Difference between revisions of "Run Group A"
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= Short Term Schedule = | = Short Term Schedule = | ||
<center><font color=blue size=4> | <center><font color=blue size=4> | ||
− | ''' CLAS12 Run Group A, | + | ''' CLAS12 Run Group A, Spring 2019 </font> '''<br> |
− | ''' Beam energy 10. | + | ''' Beam energy 10.2 GeV (5 pass) '''<br> |
''' Important: Document all your work in the logbook! '''<br> | ''' Important: Document all your work in the logbook! '''<br> | ||
− | ''' Remember to fill in the [https://docs.google.com/spreadsheets/d/1NpojoOi7_gTt_abxgKoHBlofOL7iNWDrtYuiOJ1zoMw/edit?usp=sharing run list] at the beginning and end of each run | + | ''' Remember to fill in the [https://docs.google.com/spreadsheets/d/1NpojoOi7_gTt_abxgKoHBlofOL7iNWDrtYuiOJ1zoMw/edit?usp=sharing run list] at the beginning and end of each run |
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</center> | </center> | ||
− | == RC: | + | == RC: Daniel S. Carman == |
* (757) 575-7540 | * (757) 575-7540 | ||
* 9 575 7540 from Counting Room | * 9 575 7540 from Counting Room | ||
− | * [mailto: | + | * [mailto:carman@jlab.org carman@jlab.org] |
− | == PDL: | + | == PDL: Maurizio Ungaro == |
* (757) 876-1789 | * (757) 876-1789 | ||
* 9 876-1789 from Counting Room | * 9 876-1789 from Counting Room | ||
− | * [mailto: | + | * [mailto:ungaro@jlab.org ungaro@jlab.org] |
<br> | <br> | ||
+ | |||
+ | {| {{TableStyle1}} | ||
− | + | | valign=top width=50% | | |
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− | + | == <font color=blue>''' Run Plan: March. 20-27'''</font>== | |
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− | * | + | * Put run plan here |
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− | + | DAQ config: PROD66 | |
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− | + | Trigger file: rga_vXX.trg | |
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− | * | + | <!--* Hall-B should be closed before 2 pm. As soon Hall will be in beam permit, energize the tagger. When beam is available proceed with establishing the beam on the tagger yoke dump (see instructions [https://wiki.jlab.org/clas12-run/images/e/e3/Estab_beam.pdf]). |
− | * | + | * Perform Moller runs, use "right" target, two measurements with 1/2 wave plate IN (as is now) then OUT. Leave 1/2 wave plate in "IN" position for data taking. |
− | * | + | * When finished the Moler runs |
+ | * If beam is acceptable degauss the tagger magnet and send the beam to Faraday cup, make sure beam is clearly seen on the downstream viewer and the halo counter rates are as expected (compare to earlier rates). Perform 2H01 harp scan(follow instructions [https://wiki.jlab.org/clas12-run/images/e/e3/Estab_beam.pdf]). , ''Note harp wire was fixed'' | ||
− | * | + | * After beam is established on FC and the beam profile is acceptable, start bringing CLAS12 is ON, make sure beam position and detector and halo rates are as expected for full target. |
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+ | * Continue production data on LH2 target at 50 nA (<b> if the trigger rate will be higher than 20 kHz, lower beam current to stay <~20 kHz</b>. Data taking is 4 hour-long runs with DAQ configuration '''PROD66''', and trigger '''rga_vXX.trg'''. | ||
+ | <font color=red>'' [https://clas12mon.jlab.org/mon12/histograms/?reference=3630375 Compare the monitoring histograms from clas12mon to the reference and troubleshoot as needed.] ''</font> --> | ||
− | < | + | <b><font color=red> At the end of each run, follow the standard DAQ restart sequence ''' <br> |
− | + | ''(Note, this might be different from the instructions coming up on RunControl.)'' | |
− | '''<font | + | * "end run", "cancel", "reset" |
+ | * if the run ended correctly: | ||
+ | ** '''"download", "prestart", "go"''' | ||
+ | * if the run did not end correctly or if any ROCs had to be rebooted: | ||
+ | ** "configure", "download", "prestart", "go" | ||
+ | </font></b> | ||
− | < | + | <b> Weekly plan for remainder of the run: </b> |
− | + | * Moller runs after coming back a long down due to beam studies of RF recovery (Mondays or Tuesdays) | |
− | * | + | * empty target run at 150 nA, one 4 hour run with production DAQ configuration |
− | * | + | * low luminosity runs for 8 hours, two 4-hour long runs with full target at 5 nA |
− | * | + | * rest of the time production running at 50 nA on full target |
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+ | == <font color=blue>''' References and Standards:'''</font>== | ||
+ | ''(last update 3/13/2019- 12:00 PM)'' | ||
+ | <b> Restoration of Beam to Hall B</b> | ||
− | + | <b> Nominal Beam Positions </b> | |
+ | *2H01, X: +3.0 mm, Y: -1.0 mm | ||
+ | *2C24, X: +0.25 mm, Y: 0.35 mm | ||
− | < | + | <b> FSD Thresholds </b> |
+ | * Upstream: 2000 Hz | ||
+ | * Midstream: 2000 Hz | ||
+ | * Downstream: 500000 Hz | ||
+ | * BOM: 35000 | ||
− | + | <b> Reference Harp Scans for Beam on Tagger Dump: </b> 2C21 [https://logbooks.jlab.org/entry/3649356], 2C24 [https://logbooks.jlab.org/entry/3649362] | |
− | < | + | <b> Reference Harp Scans for Beam on Faraday Cup: </b> 2C21 [https://logbooks.jlab.org/entry/3649467], 2C24 [https://logbooks.jlab.org/entry/3649472], 2H01 [https://logbooks.jlab.org/entry/3656599] |
− | |||
− | + | <b> Reference Monitoring Histograms (20 nA, production trigger) </b> [https://logbooks.jlab.org/entry/3650218] | |
+ | <b> Reference Monitoring Histograms (35 nA, production trigger) </b> [https://logbooks.jlab.org/entry/3650729] | ||
− | < | + | <b> Reference Scalers and Halo-Counter Rates: </b> |
− | * | + | * Well-tuned CW beam on FC, Full LD2 target, CLAS12 ON: 5 nA [https://logbooks.jlab.org/entry/3649861], 10 nA [https://logbooks.jlab.org/entry/3649888], 20 nA [https://logbooks.jlab.org/entry/3649905], 30 nA [https://logbooks.jlab.org/entry/3649916], 40 nA [https://logbooks.jlab.org/entry/3649938], 50 nA [https://logbooks.jlab.org/entry/3649959], 60 nA [https://logbooks.jlab.org/entry/3649970], 75 nA [https://logbooks.jlab.org/entry/3649985] |
− | + | * Well-tuned CW beam on FC, Empty Target, CLAS12 OFF: 5 nA [https://logbooks.jlab.org/entry/3649436] | |
− | * | + | * Well-tuned beam during Moller run [https://logbooks.jlab.org/entry/3649364] |
− | * | + | * Well-tuned beam on Tagger Dump at 5 nA during harp scans: [https://logbooks.jlab.org/entry/3649358] |
− | * [https:// | + | * Reference FTC histogram for 5 nA running: [https://logbooks.jlab.org/entry/3665122] |
− | + | <b> SVT acceptable currents: </b> <10 nA (typically < 1 nA) with no beam and no HV; ~< 400 nA (HV ON, no beam); 10 nA [https://logbooks.jlab.org/entry/3649889], 20 nA [https://logbooks.jlab.org/entry/3649911], 30 nA [https://logbooks.jlab.org/entry/3649920], 40 nA [https://logbooks.jlab.org/entry/3649941], 50 nA [https://logbooks.jlab.org/entry/3649960], 60 nA [https://logbooks.jlab.org/entry/3649972], 75 nA [https://logbooks.jlab.org/entry/3649986] | |
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==<font color=blue>''' General Instructions''':</font>== | ==<font color=blue>''' General Instructions''':</font>== | ||
− | |||
* 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 cooldown. | * 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 cooldown. | ||
− | * Do not run more than | + | * Do not run more than 30 minutes above 30 nA with 5-pass beam without the beam blocker in front of 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 beam is stable, keep them on even if you are not taking data. | * Turn DC HV off only for beam tuning; if no beam is available or when beam is stable, keep them on even if you are not taking data. | ||
* In case of loss of communication with IOCBTARG, follow instructions at https://logbooks.jlab.org/entry/3502218 | * In case of loss of communication with IOCBTARG, follow instructions at https://logbooks.jlab.org/entry/3502218 | ||
− | * With any issue contact On-Call Experts or RC - do not spend more than 15-20 min trying to fix the problem. | + | * With any issue contact On-Call Experts or RC - do not spend more than 15-20 min trying to fix the problem. |
− | + | * Check for and read any comments to log-book entries made during your shift. | |
− | |||
− | |||
'''Every Shift:''' | '''Every Shift:''' | ||
− | *Follow run plan as outlined by RC | + | * Follow run plan as outlined by RC |
* If any concern about beam stability, ask MCC if orbit locks are on (they should be). | * If 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. | * Keep shift summary up to date in HBLOG. Record all that happens. | ||
− | |||
* Document any beam condition change and send scaler GUIs to HBLOG | * Document any beam condition change and send scaler GUIs to HBLOG | ||
* [https://bta.acc.jlab.org Fill out BTA] hourly. Click "Load from EPICS" to automatically fill the left side. | * [https://bta.acc.jlab.org Fill out BTA] hourly. Click "Load from EPICS" to automatically fill the left side. | ||
− | * | + | * Upload spectra from clas12mon at begin and end of shift and cross-check with reference spectra |
+ | ** Reset clas12mon every ~2 hours and inspect spectra | ||
* Fill and submit the [https://logbooks.jlab.org/checklists/151 shift checklist in the logbook] | * Fill and submit the [https://logbooks.jlab.org/checklists/151 shift checklist in the logbook] | ||
− | + | * Monitor the SVT Slow Controls status, post plot of current stability in the HBSVT elog once per shift. | |
− | * | + | * As of March 9 we no longer have to stop and start the gas flow of the FTT (see logbook entry [https://logbooks.jlab.org/entry/3665232] for more details). |
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'''Every Run:''' | '''Every Run:''' | ||
− | + | *Log screenshots of: | |
− | + | ** main scaler GUI display | |
− | * main scaler GUI display | + | ** Trigger rate gui |
− | * | + | ** Beam strip charts |
− | * Trigger rate gui | + | ** FTC scalers |
− | * | + | * Fill out the run info in [https://docs.google.com/spreadsheets/d/1NY1GNIZXPtpB9u4QwP6eNRSrvDkCzFmhQg5RR3V3j7E/edit#gid=0 run list] at the beginning and at the end of each run. |
− | * Beam strip charts | + | * <b> When checking the ECAL response, make sure to look at the histograms for each sector by using the sector buttons at the bottom of the clas12mon window - if adcecal* or/and adcpcal* ROC crashes, there will be no alarm and the histograms are the way to notice this issue. |
− | * | + | * Same holds for FT.</b> |
|} | |} | ||
+ | |||
+ | |||
+ | * '''Note 1: Be very mindful of the background rates in the halo counters, rates in the detectors, and currents in the SVT for all settings to ensure that they are at safe levels.''' | ||
+ | The integrated rates on the upstream counters have to be in the range 0-15 Hz (rates up 100 Hz are acceptable) and the rates on the midstream counters have to be in the range 10-20 Hz (acceptable up to 50 Hz) @50 nA. Counting rates in the range of hundreds of Hz may indicate bad beam tune or bleed-through from other Halls. | ||
+ | |||
+ | * ''' Note 2: At the end of each run, follow the standard DAQ restart sequence ''' | ||
+ | "end run", "cancel", "reset", then if the run ended correctly, '''"download", "prestart", "go"'''. If the run did not end correctly or if any ROCs had to be rebooted, "configure", "download", "prestart", "go". | ||
+ | |||
+ | After each step, make sure it is complete in the Run Control message window. If a ROC has crashed, find which one it is and issue a roc_reboot command and try again. Contact the DAQ expert if there are any questions. | ||
+ | |||
+ | * '''Note 3: FTOF HVs: The goal is to minimize the number of power cycles of the dividers. | ||
+ | ** should be turned off during the initial beam tuning down to the Faraday Cup after CLAS12 has been off for a long shutdown, when doing a Moller run, when doing harp scans, or if there is tuned/pulsed beam in the upstream beamline.''' | ||
+ | ** should be left on after an initial beam tune has been established and if there are only minor steering adjustments and “tweaks” being made. | ||
+ | ** if shift workers have doubts what to do with the HVs, they can always contact the TOF on-call expert for advice. | ||
+ | |||
+ | * '''Note 4: In case of a Torus and/or Solenoid Fast Dump do the following: | ||
+ | *# Notify MCC to request beam OFF and to drop Hall B status to Power Permit | ||
+ | *# Call Engineering on-call | ||
+ | *# Make separate log entry with copies to HBTORUS and HBSOLENOID logbooks. In the "Notify" field add Ruben Fair, Probir Goshal, Dave Kashy and esr-users@jlab.org | ||
+ | *# Notify Run Coordinator | ||
+ | *# Turn off all detectors''' | ||
+ | |||
+ | *'''Note 5: When beam is being delivered to the Faraday Cup:''' | ||
+ | *# the Fast Shut Down elements: Upstream, Midstream, Downstream, BOM, and Solenoid should always be in the state <font color=red>UNMASKED</font> | ||
+ | *# No changes to the FSD threshold should be made without RC or beamline expert approval | ||
+ | |||
+ | *'''Note 6: Any request for a special run or change of configuration has to be approved by the RC & documented''' | ||
+ | |||
+ | *'''Note 7: Carefully check the BTA every hour and run the script <font color=red>btaGet.py</font> to print for you what HAS TO BE in BTA for this hour. Edit BTA if it is incorrect.''' | ||
+ | |||
+ | *'''Note 8: Reset CLAS12MON frequently to avoid histogram saturation.''' | ||
+ | |||
+ | *'''Note 9: Shift workers must check the occupancies! Use this tool to compare to previous runs: [https://clas12mon.jlab.org/mon12/histograms/?reference=3650729]''' | ||
+ | <!--[https://clas12mon.jlab.org/mon12/histograms/?reference=3621580]'''--> | ||
+ | |||
+ | *'''Note 10 When you have to turn the whole MVT off, do not press "All HV OFF": Instead go to 'Restore settings' from the MVT overview screen: | ||
+ | *# SafeMode.snp for beam tuning and Moeller runs | ||
+ | *# MV_HV_FullField.snp for full solenoid field | ||
+ | *# MV_HV_MidField.snp wgeb solenoid < 4T | ||
+ | ''' | ||
+ | *'''NOTE 11 Check the vacuum periodically, make sure vacuum id not higher than 5e-5 ''' | ||
+ | |||
+ | *''' NOTE 12 Always reset the CFD threshold after all power off/on on the CND CAMAC crate''' | ||
+ | After the CAMAC crate (camac1) holding the CND CFD boards is switched off for any reason, it is mandatory to reset the associated thresholds typing the | ||
+ | following command from any clon machine terminal: $CODA/src/rol/Linux_x86_64/bin/cnd_cfd_thresh -w 0 | ||
+ | |||
+ | If this command is failing and the crate is not responding, reboot it as follows: roc_reboot camac1 | ||
+ | |||
+ | *'''NOTE 13 ''' Shift workers should anyway check routinely scalers to verify they update correctly and make a logbook entry if anomalies are observed after starting a new run. | ||
+ | |||
+ | *'''NOTE 14: To solve common SVT issues see https://logbooks.jlab.org/entry/3615766''' | ||
+ | |||
+ | *'''NOTE 15:''' | ||
+ | For RICH recovery procedures, please see Log entry https://logbooks.jlab.org/entry/3562273. This would apply in the cases of 1. DAQ crash: rich4 is not responding or 2. RICH alarms (LV,missing tile, temperature etc). If it does not work or you are uncertain about what to do, contact the RICH expert on call. <u>Please, note </u> that missing tiles typically occur due to lost communication. Keep in mind that the recovery procedure will kill DAQ. If DAQ is running for other purpose, rather than data taking (for which the RICH acceptance would be important) do not initiate the recovery procedure. | ||
+ | ** The most critical parameter for RICH is the temperature of the photosensors. If the temperature rises above limits, an interlock will automatically turn the RICH HV and LV. If this happens, notify the expert on call and keep taking data without RICH. | ||
+ | |||
+ | *'''NOTE 16:''' Asymmetry on FTCal ADC Scalers: If the beam current is 5 - 10 nA, and the observed asymmetry is out of specs, i.e. > +-2.5%, check (1) that the beam position is according to specs, (2) the response of the rest of CLAS (compare the scalers of FTOF, CTOF, ECAL, etc. from the Scalers GUI to the reference for that current, as posted above). If positions and other detectors do not show any anomalies, keep running. The ADC scalers require at least ~15 nA for a reliable response. | ||
= Monitoring = | = Monitoring = |
Revision as of 10:06, 14 March 2019
Shift ScheduleShift ChecklistHot CheckoutBeam Time Accounting
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JLab Logbooks
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If calling local numbers (with area code prefix 757) from the counting room dial 9+[last 7 digits]. To call other area codes dial 91+[10 digit number]
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- Note, all non-JLab numbers must be dialed with an area code. When calling from a counting-house landline, dial "9" first.
- To call JLab phones from outside the lab, all 4-digit numbers must be preceded by 757-269
- Click Here to edit Phone Numbers. Note, you then also have to edit the current page to force a refresh.
Click Here to edit Phone Numbers. Note, you then also have to edit this page to force a refresh.
CLAS12 Run Group A, Spring 2019
Beam energy 10.2 GeV (5 pass)
Important: Document all your work in the logbook!
Remember to fill in the run list at the beginning and end of each run
RC: Daniel S. Carman
- (757) 575-7540
- 9 575 7540 from Counting Room
- carman@jlab.org
PDL: Maurizio Ungaro
- (757) 876-1789
- 9 876-1789 from Counting Room
- ungaro@jlab.org
Run Plan: March. 20-27
Trigger file: rga_vXX.trg
Weekly plan for remainder of the run:
References and Standards:(last update 3/13/2019- 12:00 PM) Restoration of Beam to Hall B Nominal Beam Positions
FSD Thresholds
Reference Harp Scans for Beam on Tagger Dump: 2C21 [1], 2C24 [2] Reference Harp Scans for Beam on Faraday Cup: 2C21 [3], 2C24 [4], 2H01 [5] Reference Monitoring Histograms (20 nA, production trigger) [6] Reference Monitoring Histograms (35 nA, production trigger) [7] Reference Scalers and Halo-Counter Rates:
SVT acceptable currents: <10 nA (typically < 1 nA) with no beam and no HV; ~< 400 nA (HV ON, no beam); 10 nA [20], 20 nA [21], 30 nA [22], 40 nA [23], 50 nA [24], 60 nA [25], 75 nA [26]
|
General Instructions:
Every Shift:
Every Run:
|
- Note 1: Be very mindful of the background rates in the halo counters, rates in the detectors, and currents in the SVT for all settings to ensure that they are at safe levels.
The integrated rates on the upstream counters have to be in the range 0-15 Hz (rates up 100 Hz are acceptable) and the rates on the midstream counters have to be in the range 10-20 Hz (acceptable up to 50 Hz) @50 nA. Counting rates in the range of hundreds of Hz may indicate bad beam tune or bleed-through from other Halls.
- Note 2: At the end of each run, follow the standard DAQ restart sequence
"end run", "cancel", "reset", then if the run ended correctly, "download", "prestart", "go". If the run did not end correctly or if any ROCs had to be rebooted, "configure", "download", "prestart", "go".
After each step, make sure it is complete in the Run Control message window. If a ROC has crashed, find which one it is and issue a roc_reboot command and try again. Contact the DAQ expert if there are any questions.
- Note 3: FTOF HVs: The goal is to minimize the number of power cycles of the dividers.
- should be turned off during the initial beam tuning down to the Faraday Cup after CLAS12 has been off for a long shutdown, when doing a Moller run, when doing harp scans, or if there is tuned/pulsed beam in the upstream beamline.
- should be left on after an initial beam tune has been established and if there are only minor steering adjustments and “tweaks” being made.
- if shift workers have doubts what to do with the HVs, they can always contact the TOF on-call expert for advice.
- Note 4: In case of a Torus and/or Solenoid Fast Dump do the following:
- Notify MCC to request beam OFF and to drop Hall B status to Power Permit
- Call Engineering on-call
- Make separate log entry with copies to HBTORUS and HBSOLENOID logbooks. In the "Notify" field add Ruben Fair, Probir Goshal, Dave Kashy and esr-users@jlab.org
- Notify Run Coordinator
- Turn off all detectors
- Note 5: When beam is being delivered to the Faraday Cup:
- the Fast Shut Down elements: Upstream, Midstream, Downstream, BOM, and Solenoid should always be in the state UNMASKED
- No changes to the FSD threshold should be made without RC or beamline expert approval
- Note 6: Any request for a special run or change of configuration has to be approved by the RC & documented
- Note 7: Carefully check the BTA every hour and run the script btaGet.py to print for you what HAS TO BE in BTA for this hour. Edit BTA if it is incorrect.
- Note 8: Reset CLAS12MON frequently to avoid histogram saturation.
- Note 9: Shift workers must check the occupancies! Use this tool to compare to previous runs: [28]
- Note 10 When you have to turn the whole MVT off, do not press "All HV OFF": Instead go to 'Restore settings' from the MVT overview screen:
- SafeMode.snp for beam tuning and Moeller runs
- MV_HV_FullField.snp for full solenoid field
- MV_HV_MidField.snp wgeb solenoid < 4T
- NOTE 11 Check the vacuum periodically, make sure vacuum id not higher than 5e-5
- NOTE 12 Always reset the CFD threshold after all power off/on on the CND CAMAC crate
After the CAMAC crate (camac1) holding the CND CFD boards is switched off for any reason, it is mandatory to reset the associated thresholds typing the following command from any clon machine terminal: $CODA/src/rol/Linux_x86_64/bin/cnd_cfd_thresh -w 0
If this command is failing and the crate is not responding, reboot it as follows: roc_reboot camac1
- NOTE 13 Shift workers should anyway check routinely scalers to verify they update correctly and make a logbook entry if anomalies are observed after starting a new run.
- NOTE 14: To solve common SVT issues see https://logbooks.jlab.org/entry/3615766
- NOTE 15:
For RICH recovery procedures, please see Log entry https://logbooks.jlab.org/entry/3562273. This would apply in the cases of 1. DAQ crash: rich4 is not responding or 2. RICH alarms (LV,missing tile, temperature etc). If it does not work or you are uncertain about what to do, contact the RICH expert on call. Please, note that missing tiles typically occur due to lost communication. Keep in mind that the recovery procedure will kill DAQ. If DAQ is running for other purpose, rather than data taking (for which the RICH acceptance would be important) do not initiate the recovery procedure.
- The most critical parameter for RICH is the temperature of the photosensors. If the temperature rises above limits, an interlock will automatically turn the RICH HV and LV. If this happens, notify the expert on call and keep taking data without RICH.
- NOTE 16: Asymmetry on FTCal ADC Scalers: If the beam current is 5 - 10 nA, and the observed asymmetry is out of specs, i.e. > +-2.5%, check (1) that the beam position is according to specs, (2) the response of the rest of CLAS (compare the scalers of FTOF, CTOF, ECAL, etc. from the Scalers GUI to the reference for that current, as posted above). If positions and other detectors do not show any anomalies, keep running. The ADC scalers require at least ~15 nA for a reliable response.
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