Difference between revisions of "Template:ShortTermSchedule-RGE"

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'''Run Coordinator: Kevin Giovanetti''' (757) 575-7540
+
'''Run Coordinator: Sebouh Paul ''' (757) 575-7540  
 +
 
 +
'''Current RP Coordinator: Lamiaa El Fassi'''
  
 
'''PDL: Nathan Baltzell''' (757) 876-1789, Office: x5902  
 
'''PDL: Nathan Baltzell''' (757) 876-1789, Office: x5902  
  
<center>Daily RC Meetings at 13:00 in CH Room 200C, and on ZOOM: [https://jlab-org.zoomgov.com/j/1605705819 URL Link] ('''''Meeting ID''''': 1605705819'')''', ''except on '''Wednesdays''', which is '''on ZOOM ONLY @ 15:30. </center>
+
<center>Daily RC Meetings at 13:00 in CH Room 200C, and on ZOOM: [https://jlab-org.zoomgov.com/j/1605705819 URL Link] ('''''Meeting ID''''': 1605705819'')''', ''except on '''Wednesdays''', which is ''' @ 15:00 in CH Room 200C and via the same ZOOM link. </center>
 +
 
 +
== '''Important Notes''' ==
 +
* In case of medical or fire emergency, call 911 or 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''), grab the shift expert phone and leave the room through the "<font color=red>EXIT</font>" door leading to the parking lot. Do not leave through the hallway! Call the RC once outside so the latter can call MCC to turn the beam OFF for Hall B and 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, the RC, and JLab medical services immediately to arrange replacements.
 +
* <font color=Blue>In case of a problem with the HV Slow Controls, EPICS in general, please call the primary expert on-call, Nathan Baltzell, before reaching out to anyone else.</font>
 +
 
 +
* '''Please put all essential information on the main Hall B logbook HBLOG. Some important alarms have been documented on HBRUN. Use the pulldown menu to choose where an error is reported.'''
 +
 
 +
{| {{TableStyle1}}
 +
 
 +
| valign=top width=50% |
 +
 
 +
== '''Current Run Plan: May 18<sup>th</sup> to May 19<sup>th</sup>''' ==
 +
* Take production data! Don't break anything!
 +
 
 +
* Keep an eye on the backgrounds, such as in the halo counters and the 2C24A and 2H01 BPM positions. Both give confidence that the beam remains centered on the RG-E target.
 +
 
 +
* See the {{#switchtablink:General_Information|General Information}} tab for specific issues with the detector subsystems.
 +
 
 +
* If you need to manipulate the whole target system - cryo-target or solid - please contact the target experts.
  
== Important Notes ==
+
* For information on triggers, please see here: https://logbooks.jlab.org/entry/4267187
* 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''), grab the shift expert phone and leave the room through the "<font color=red>EXIT</font>" door leading to the parking lot. Do not leave through the hallway! Call the RC once outside so the latter will call MCC to turn the beam OFF to Hall B and 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.
 
  
'''Please put all essential information on the main hall B log HBLOG. Some important alarms have been documented on HBRUN. Use the pull down menu to choose where an error is reported.'''
+
* Long-term run plan was also highlighted in this [https://docs.google.com/spreadsheets/d/13CvaWromHWRBfxoPrRsy8AD4omTOl0SQkHT6A3mJbRw/edit#gid=967597323 RG-E Calendar link]
  
 +
=== '''Outbending Configuration Runs''' ===
 +
:<font color=Brown>&bull; Beam Blocker: IN
 +
:&bull; Beam Current: 70 nA
 +
:&bull; Target: LD2+Pb
 +
:&bull; Configuration: <tt>PROD67</tt> (w/o. PIN option)
 +
:&bull; Trigger: <tt>rge_noDC_v1.0_300MeV.trg</tt>
 +
:&bull; 3-hour or 100 M events run, whatever comes first!</font>
  
 +
<!--and is outlined below::# Take outbending data with LD2+C, then LD2+Pb until the beam is taken away on May 19<sup>th</sup> at 7 a.m. for the accelerator beam studies.-->
  
{| {{TableStyle1}}
+
== ''Previous Dual-target Configuration Plans'' ==
 +
<big>''- DC firmware test plan (LD2+Pb):''</big>
  
| valign=top width=50% |
+
1) Take one run each with 1M events with the trigger files and beam current at 70 nA
========= Preparation for Beam after recovery (Wednesday April 10)===========
+
* rge_inb_v1.0_200MeV_dcrb17_1.trg  : DCRB Threshold (30, 45, 45 nA)
In order to reach the requested energy a slight different beam is being tuned and hopefully is available soon.
+
* rge_inb_v1.0_200MeV_dcrb17_4.trg  : DCRB Threshold (30, 60, 45 nA)
 +
* rge_inb_v1.0_200MeV_dcrb17_3.trg  : DCRB Threshold (45, 60, 60 nA)
 +
* rge_inb_v1.0_200MeV_dcrb17_2.trg  : DCRB Threshold (30, 30, 30 nA)
  
All the tracking detectors need to be prepared for beam tuning.
+
2) Take one run with 500k events and beam current at 35nA with trigger file rge_inb_v1.0_200MeV_dcrb17_2.trg
* BMT should be in safe mode
 
* FMT should be in safe mode
 
* SVT should have the HV off
 
* DC  should have the HV off
 
Request 5 nA and check the beam position check that there are no trips of FSD
 
  
If positions look OK and FSD doesn't trip restore the tracking.
+
3) Take one run with 500k events and beam current at 35nA with trigger file rge_inb_v1.0_200MeV_dcrb17_4.trg
If things have returned to nominal values the current can be returned to the settings for carbon 85 nA.
 
It it may be useful to request beam in steps so that one can see that higher currents are not causing problems.
 
  
If the beam is not acceptable Eugene asked to be called to help establishing good beam.
+
:&bull; Before the last run, call DC expert Florian so that he can change the firmware after the last run is finished.
  
=== Production data taking ===
+
'''*** Notes ***'''
* Target: Yes
+
:&bull; In every step, follow DAQ procedure (End run, Cancel, Reset, Configure, Download, Prestart, Go)
* Beam Blocker: OUT
+
:&bull; For every run please log clas12mon plots from the special version at /usr/clas12/offline/clas12mon/dcrb/bin/mon12
* Configuration: <tt>PROD67</tt>
 
  
In case of the need to manipulate the whole target system - cryotarget or solids - please contact the target experts.
+
== ''LD2+Pb runs'' ==
 +
* Trigger: <tt>rge_inb_v1.0_200MeV.trg</tt>
 +
* Beam Current: 70 nA
 +
* Use <tt>PROD67</tt> configuration (this will not PIN data)
 +
* 3-hour runs
  
LD2+C runs  
+
== ''LD2+Sn runs'' ==
 
* Trigger: <tt>rge_inb_v1.0_200MeV.trg</tt>
 
* Trigger: <tt>rge_inb_v1.0_200MeV.trg</tt>
* Beam Current: 85 nA
+
* Beam Current: 65 nA
 
* Use <tt>PROD67</tt> configuration (this will not PIN data)
 
* Use <tt>PROD67</tt> configuration (this will not PIN data)
 
* 3-hour runs
 
* 3-hour runs
 +
== '' LD2+Al runs'' ==
 +
<!--:<font color=Brown>&bull; Target: LD2 + Al </font-->
 +
:&bull; Beam Blocker: IN
 +
:&bull; Configuration: <tt>PROD67</tt> (w/o. PIN option)
 +
:&bull; Trigger: <tt>rge_inb_v1.0_200MeV.trg</tt>
 +
:&bull; Beam Current: 70 nA
 +
:&bull; 3-hour runs
 +
 +
== ''Lumi Scan for LD2+Al on May 15<sup>th</sup>'' ==
 +
:&bull; Beam Blocker: OUT
 +
:&bull; Configuration: <tt>PROD67</tt> (w/o. PIN option)
 +
:&bull; Trigger: <tt>rge_inb_v1.0_200MeV.trg</tt>
 +
:&bull; Take one 5 nA run for 4 hours w/. beam ON
 +
:&bull; Take one 10 nA run for 6 hours w/. beam ON
 +
:&bull; Take one 20 nA run for 3 hours w/. beam ON
 +
:&bull; Take one 45 nA run for 3 hours w/. beam ON
 +
 +
== ''Lumi Scan for LD2+Pb on May 15<sup>th</sup> - 16<sup>th</sup>'' ==
 +
:&bull; Beam Blocker: OUT
 +
:&bull; Configuration: <tt>PROD67</tt> (w/o. PIN option)
 +
:&bull; Trigger: <tt>rge_inb_v1.0_200MeV.trg</tt>
 +
:&bull; Take one 5 nA run for 4 hours w/. beam ON
 +
:&bull; Take one 10 nA run for 3 hours w/. beam ON
 +
:&bull; Take one 20 nA run for 3 hours w/. beam ON
 +
:&bull; Take one 40 nA run for 3 hours w/. beam ON
 +
:&bull; Take one 55 nA run for 3 hours w/. beam ON
 +
 +
== ''Streaming Readout Test'' ==
 +
:&bull; Performed in coordination with Sergey and David Lawrence (''Done from 9 to 11 a.m. on May 16<sup>th</sup>'').
  
For information on triggers, please see here: https://logbooks.jlab.org/entry/4267187
+
== ''Empty-target runs on May 16<sup>th</sup> - 17<sup>th</sup>'' ==
 +
:&bull; Beam Blocker: IN
 +
:&bull; Configuration: <tt>PROD67</tt> (w/o. PIN option)
 +
:&bull; Trigger: <tt>rge_inb_v1.0_200MeV.trg</tt>
 +
:&bull; Take one Empty+Al run @ 70 nA w/. BB for 5 hours (w/. Beam ON)
 +
:&bull; Take one Empty+Wire run @ 200 nA w/. BB for approx. 8 hours (''BB calibration is done by Rafo and Lamiaa/MCC OPS over phone'')
  
Long term run plan [https://wiki.jlab.org/clas12-run/images/7/70/RG-E_New-Run-Plan.pdf]
+
== ''Outbending Configuration Runs'' on May 17<sup>th</sup> - 19<sup>th</sup>'' ===
 +
:&bull; Beam Blocker: IN
 +
:&bull; Beam Current: 70 nA
 +
:&bull; Target: LD2+C
 +
:&bull; Configuration: <tt>PROD67</tt> (w/o. PIN option)
 +
:&bull; Trigger: <tt>rge_noDC_v1.0_300MeV.trg</tt>, or
 +
::&diams; Trigger: <tt>rge_noDC_v1.0_200MeV.trg</tt>, and Beam Current: 60 nA or
 +
::&diams; Trigger: <tt>rge_noDC_v1.0_250MeV.trg</tt>, and Beam Current: 65 nA
 +
:&bull; 3-hour or 100 M events run, whatever comes first!
  
 
| valign=top |
 
| valign=top |
  
== References ==
+
== '''References''' ==
 +
 
 +
=== ''- BPM Positions'' ===
 +
 
 +
:*The most important <font color=red>'''BPMs to monitor are 2C24A and 2H01'''</font>, from the point of view of assuring the beam remains centered on the RG-E target. Other steering/focusing beamline elements can influence the values of the others.
  
=== BPM Positions ===
+
:{| class=wikitable cellpadding="10" cellspacing="0" style="border-left:2px solid gray;border-right:2px solid gray;border-bottom:1px solid gray"
{| class=wikitable cellpadding="10" cellspacing="0" style="border-left:2px solid gray;border-right:2px solid gray;border-bottom:1px solid gray;"
+
!style="background:#ffdead;border-bottom:2px solid gray; border-top:2px solid gray;border-right:2px solid gray" | '''BPM''' || style="border-bottom:2px solid gray; border-top:2px solid gray" | 2C21A || style="border-bottom:2px solid gray; border-top:2px solid gray" | 2C24A || style="border-bottom:2px solid gray; border-top:2px solid gray" | 2H01
 +
|-
 +
| style="background:#ffdead;border-bottom:2px solid gray;border-top:2px solid gray;border-right:2px solid gray" | '''X (mm)''' || -0.4 || -1.7 || -1.0
 +
|-
 +
| style="background:#ffdead;border-bottom:2px solid gray;border-top:2px solid gray;border-right:2px solid gray" | '''Y (mm)'''|| style="border-bottom:2px solid gray"|+0.7 || style="border-bottom:2px solid gray"|+0.5 || style="border-bottom:2px solid gray"|+0.25
 +
|-
 +
|}
 +
<!--:{| class=wikitable cellpadding="10" cellspacing="0" style="border-left:2px solid gray;border-right:2px solid gray;border-bottom:1px solid gray;"
 
!style="background:#ffdead;border-bottom:2px solid gray; border-top:2px solid gray" | '''BPM''' ||style="background:#ffdead;border-bottom:2px solid gray;border-top:2px solid gray" | '''X (mm)''' ||style="background:#ffdead;border-bottom:2px solid gray;border-top:2px solid gray" | '''Y (mm)'''  
 
!style="background:#ffdead;border-bottom:2px solid gray; border-top:2px solid gray" | '''BPM''' ||style="background:#ffdead;border-bottom:2px solid gray;border-top:2px solid gray" | '''X (mm)''' ||style="background:#ffdead;border-bottom:2px solid gray;border-top:2px solid gray" | '''Y (mm)'''  
 
|-
 
|-
Line 63: Line 143:
 
|-
 
|-
 
|style="border-bottom:2px solid gray;" | 2H01 ||style="border-bottom:2px solid gray;"| -1.0 ||style="border-bottom:2px solid gray;"| +0.25
 
|style="border-bottom:2px solid gray;" | 2H01 ||style="border-bottom:2px solid gray;"| -1.0 ||style="border-bottom:2px solid gray;"| +0.25
|}
+
|}-->
 
+
=== ''- Harp Scans'' ===
=== Harp Scans ===
 
 
* [https://logbooks.jlab.org/entry/4268480 2C21A]
 
* [https://logbooks.jlab.org/entry/4268480 2C21A]
 
* [https://logbooks.jlab.org/entry/4268530 2C24A/Tagger]
 
* [https://logbooks.jlab.org/entry/4268530 2C24A/Tagger]
 
* [https://logbooks.jlab.org/entry/4268606 2H01]
 
* [https://logbooks.jlab.org/entry/4268606 2H01]
  
=== FSD Thresholds ===
+
=== ''- FSD Thresholds'' ===
'''Do NOT change FSD settings without approval from RC or beamline expert!'''
+
:* '''Do NOT change FSD settings without approval from RC or beamline expert!'''
* Upstream: 2 kHz
+
::&bull; Upstream: 2 kHz
* Midstream: 2 kHz
+
::&bull; Midstream: 3 kHz
* Downstream: 100 kHz
+
::&bull; Downstream: 150 kHz
* BOM: 50 kHz
+
::&bull; BOM: 50 kHz
* 5 ms dwell time
+
::&bull; 5 ms dwell time
  
=== Charge Asymmetry ===
+
=== ''- Charge Asymmetry'' ===
 
* HWP IN: [https://logbooks.jlab.org/entry/4194811 4194811] and [https://logbooks.jlab.org/entry/4195453 4195453]
 
* HWP IN: [https://logbooks.jlab.org/entry/4194811 4194811] and [https://logbooks.jlab.org/entry/4195453 4195453]
 
* HWP OUT: [https://logbooks.jlab.org/entry/4195738 4195738] and [https://logbooks.jlab.org/entry/4195733 4195733]
 
* HWP OUT: [https://logbooks.jlab.org/entry/4195738 4195738] and [https://logbooks.jlab.org/entry/4195733 4195733]
 +
 +
=== ''- Upstream Halo counters'' ===
 +
* If the reading on the upstream halo counters exceeds 10, please contact MCC.
  
 
|}
 
|}
Line 88: Line 170:
 
| valign=top width=50% |
 
| valign=top width=50% |
  
== General Reminders ==
+
== '''General Reminders''' ==
  
 
* The main lights in the Hall and the Forward Carriage lights must be kept off during data taking.
 
* The main lights in the Hall and the Forward Carriage lights must be kept off during data taking.
:- Refer to these reference photos, [https://logbooks.jlab.org/entry/3825712 ON] and [https://logbooks.jlab.org/entry/3825731 OFF]
+
:&bull; Refer to these reference photos, [https://logbooks.jlab.org/entry/3825712 ON] and [https://logbooks.jlab.org/entry/3825731 OFF]
:- The main, dome lights can be [https://logbooks.jlab.org/entry/4204460 turned off without entering the Hall].
+
:&bull; The main, dome lights can be [https://logbooks.jlab.org/entry/4204460 turned off without entering the Hall].
  
 
* Beamline
 
* Beamline
:- Do not run over 30 minutes above 90 nA with a 5-pass beam without the beam blocker IN.
+
:&bull; Do not run over 30 minutes above 90 nA ('''''50 nA for now while studying FCup behavior''''') with a 5-pass beam without the beam blocker IN.
:- If there is any concern about beam stability, ask MCC if orbit locks are on (they should be).
+
:&bull; 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.
+
:&bull; Document any beam condition change and send scaler GUIs to HBLOG.
:- If HWP is changed, start a new run.
+
:&bull; If HWP is changed, start a new run.
  
 
* During beam tuning and M&oslash;ller runs
 
* During beam tuning and M&oslash;ller runs
:- DC:  HV OFF
+
:&bull; DC:  HV OFF
:- SVT: LV ON, HV OFF
+
:&bull; SVT: LV ON, HV OFF
:- MVT: LV ON, HV ON in SAFE Mode
+
:&bull; MVT: LV ON, HV ON in SAFE Mode
:- All CLAS12 detectors should be off but tracking detectors (above) most critical.
+
:&bull; All CLAS12 detectors should be OFF; aforementioned tracking detectors are the most critical.
  
 
* To access the Hall
 
* 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.
+
:&bull; If you need to enter Hall B, alert Denny Insley (757-897-9060, cell/text: 757-810-9576) and the Run Coordinator.
:- Check in with the shift personnel before entering the hall.
+
:&bull; Check in with the shift personnel before entering the hall.
 +
 
  
 
| valign=top |
 
| valign=top |
  
== DAQ Operation ==  
+
== '''DAQ Operation''' ==  
 
* Standard end and start of a run
 
* Standard end and start of a run
 
*# End run
 
*# End run
Line 121: Line 204:
  
 
* Restart DAQ from scratch
 
* Restart DAQ from scratch
** e.g., when changing configuration or trigger files, when the run did not end correctly, or after ROCs are rebooted
+
:&bull; E.g., when changing configuration or trigger files, when the run did not end correctly, or after ROCs are rebooted
*# Cancel
+
:# Cancel
*# Reset
+
:# Reset
*# Configure
+
:# Configure
*# Download
+
:# Download
*# Prestart
+
:# Prestart
*# Go
+
:# Go
 +
 
 +
* DAQ instructions
 +
:&bull; Please make a log entry (logbook RICH, notify vpk@jlab.org) with RICH temp and scalers screenshots when you have RICH problems.
 +
:&bull; You do not need to stop the run each time you get 1-2 dead tiles if DAQ is still working. Continue data taking. When you start a new run, the dead tiles will recover without your intervention during DAQ Prestart with a high probability. If you still have problems, make a full RICH recovery and call Valery #5647.
  
 
|}
 
|}

Latest revision as of 19:44, 18 May 2024

Run Coordinator: Sebouh Paul (757) 575-7540

Current RP Coordinator: Lamiaa El Fassi

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

Daily RC Meetings at 13:00 in CH Room 200C, and on ZOOM: URL Link (Meeting ID: 1605705819), except on Wednesdays, which is @ 15:00 in CH Room 200C and via the same ZOOM link.

Important Notes

  • In case of medical or fire emergency, call 911 or 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), grab the shift expert phone and leave the room through the "EXIT" door leading to the parking lot. Do not leave through the hallway! Call the RC once outside so the latter can call MCC to turn the beam OFF for Hall B and 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, the RC, and JLab medical services immediately to arrange replacements.
  • In case of a problem with the HV Slow Controls, EPICS in general, please call the primary expert on-call, Nathan Baltzell, before reaching out to anyone else.
  • Please put all essential information on the main Hall B logbook HBLOG. Some important alarms have been documented on HBRUN. Use the pulldown menu to choose where an error is reported.

Current Run Plan: May 18th to May 19th

  • Take production data! Don't break anything!
  • Keep an eye on the backgrounds, such as in the halo counters and the 2C24A and 2H01 BPM positions. Both give confidence that the beam remains centered on the RG-E target.
  • If you need to manipulate the whole target system - cryo-target or solid - please contact the target experts.

Outbending Configuration Runs

• Beam Blocker: IN
• Beam Current: 70 nA
• Target: LD2+Pb
• Configuration: PROD67 (w/o. PIN option)
• Trigger: rge_noDC_v1.0_300MeV.trg
• 3-hour or 100 M events run, whatever comes first!


Previous Dual-target Configuration Plans

- DC firmware test plan (LD2+Pb):

1) Take one run each with 1M events with the trigger files and beam current at 70 nA

  • rge_inb_v1.0_200MeV_dcrb17_1.trg : DCRB Threshold (30, 45, 45 nA)
  • rge_inb_v1.0_200MeV_dcrb17_4.trg : DCRB Threshold (30, 60, 45 nA)
  • rge_inb_v1.0_200MeV_dcrb17_3.trg : DCRB Threshold (45, 60, 60 nA)
  • rge_inb_v1.0_200MeV_dcrb17_2.trg : DCRB Threshold (30, 30, 30 nA)

2) Take one run with 500k events and beam current at 35nA with trigger file rge_inb_v1.0_200MeV_dcrb17_2.trg

3) Take one run with 500k events and beam current at 35nA with trigger file rge_inb_v1.0_200MeV_dcrb17_4.trg

• Before the last run, call DC expert Florian so that he can change the firmware after the last run is finished.

*** Notes ***

• In every step, follow DAQ procedure (End run, Cancel, Reset, Configure, Download, Prestart, Go)
• For every run please log clas12mon plots from the special version at /usr/clas12/offline/clas12mon/dcrb/bin/mon12

LD2+Pb runs

  • Trigger: rge_inb_v1.0_200MeV.trg
  • Beam Current: 70 nA
  • Use PROD67 configuration (this will not PIN data)
  • 3-hour runs

LD2+Sn runs

  • Trigger: rge_inb_v1.0_200MeV.trg
  • Beam Current: 65 nA
  • Use PROD67 configuration (this will not PIN data)
  • 3-hour runs

LD2+Al runs

• Beam Blocker: IN
• Configuration: PROD67 (w/o. PIN option)
• Trigger: rge_inb_v1.0_200MeV.trg
• Beam Current: 70 nA
• 3-hour runs

Lumi Scan for LD2+Al on May 15th

• Beam Blocker: OUT
• Configuration: PROD67 (w/o. PIN option)
• Trigger: rge_inb_v1.0_200MeV.trg
• Take one 5 nA run for 4 hours w/. beam ON
• Take one 10 nA run for 6 hours w/. beam ON
• Take one 20 nA run for 3 hours w/. beam ON
• Take one 45 nA run for 3 hours w/. beam ON

Lumi Scan for LD2+Pb on May 15th - 16th

• Beam Blocker: OUT
• Configuration: PROD67 (w/o. PIN option)
• Trigger: rge_inb_v1.0_200MeV.trg
• Take one 5 nA run for 4 hours w/. beam ON
• Take one 10 nA run for 3 hours w/. beam ON
• Take one 20 nA run for 3 hours w/. beam ON
• Take one 40 nA run for 3 hours w/. beam ON
• Take one 55 nA run for 3 hours w/. beam ON

Streaming Readout Test

• Performed in coordination with Sergey and David Lawrence (Done from 9 to 11 a.m. on May 16th).

Empty-target runs on May 16th - 17th

• Beam Blocker: IN
• Configuration: PROD67 (w/o. PIN option)
• Trigger: rge_inb_v1.0_200MeV.trg
• Take one Empty+Al run @ 70 nA w/. BB for 5 hours (w/. Beam ON)
• Take one Empty+Wire run @ 200 nA w/. BB for approx. 8 hours (BB calibration is done by Rafo and Lamiaa/MCC OPS over phone)

Outbending Configuration Runs on May 17th - 19th =

• Beam Blocker: IN
• Beam Current: 70 nA
• Target: LD2+C
• Configuration: PROD67 (w/o. PIN option)
• Trigger: rge_noDC_v1.0_300MeV.trg, or
♦ Trigger: rge_noDC_v1.0_200MeV.trg, and Beam Current: 60 nA or
♦ Trigger: rge_noDC_v1.0_250MeV.trg, and Beam Current: 65 nA
• 3-hour or 100 M events run, whatever comes first!

References

- BPM Positions

  • The most important BPMs to monitor are 2C24A and 2H01, from the point of view of assuring the beam remains centered on the RG-E target. Other steering/focusing beamline elements can influence the values of the others.
BPM 2C21A 2C24A 2H01
X (mm) -0.4 -1.7 -1.0
Y (mm) +0.7 +0.5 +0.25

- Harp Scans

- FSD Thresholds

  • Do NOT change FSD settings without approval from RC or beamline expert!
• Upstream: 2 kHz
• Midstream: 3 kHz
• Downstream: 150 kHz
• BOM: 50 kHz
• 5 ms dwell time

- Charge Asymmetry

- Upstream Halo counters

  • If the reading on the upstream halo counters exceeds 10, please contact MCC.

General Reminders

  • The main lights in the Hall and the Forward Carriage lights must be kept off during data taking.
• Refer to these reference photos, ON and OFF
• The main, dome lights can be turned off without entering the Hall.
  • Beamline
• Do not run over 30 minutes above 90 nA (50 nA for now while studying FCup behavior) with a 5-pass beam without the beam blocker IN.
• 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.
  • During beam tuning and Møller runs
• DC: HV OFF
• SVT: LV ON, HV OFF
• MVT: LV ON, HV ON in SAFE Mode
• All CLAS12 detectors should be OFF; aforementioned tracking detectors are the most critical.
  • 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.
• Check in with the shift personnel before entering the hall.


DAQ Operation

  • Standard end and start of a run
    1. End run
    2. Abort
    3. Download
    4. Prestart
    5. "Go"
  • Restart DAQ from scratch
• E.g., when changing configuration or trigger files, when the run did not end correctly, or after ROCs are rebooted
  1. Cancel
  2. Reset
  3. Configure
  4. Download
  5. Prestart
  6. Go
  • DAQ instructions
• Please make a log entry (logbook RICH, notify vpk@jlab.org) with RICH temp and scalers screenshots when you have RICH problems.
• You do not need to stop the run each time you get 1-2 dead tiles if DAQ is still working. Continue data taking. When you start a new run, the dead tiles will recover without your intervention during DAQ Prestart with a high probability. If you still have problems, make a full RICH recovery and call Valery #5647.