Template:ShortTermSchedule-RGD

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Run Coordinator: Susan Schadmand (757) 575-7540 (or 757-223-6213)

PDL: Nathan Baltzell (9-)757 876-1789 , x5902 office

RG/Analysis Coordinator (AC): Lamiaa El Fassi (630) 605-4259

Daily RC Meetings at 13:00 in CH Room 200C, and on ZOOM: URL Link (Meeting ID: 1611984219; Passcode: RGD-RC23), except on Wednesdays, which is on ZOOM ONLY @ 15:30 due to the conflict with the 13:30 MCC Scheduling/Planning meeting.

Important Notes

Do NOT change FSD settings without approval from RC or beamline expert!

  • In case of medical or fire emergency, call 9-911 from a LANDLINE phone in the Counting House
  • If you have symptoms or a positive COVID test, do NOT come to your shift - instead, inform the PDL and the RC and JLab medical services immediately to arrange replacements.
  • Remote shift: If needed, worker shifts can be taken from off-site. Inform the PDL and RC. Also, make sure that you follow the instructions under the "Worker Shift" Tab - you need some lead time to set up!
  • Note to shift takers, please:
◊ Read the logbook, be aware of previous 24 hours
◊ Arrive at least 10 minutes early for shift change
◊ Refresh the run wiki pages; look over them every shift
- Follow the expert/worker shift instructions
◊ Communicate with your co-shift person
- The shift expert should know about and refer to logbook entries in their shift summary
- The shift worker should discuss an issue with the shift expert before making extra logbook entries
◊ For advice, do not hesitate to call the RC first and foremost, day or night.

Current Issues

  • BMT/FMT/SVT:
◊ If new hot channels appear, please call the MVT/SVT/MM expert Yuri Gotra (757-541-7539) to address them.
◊ SVT low voltage alarms (minor, every ~2 hours) is a communication problem in the system, not an issue with the voltages. Acknowledge the alarm.
  • BPM alarms on 2C21A are minor. If frequent, contact the beamline expert who might change the alarm limits.
  • Until further notice, please ignore for now the empty six sectors "ECAL_adcSum" in mon12 histograms as that is under investigation to be either fixed or removed.
  • Tagger magnet procedure If the tagger magnet needs to be turned off, tell the operator to use only the script only for degaussing, NEVER do "by hand"!
  • Change the LD2 and solid targets positions in the hall: In case of questions from MCC about the necessary controlled access to, please refer to the logbook entry #: 4196113 for the access requirements.

Run Plan for Fri., Oct 13 - Wed., Oct 18, 2023

Production on CxC target:

- Beam current: 50 nA
- Run duration: 100 M events
- DAQ configuration: PROD66
- Trigger file: rgd_out_v1.0.trg

DAQ configuration

  • Configuration is PROD66 (or PROD66_PIN for fast reconstruction of some calibration/reference runs from the cache disk.
  • Trigger files:
◊ Inbending production: rgd_inb_v1.0.trg;
◊ Outbending production: rgd_out_v1.0.trg.
  • NOTE: UNLESS a RICH problem crashes the DAQ, do NOT interrupt an otherwise smooth run to make a RICH recovery - instead, do this in between runs. Review its new recovery procedure in HBLOG entry #:
  • NOTE: BOTH the shift expert AND the shift worker MUST check and reset monitoring histograms at least once every 30-60 minutes to make sure there are no major detector problems. Sometimes, it is the only way to know that a roc needs to be rebooted.
  • At the end of each run, follow the STANDARD DAQ RESTART SEQUENCE:
◊ "end run."
◊ If the run ended correctly and you will run with the same configuration and trigger file, then: "prestart", "go"
◊ If you are changing configuration (between PROD6X and PROD6X_PIN) or trigger file: "Cancel", "reset", "configure", "download", "prestart", "go".
◊ If the run did not end correctly or if any ROCs had to be rebooted:
- "Cancel", "reset"
- "configure", "download", "prestart", "go"
  • Pop-up window: Enter the beam current and the type of runs (e.g., Production) in the as "Comment" field.
  • After each step, make sure it is completed in the Run Control message window. If a ROC has crashed, find which one it is, issue a roc_reboot command ON JUST THAT ROC, and try again. Contact the DAQ expert if there are any questions.

Reference Values

FSD Thresholds from RG-D

  • Upstream: 2 kHz
  • Midstream: 2 kHz
  • Downstream: 100 kHz
  • BOM: 50 kHz
  • 5 ms dwell time

Harp Scan References from RG-D

  • 2H01 [1]; x= -1.4 mm; y= 0.0 mm
  • Tagger (2C24A) [2]: x= -2.0 mm; y= +0.6 mm
  • 2C21A [3]: x= -0.4 mm; y= +0.6 mm (less important; values form RG-C)

IA for Q Asymmetry

General Instructions

  • The main lights in the Hall (dome lights) and the Forward Carriage lights are being kept off because of light leaks affecting some of the detectors. If these lights are switched on during an access, they should be switched off when leaving the Hall. Note that the dome lights, when switched off, cannot be turned back on immediately because they require 10-15 min to cool down. Now we have a new dome light switch outside of the hall in the labyrinth. The lights can be turned off without entering the hall.
  • Do not run more than 30 minutes above 90 nA with a 5-pass beam without the beam blocker in front of the Faraday cup . Put beam blocker in for long-running at high currents for 5-pass operations.
  • Turn DC HV off only for beam tuning; if no beam is available or when the beam is stable, keep them on even if you are not taking data.
  • RICH issues: put screen shots of scalers and temperatures in the RICH logbook.
  • For beam tuning and Møller runs, please make sure the SVT/MVT are set as follows: SVT: LV ON; HV OFF, and MVT: LV ON; HV ON in SAFE Mode.
◊ When turning MVT OFF, do not press "BMT HV OFF" from HV->Overview->Actions, but instead select BMT HV ON - Safe Voltage. The same thing applies to FMT select FMT HV ON - Safe Voltage.
◊ When turning MVT ON: go to HV->Overview->Actions, and select BMT (/FMT) HV ON - Full Voltage.
◊ DO NOT start Production/Calibration/Various-Studies runs in the SAFE Mode.
  • With any issue, contact On-Call Experts or RC - do not spend more than 15-20 min trying to fix the problem. If the phone is not answered, try the "Page Experts" button on top of CLASCSS.
  • Check for and read any comments to log-book entries made during your shift.

Every Shift:

  • Follow the run plan as outlined by RC (/AC).
  • If there is any concern about beam stability, ask MCC if orbit locks are on (they should be).
  • Keep shift summary up to date in HBLOG. Record all that happens.
  • Document any beam condition change and send scaler GUIs to HBLOG.
  • If HWP is changed, start a new run.
  • Upload spectra from clas12mon at the beginning and end of the shift and cross-check with reference spectra (make sure you select the SAME SECTOR for the reference plots on tabs with multiple sectors);
◊ Reset clas12mon every ~2 hours and inspect spectra (some detectors have buttons at the bottom to toggle between the sectors -- please check all of them).

Every Run:

  • Check values at the start of every run and log screenshots of:
◊ Main scaler GUI display
◊ Trigger rate GUI
◊ Beam strip charts
◊ FTC scalers
  • At the start and end of every run, check that the data filled in the database run list is correct (especially fields that are filled in manually, like beam current and comments). This replaces the previously used spreadsheet.

To access the Hall:

  • If you need to go down into Hall B, alert Denny Insley (757-897-9060, cell/text: 757-810-9576) and the Run Coordinator (757-575-7540).
  • Check in with the shift personnel before entering the hall.
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