Spring 2017
    • 11.64 GeV Fall 2017 and Spring 2018 runs
    • 11.64 GeV Fall 2018
    • 11.64 GeV Spring 2019
  • Links to beam parameters/radiation level monitoring:
    • Last 8-hours plots showing 1-minute, 10-minute, and hourly averages
    • Same but Last 24-hours
    • Same but Last 72-hours
    • Week, month, and quarter (3 months) plots also exist, with similar web addresses.
    • A map of the radiation monitors

Runplan

TBD

Hall D situation room (current run plan)

Hall D counting room white board

Runplan time charts

TBD

Accelerator status

1. • Link to accelerator short term schedule

Hot Checkout

1. Hot Check OUT Status 2% ready ; 0% checked ; 98% not ready

Readiness for Spring 19 run

• Solenoid (Eugene/Beni)
• Surveys (Tim/Mark/Scott)
  • Goniometer fiducialization and survey (Oct 18)
  • Target/SC survey (Oct 24)
  • ComCal Preliminary alignment (Nov 18)
  • TAC/Profiler Survey, if possible (Nov 20)
  • TRD/Gem Fiducialization (Nov 8) and Survey (Nov 12)
  • DIRC North Final Survey (Nov 13)
  • DIRC South Final Survey (Nov 20)
  • FCAL/TOF/ComCal final Survey (Nov 19)
  • Tagger Hodoscope Survey: Ready to Survey. Any day that works for the Survey Group.
• DAQ (Sergei).
• Trigger (Alex S.).
• Beam line
  • Diamond status (Tim/Hovanes).
  • Tagger hodoscope (A. Somov).
  • Tagger microscope (Richard Jones/Beni).
  • Goniometer (Hovanes).
  • Collimator Motion (Hovanes).
  • Active collimator detectors(Richard Jones/Alexandre Deur)
  • Profiler
  • luminosity monitor (Hovanes).
  • Halo monitors
  • PS system (Alex Somov)
  • Polarimeter (M. Dugger/Beni/Fernando).
    • Tested early Oct. when M. Dugger was on site. It looks fine and operational.
  • LH2 Target (Tim/Alexandre D.)
    • To be installed this week.
  • TAC (Hovanes/Alex Somov).
  • Slow control (Hovanes).
  • RF (Sergei)
  • Radiation monitors (Alexandre D.)
  • x-ray W shield (Tim/Lubomir).
• Detector systems
  • ST (Mark Ito/Beni).
  • FDC (Lubomir).
    • Issues with low voltages. They are being replaced.
    • A protective mesh has been installed
  • CDC (Beni).
    • Tests on-going. They must be completed and the CDC readied before moving the target in.
    • Drift time entry by Naomi
  • BCal (Elton/Mark Dalton)
    • Was turned on. Some of the low voltages did not come up.
  • FCal (Collin Gleason)
    • About 30 basis needs to be replaced. There should be enough spares.
  • ComCal (in lieu of TAC) (Alex Somov).
  • TOF (Mark Ito/Beni).
    • Due to the TOF upgrade, all the frames were removed. TOF needs to be recalled and checked.
  • DIRC (J. Stevens).
    • Readout: the detectors are cabled and successfully read in pulser mode. One PMT was bad but has now been fixed.
    • Mirror boxes: waiting for the borosilicate glass that insulates the mirrors from the water. Once available, they will be attached to the mirror (with glue).
  • GEM/TRD (Sergei/Lubomir).
• RSAD and ESAD Safety documents (Beni):
• Phones
  • System experts should start looking for their phone and charger.
• Hall Status/safety (Mark/Tim/Scott)
• Other topics?