Difference between revisions of "Short Term Run Plan"

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Do reload this page, it gets updated frequently.
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== Current Experiment ==
 
== Current Experiment ==
 +
Rare Eta Decay & GlueX II (with DIRC)
 +
* Experiment number: E12-12-002 (use in BTA shift information)
 +
* [https://misportal.jlab.org/mis/physics/experiments/viewProposal.cfm?paperId=834 Proposal]
 +
* Spokesperson: C. A. Meyer
  
−
PrimEx-eta: A Precision Measurement of the η Radiative Decay Width via the Primakoff Effect
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== Notes ==
−
* Experiment number: E12-10-011 (use in BTA shift information)
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* All GlueX detectors (including DIRC)
−
* Proposal: [https://www.jlab.org/exp_prog/proposals/10/PR12-10-011.pdf PAC link]
+
  
 
== Run conditions ==
 
== Run conditions ==
−
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[https://halldweb.jlab.org/online/whiteboard/ Hall D counting room whiteboard]
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We are running at 200nA with full LHe4 target and the solenoid and drift chambers on.  
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* DAQ configuration name: PHYSICS_PRIMEX
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* Radiator: JD70-103 50 um diamond (4 orientations: 0, 90, 45, -45)
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* Trigger file: CCAL_FCAL_PS_m9.conf
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* Collimator: 5.0 mm
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* Keep the runs to 2h or less.
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* TPOL converter: Be 75 um
 +
* Runs are no more than 2 hours (~400M triggers)- see whiteboard for the production cycle
 +
* Target: Liquid Hydrogen
  
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Fr, Oct 29, 2021 at ca 17:00, we might continue empty target runs (to be confirmed)
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DAQ configuration
 +
* Setup: FCAL_BCAL_PS_m9
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* Production: PHYSICS_DIRC
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* (Raw mode: PHYSICS_DIRC_RAW)
  
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== Shift leader  ==
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== Run plan ==
 +
See the daily plan in [https://halldweb.jlab.org/wiki/index.php/Run_Coordination_Meetings:Spring2023 Run Coordination Meetings:Spring2023] and also the [https://halldweb.jlab.org/online/whiteboard/ counting house whiteboard]
  
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Guidelines are at [[Shift_Guidelines_for_Shift_Leader]]
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== Shift duties  ==
  
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* Remember to include a separate '''list of the runs''' taken during the shift at the end of the summary (for example, see https://logbooks.jlab.org/entry/3926883)
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[[Shift_Guidelines_for_Shift_Leader|Shift Leader]]
  
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* Remember to log the '''strip charts''' of beam current and position, see [[Slow_Controls_Shift#MYA_Archiver]]
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[[Guidelines_for_Remote_Worker_Shift|Shift Worker]]
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** on a gluon machine type myaPlot
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** right-click on the blank space of the myaPlot screen and select "Clone in new LivePlot"
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** right-click on the blank space of the myaPlot screen and select "Load a Configuration"
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** the configuration "beam_conditions" provides the beam current and position information
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* The '''BTA''' guidelines are at [[BTA_guidelines]]. <br> After loading the EPICS values, you may change the values, eg round them up or down.
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== Special instructions ==
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** '''BANU values''' >= 5 minutes must be reflected in the PCC value (else the aftermath doesnt work out for RC)
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** '''BANU values''' < 5 minutes may be set to 0
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== Shift worker ==  
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=== Hall Delta ===
  
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Guidelines are at [[Guidelines_for_Remote_Worker_Shift]]
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It's good practice to refer to our hall as Delta when talking to MCC, to make sure that there is no acoustic confusion between us and Hall B.
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* Duties:
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*# shift checklist (per shift) [[Shift_Checklist]]
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*# data monitoring plots (per run) [[Online_Monitoring_Shift]]
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*# screen shot of CSS GlueX Overview (per run) [[Slow_Controls_Shift#EPICS_Control_Screens]]
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== After beam restoration ==
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=== Screenshot tool ===
  
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* check the '''radiation levels''' without a radiator and then with the radiator listed on the whiteboard (bottom RHS corner of the RH board) - there are columns of values expected with and without the radiator
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"Alt L" brings up the [[Logbook_Screenshot_Tool | screenshot tool for making E-log entries]]
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* '''retract the radiator''', make sure that the '''collimator is in blocking position'''
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* ask MCC to do their harp scan
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=== FCAL Base lockup ===
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* follow the instructions in [[Beam_Line_Detectors_Shift#Radiator_Harp_Scan]] to do our '''harp scans''' 
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* use the '''harp scan extrapolation''' tool and post screenshots of the plots into the logbook (eg https://logbooks.jlab.org/entry/3929556).
+
  
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== Special instructions ==
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If FCAL HV bases lose communication and stop providing high voltage, refer to https://halldweb.jlab.org/hdops/wiki/index.php/Forward_Calorimeter_Shift#FCAL_Base_lockup
  
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=== timing problems ===
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=== CDC Weather alarm ===
  
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If there are any, please add sdobbs@jlab.org to the notifications in the logbook entry.
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aka Alarm on HD:coda:cdc:p_diff.
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See https://logbooks.jlab.org/entry/4117725
 +
* Stop run - Acknowledge alarm and document it - Start new run
 +
We are temporarily using Hall B sensor for our alarm, see [https://logbooks.jlab.org/entry/4117725 Alternative Barometric Pressure Measurement]
 +
<!--The alarm has been disabled, see logbook entries [https://logbooks.jlab.org/entry/4114344 4114344], [https://logbooks.jlab.org/entry/4114307 4114307]-->
  
−
Example double timing peaks: https://logbooks.jlab.org/entry/3933110
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=== DIRC Communication Error at Run Start ===
  
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Shoulders on timing peaks might be features and not problems: https://logbooks.jlab.org/entry/3933867
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When starting a new run, one of the DIRC FPGA boards may lose communication resulting in a Magenta communication error in the Alarm Tree, refer to [https://halldweb.jlab.org/hdops/wiki/index.php/DIRC_Shift#DIRC_Communication_Error_at_run_start this page] for a fix.
  
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=== AI for CDC HV ===
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=== After beam restoration ===
  
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Set the CDC HV before the start of each run using the value suggested by the AI. 
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* See [[Beam_Line_Detectors_Shift#Collimator_and_Radiators]] on how to move radiators and collimator
  
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* There are instructions here https://wiki.jlab.org/epsciwiki/index.php/PrimEx_instructions   
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* check the '''radiation levels''' without radiator and then with the radiator
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* The AI uses measurements from epics averaged over the last minute, so the AI should be used just before starting a run, when the beam current is at its target value and has been steady for the past minute. 
+
** see the whiteboard (bottom RHS corner of the RH board) - there are columns of values expected without and with the radiator
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* If for any reason this proves to be problematic, please revert to the nominal HV, 2125V, and contact Naomi.
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* '''retract the radiator'''
 +
* '''collimator in blocking position'''
 +
* ask MCC to do their harp scan
 +
* our '''harp scans''': follow the instructions in [[Beam_Line_Detectors_Shift#Radiator_Harp_Scan]]
  
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=== PS and/or PSC scalers freezing ===
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=== rootspy  ===  
  
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Keep an eye out for the PS and/or PSC scalers freezing.  If it happens, then step 2+3 of the instructions 'Run PS Scalers' at [[Pair_Spectrometer_Shift]]   can be followed to reset them, it has to be done on gluon100.
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If you have to restart rootspy, [[Online_Monitoring_Shift#Routine_Operation]], and it crashes, you might have to restart the monitoring process, find help at [[Online_Monitoring_Shift#Starting_and_stopping_the_Monitoring_System]].
  
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=== Hall Delta ===
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=== DAQ issues ===
  
−
It's good practice to refer to our hall as Delta when talking to MCC, to make sure that there is no acoustic confusion between us and Hall B.
+
Call the expert. In case they suggest that you restart the DAQ, find information at [[Data_Acquisition_Shift]].
 +
 
 +
In case the DAQ issue is '''low lifetime''':
 +
* In case there is time (eg beam down), call the expert so that he can track down the problem.
 +
* Restart the DAQ, if that does not help, call the expert.
 +
 
 +
=== BTA sheet ===
 +
 
 +
* The '''BTA''' guidelines are at [[BTA_guidelines]]. <br> After loading the EPICS values, you may change the values, eg round them up or down.
 +
** '''BANU values''' should be reflected in the PCC (or UED) value (else the aftermath doesnt work out for RC), put a comment for > 5minutes.
 +
** '''UED:''' unplanned experiment down (hardware failure).
 +
 
 +
=== Bottom Alcohol Bubbler ===
 +
 
 +
*We are not using the bottom alcohol bubbler. It is expected that its level is "ADD" and that it is not bubbling [https://logbooks.jlab.org/entry/4108449 log entry]

Latest revision as of 04:49, 13 February 2023

Do reload this page, it gets updated frequently.

Current Experiment

Rare Eta Decay & GlueX II (with DIRC)

  • Experiment number: E12-12-002 (use in BTA shift information)
  • Proposal
  • Spokesperson: C. A. Meyer

Notes

  • All GlueX detectors (including DIRC)

Run conditions

Hall D counting room whiteboard

  • Radiator: JD70-103 50 um diamond (4 orientations: 0, 90, 45, -45)
  • Collimator: 5.0 mm
  • TPOL converter: Be 75 um
  • Runs are no more than 2 hours (~400M triggers)- see whiteboard for the production cycle
  • Target: Liquid Hydrogen

DAQ configuration

  • Setup: FCAL_BCAL_PS_m9
  • Production: PHYSICS_DIRC
  • (Raw mode: PHYSICS_DIRC_RAW)

Run plan

See the daily plan in Run Coordination Meetings:Spring2023 and also the counting house whiteboard

Shift duties

Shift Leader

Shift Worker

Special instructions

Hall Delta

It's good practice to refer to our hall as Delta when talking to MCC, to make sure that there is no acoustic confusion between us and Hall B.

Screenshot tool

"Alt L" brings up the screenshot tool for making E-log entries

FCAL Base lockup

If FCAL HV bases lose communication and stop providing high voltage, refer to https://halldweb.jlab.org/hdops/wiki/index.php/Forward_Calorimeter_Shift#FCAL_Base_lockup

CDC Weather alarm

aka Alarm on HD:coda:cdc:p_diff. See https://logbooks.jlab.org/entry/4117725

  • Stop run - Acknowledge alarm and document it - Start new run

We are temporarily using Hall B sensor for our alarm, see Alternative Barometric Pressure Measurement

DIRC Communication Error at Run Start

When starting a new run, one of the DIRC FPGA boards may lose communication resulting in a Magenta communication error in the Alarm Tree, refer to this page for a fix.

After beam restoration

  • check the radiation levels without radiator and then with the radiator
    • see the whiteboard (bottom RHS corner of the RH board) - there are columns of values expected without and with the radiator
  • retract the radiator
  • collimator in blocking position
  • ask MCC to do their harp scan
  • our harp scans: follow the instructions in Beam_Line_Detectors_Shift#Radiator_Harp_Scan

rootspy

If you have to restart rootspy, Online_Monitoring_Shift#Routine_Operation, and it crashes, you might have to restart the monitoring process, find help at Online_Monitoring_Shift#Starting_and_stopping_the_Monitoring_System.

DAQ issues

Call the expert. In case they suggest that you restart the DAQ, find information at Data_Acquisition_Shift.

In case the DAQ issue is low lifetime:

  • In case there is time (eg beam down), call the expert so that he can track down the problem.
  • Restart the DAQ, if that does not help, call the expert.

BTA sheet

  • The BTA guidelines are at BTA_guidelines.
    After loading the EPICS values, you may change the values, eg round them up or down.
    • BANU values should be reflected in the PCC (or UED) value (else the aftermath doesnt work out for RC), put a comment for > 5minutes.
    • UED: unplanned experiment down (hardware failure).

Bottom Alcohol Bubbler

  • We are not using the bottom alcohol bubbler. It is expected that its level is "ADD" and that it is not bubbling log entry
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