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

Revision as of 18:11, 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

Spring 2019 time chart:

Spring 2019 commissioning/run time chart. Week 1.
The horizontal scale is the time during which beam is available (in other words, it would be the real time with 100% of beam efficiency).
The task time estimates given on the plot have 100% contingency.

Run time chart. Week 2.

Run time chart. Week 3.

Accelerator status

1. • Link to accelerator short term schedule

Hot Checkout

1. Hot Check OUT Status 99% ready ; 1% checked ; 0% not ready

Readiness for Spring 19 run

• Solenoid (Eugene/Beni)
  • Started HCO. Done
  • Will test ramp to 300 A the magnet. Done
  • Will ramp the magnet for the run once beam is close to delivery.
• Surveys (Tim/Mark)
  • (ComCal will be surveyed during the DIRC-PrimEx transition)
  • (The Be target will be surveyed during the DIRC-PrimEx transition)
  • DIRC, was surveyed Wednesday, Jan 30th and checked again on Monday (02/04).
• DAQ (Sergei).
  • Implementing DIRC's scalers and their transfer to EPICS. Done.
  • Beni started cosmic runs ⇒ Needed to power the detectors. Started on Jan. 30th. Things lookin good.
• Trigger (Alex S.)
  • During DIRC commissioning, trigger will be the same as for GlueX production runs.
  • A LED trigger for DIRC need has been implemented and tested. It seems to be working. Justin checked that everything is fine.
  • DIRC readout has been integrated to the main physics trigger.
  • During PrimEx-Eta run, trigger will be the same as for ComCal Fall 2018 commissioning.
  • Implementing a new feature in SSP, to read the total energy from the crates for every 4ns bin. This would be for raw mode. The implementation is going well and may be available for this run.
  • Need to set-up the CPP trigger. This will be done during the day allocated to CPP tests. Testing the special trigger should take about 2h of beam time.
• Beam line
  • Beam pipe
    • Old beam pipe is installed and will be used for DIRC commissioning
    • New beam pipe to be installed during transition DIRC-PrimEx transition, and used for PrimEx-Eta run. The old pipe will be removed during the transition and there will be no beam pine during the PrimEx run
  • Diamond status (Tim/Hovanes).
    • Discussion to install a low quality thick diamond (U.Conn. inventory) for DIRC commissioning: Schedule is too tight.
  • Tagger hodoscope (A. Somov)
    • Ready. There are several counters that are broken/have problems (see logbook entry 3643240. There is no spare nor time to fix them during the run. They will be dealt with at the calibration stage.
    • Sasha reminded us that the low-energy counters will need to be switched off during the DIRC high intensity runs.
  • Tagger microscope (Richard Jones/Beni)
    • Dark rate data taken Monday (Jan. 21st)
  • Goniometer (Hovanes).
    • Ready
  • Collimator Motion (Hovanes).
  • Active collimator detectors(Richard Jones/Alexandre Deur)
    • Act. Col. baselines have been zeroed mid July 2018 and checked on 08/15. Stable enough. They don't need to be revisited for the Spring 2019 run.
    • Ready
  • Profiler
  • luminosity monitor (Hovanes).
  • Halo monitors
    • They have not been touched. They should be ready. To be checked.
    • Should be ready
  • luminosity monitor
  • PS system (Alex Somov)
    • Ready.
  • Beam line magnets (PS magnet sweeping magnet and tagger quads).
  • Polarimeter (Sebastian Cole/M. Dugger).
  • LH2 Target (Tim/Alexandre D.)
    • Target has been cool-down tested. It is working fine.
  • Be target
  • ⁴He target
  • TAC (Hovanes/Alex Somov)
    • Plan to cured after the Fall 2018 run was not performed.
  • Slow control (Hovanes).
    • Working on DIRC. Missing Temperature voltages and callers from CODA. Some alarms are still missing.
    • ComCal. No new work needed. It is ready.
  • RF (Sergei)
    • Done: Checked with cosmic trigger. Looks fine
  • Radiation monitors (Alexandre D.)
    • Operational
• Detector systems
  • ST (Mark Ito)
    • Ready and tested (Beni)
    • Will be used for DIRC commissioning. Will remain in place for PrimEx-Eta run and used for the ⁴He run, but will be turned off for the Be part of the run.
    • Random trigger has been implemented (for Beni to monitor neutron radiation damage).
  • FDC (Lubomir)
    • Got cosmic trigger to get data. Things look fine.
    • Gas chromatograph installed near the gas panel. Connected to the FDC and CDD output line.
    • Chiller kept tripping. The problem was fixed by disabling an interlock. The other problem (communication. Maybe due to a IOC) went away. Reason unknown. In all, the chiller is operational.
    • Lights for the camera near the bubbler/rotameter have been set-up (Hall's lights are dimmed because of DIRC).
  • CDC (Beni)
    • Up and running.
    • Flow controller replaced by a rotameter. It will be used from now on instead of the flow controller , unless we understand the origin of the green thing that clogged the flow controller.
  • BCal (Elton/Mark D.)
    • Did LED run on March 29th. It looks good.
    • Will start HCO
    • Low voltages issue (could not turn on) fixed: Two channels had the wrong parameter settings.
  • FCal (Collin Gleason)
    • BCal turned on fine. Need to turn on LED pulser to get some data.
    • One FADC module is dead and two modules have a bad channel. Sasha to replace the bad module on 02/06.
    • HCO done
  • ComCal (Alex Somov)
    • Taking test LED data. They look fine.
  • TOF (Mark Ito/Beni)
    • Ready: It was turned on and looked fine (Beni).
    • Checked baselines with cosmic data.
    • One HV broken was fixed (02/05) by Beni.
  • DIRC (J. Stevens)
    • Fixed a few issues in the box (01/20th).
    • Since 01/24th, everything is connected and readout with low rate trigger looks good.
    • Took high rate (LED) triggers. Looking at it. Need to keep taking LED data to set-up threshold for each channel. LED data will be taken until beam comes.
• RSAD and ESAD Safety documents (Lubomir):
  • Documents approved and ready for shift takers to sign.
  • DIRC replied ro readiness review recommendations on 01/25th.
  • New ComCal OSP submitted and signed (the previous version expired March 2nd.)
• Phones
  • System experts should have found their on-call phones by now.
  • System experts should have their phone charged.
  • System experts should start carrying their (charged) phone.
• Hall Status/safety (Mark/Tim)
• Other topics?