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

Revision as of 18:21, 16 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:
  • 11.5 GeV (about 100 MeV less than value for Spring 2019)
• Solenoid:
  • 1350A
• CW Beam:
  • 250 MHz frequency.
  • Range: 1 nA-480 nA.
  • Chopper slit: shared with Hall TBD
  • Standard current and radiators
    • DIRC commissioning:
      • ~120/300 nA on a 4.1·10^-4 R.L. radiator (50 μm diamond). (RSAD limit 400nA on 58 μm diamond))
      • ~140/360 nA on a 33.7·10^-5 R.L. AL radiator (30 µm Al). (RSAD limit 480nA on 30 µm Al radiator))
    • GlueX Production:
      • ~300 nA on a 4.1·10^-4 R.L. radiator (50 μm diamond). (RSAD limit 400nA on 58 μm diamond))
      • ~360 nA on a 33.7·10^-5 R.L. AL radiator (30 µm Al). (RSAD limit 480nA on 30 µm Al radiator))
  • No high intensity tests foreseen
• Position Slow Lock on or FFB on (FFB doesn't operate below 50nA).
• Radiators:
  • Goniometer radiators: Desirable diamond for main running for production, for DIRC commissioning?? Alternate choice(s)?
    • Diamond JD70-103 (50 μm - 4.1·10^-4 R.L., 7×7 mm²) - new crystal - ?acceptable/bad/excellent? 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 - ?acceptable/bad/excellent? rocking curve
    • Diamond JD70-107 (55 μm - 4.6·10^-4 R.L., 7×7 mm²) - new crystal - ?acceptable/bad/excellent? rocking curve
    • Diamond JD70-109 (50 μm - 4.1·10^-4 R.L., 7×7 mm²) - new crystal - ?acceptable/bad/excellent? 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)+3 GeN) in front of lower DIRC box during DIRC commissioning.
  • Pair Spect. area: FCal Pb-W cristal testing/Hall C scintillator glass testing

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))
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
• Strait track run at the very beginning 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.
• 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. TRD/GEM will be present after removal from in front of DIRC. Aerogel may be present. Fully parasitic
• CPP trigger tests: 1 shift + 2 shifts of installation/removal. Invasive
• do we need to test fast raster beam envelope measurement with larger x-rastering (Richard Jones)??)

• 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
  • 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 1% ready ; 0% checked ; 99% not ready

Readiness for Spring 19 run

• Solenoid (Eugene/Beni)
• Surveys (Tim/Mark/Scott)
• 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
  • luminosity monitor
  • PS system (Alex Somov)
  • Polarimeter (M. Dugger/Beni/Fernando).
  • LH2 Target (Tim/Alexandre D.)
  • TAC (Hovanes/Alex Somov)
  • Slow control (Hovanes).
  • RF (Sergei)
  • Radiation monitors (Alexandre D.)
• Detector systems
  • ST (Mark Ito/Beni)
  • FDC (Lubomir)
  • CDC (Beni)
  • BCal (Elton/Mark Dalton)
  • FCal (Collin Gleason)
  • ComCal (Alex Somov) (in lieu of TAC)
  • TOF (Mark Ito/Beni)
  • DIRC (J. Stevens)
• 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?