Difference between revisions of "Template:ShortTermSchedule-RGD"
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::- '''[[Recent Changes and Current Issues]]''' | ::- '''[[Recent Changes and Current Issues]]''' | ||
::- '''[[General How-to]]''' for beam restoration procedures and Moller runs.</font></p></span> | ::- '''[[General How-to]]''' for beam restoration procedures and Moller runs.</font></p></span> | ||
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+ | ==<font color=BLACK>''' General Instructions'''</font>== | ||
+ | |||
+ | * The <b> main lights in the Hall </b> (dome lights) and the Forward Carriage lights are being kept off because of light leaks affecting some of the detectors (especially ECAL sec 2 and 3). If these lights are switched on during an access, they '''should be switched off when leaving the Hall'''. | ||
+ | :• Refer to these photos: ON: [https://logbooks.jlab.org/entry/3825712], OFF: [https://logbooks.jlab.org/entry/3825731] | ||
+ | :• We have a new dome light switch outside of the hall in the labyrinth. The lights can be turned off without entering the Hall. See logbook entry: https://logbooks.jlab.org/entry/4204460 | ||
+ | :• Note that when the dome lights are switched off, they cannot be turned back on immediately because they require 10-15 min to cool down. | ||
+ | |||
+ | * '''Beamline''': | ||
+ | :• Do not run over 30 minutes above 90 nA with a 5-pass beam without the <b> beam blocker IN </b>. The beam blocker must be IN for long-running at high currents for 5-pass operations. | ||
+ | :• If there is any concern about beam stability, ask MCC if orbit locks are on (they should be). | ||
+ | :• Document any beam condition change and send scaler GUIs to HBLOG. | ||
+ | :• If HWP is changed, start a new run: | ||
+ | ::◊ Please check with the beamline expert whether the SLM and FCUP charge asymmetry (Q-Asym (%)) readings are set properly as they will be out of range in case Eugene's script is not run by the experts after the HWP change. The absolute values should be less than 0.1%. | ||
+ | |||
+ | * For '''beam tuning and Møller runs''' | ||
+ | :• 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 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 runs in SAFE Mode''' for Production/Calibration/Various-Studies. | ||
+ | :• Turn <b> DC HV </b> 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. | ||
+ | |||
+ | *''' To access the Hall:''' | ||
+ | :• If you need to enter 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. | ||
+ | |||
+ | |} | ||
+ | |||
+ | {| {{TableStyle1}} | ||
== <font color=Navy> '''DAQ Operation''' </font> == | == <font color=Navy> '''DAQ Operation''' </font> == | ||
+ | |||
+ | | valign=top width=50% | | ||
* (New) '''STANDARD''' end of the run and the start of new run: | * (New) '''STANDARD''' end of the run and the start of new run: | ||
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:• '''Configuration''' is <tt>'''PROD66/67'''</tt> (or <tt>'''PROD66_PIN'''</tt> for fast reconstruction of ''some calibration/reference runs'' from the cache disk); | :• '''Configuration''' is <tt>'''PROD66/67'''</tt> (or <tt>'''PROD66_PIN'''</tt> for fast reconstruction of ''some calibration/reference runs'' from the cache disk); | ||
:• In case of '''DAQ Disk space alarm''', call the DAQ expert. | :• In case of '''DAQ Disk space alarm''', call the DAQ expert. | ||
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:• At the start and end of every run, check that the data filled in the '''[https://clasweb.jlab.org/rcdb Run Condition Data Base (RCDB)]''' is correct, especially the fields filled manually. | :• At the start and end of every run, check that the data filled in the '''[https://clasweb.jlab.org/rcdb Run Condition Data Base (RCDB)]''' is correct, especially the fields filled manually. | ||
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− | + | == '''Reference Values''' == | |
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− | * | + | === 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 [https://logbooks.jlab.org/entry/4192230]; x= -1.4 mm; y= 0.0 mm | ||
+ | * Tagger (2C24A) [https://logbooks.jlab.org/entry/4191955]: x= -2.0 mm; y= +0.6 mm | ||
+ | * 2C21A [https://logbooks.jlab.org/entry/4122116]: x= -0.4 mm; y= +0.6 mm (''less important; values form RG-C'') | ||
− | + | === IA for Q Asymmetry === | |
+ | * HWP IN: https://logbooks.jlab.org/entry/4194811 and https://logbooks.jlab.org/entry/4195453 | ||
+ | * HWP OUT: https://logbooks.jlab.org/entry/4195738 and https://logbooks.jlab.org/entry/4195733 |
Revision as of 21:55, 9 November 2023
Run Coordinator: Raphael Dupre (757) 575-7540
PDL: Nathan Baltzell (9-)757 876-1789 , x5902 office
RG/Analysis Coordinator (AC): Lamiaa El Fassi (630) 605-4259
Daily RC/OA 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 and inform the Crew Chief and RC.
- In case of evacuation of the Counting Room (e.g., due to a fire alarm in the Counting House), grab the shift expert phone, exit the room through its door to the outside. Do not go to the hallway! Call the RC from outside. RC will call MCC to take the beam away from Hall B and also will inform other Hall B staff members.
- 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 "Shift Worker" tab as 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.
- ◊ Do not spend more than 15-20 min trying to fix a problem. With any issue, contact On-Call Experts or RC.
- ◊ Review these important links:
- - Recent Changes and Current Issues
- - General How-to for beam restoration procedures and Moller runs.
Run Plan, Thur., Nov. 9th - Fri., Nov. 17th, 2023
P.S.: If the beam is widely fluctuating above 95 nA, please ask MCC to narrow down the fluctuation margin and give us the required 95 nA +/- 3nA based on 2C21A reading. They could put the beam current lock on 2C21A in case that may help with the wide fluctuation as it's currently done. We will keep the beam blocker IN while using this target combination!
|
General Instructions
|
DAQ Operation
|
|
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 [3]; x= -1.4 mm; y= 0.0 mm
- Tagger (2C24A) [4]: x= -2.0 mm; y= +0.6 mm
- 2C21A [5]: x= -0.4 mm; y= +0.6 mm (less important; values form RG-C)