Difference between revisions of "Run Coordination Meetings:Spring2025"

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(→‎Runplan)
(→‎Runplan)
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== Runplan ==
 
== Runplan ==
−
#*Cool down target (6h process) once we know that beam is imminent. <b><em><font color="green"> V  </font></em></b>
+
<!--#Cool down target (6h process) once we know that beam is imminent.  
−
#*Do it preferably when the target group is available for support, in case something goes wrong.<b><em><font color="green"> V  </font></em></b>
+
#*Do it preferably when the target group is available for support, in case something goes wrong.
−
#*[https://halldweb.jlab.org/hdops/wiki/index.php/Cryogenic_Target_Shift#Routine_Operation To cool down, use "empty" button, so that the target cell remains empty and there is no need to man the counting room.<b><em><font color="green"> V  </font></em></b>
+
#*[https://halldweb.jlab.org/hdops/wiki/index.php/Cryogenic_Target_Shift#Routine_Operation To cool down, use "empty" button, so that the target cell remains empty and there is no need to man the counting room.
 
#Make sure all radiators (from goni and amorphous ladder) are retracted. ACol in blocking position. Profiler retracted. Check that magnets are at their nominal fields.
 
#Make sure all radiators (from goni and amorphous ladder) are retracted. ACol in blocking position. Profiler retracted. Check that magnets are at their nominal fields.
 
#initial beam and beam line configuration that does not need to be very good but acceptable rad levels in the tagger hall and reasonable photon flux onto the LH target.
 
#initial beam and beam line configuration that does not need to be very good but acceptable rad levels in the tagger hall and reasonable photon flux onto the LH target.
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##****RAD508_P1 <span style="color:#ff00ff">< 0.1 mrad/hr</span> (collimator cave, gammas).  
 
##****RAD508_P1 <span style="color:#ff00ff">< 0.1 mrad/hr</span> (collimator cave, gammas).  
 
##****RAD508_P2 <span style="color:#ff00ff">~ 0. mrad/hr</span> (Hall. Neutrons).  
 
##****RAD508_P2 <span style="color:#ff00ff">~ 0. mrad/hr</span> (Hall. Neutrons).  
−
##*Establish good photon beam  
+
###*Establish good photon beam  
−
##** Make sure tagger quadrupole is on and at -4.2 A. (It can be turned on only once the Hall is in power/beam permit.)
+
###**New beam profiler from Regina <b><font color="red">needs commissioning. When is a good time?</font></b> (Hovanes).
−
##**Insert 2*10<sup>-5</sup> RL radiator. <b><font color="red">Call MCC and ask to mask the FSD and turn off beam each time a radiator is moved</font></b>
+
###** Make sure tagger quadrupole is on and at -4.2 A. (It can be turned on only once the Hall is in power/beam permit.)
 +
###**Insert 2*10<sup>-5</sup> RL radiator. <b><font color="red">Call MCC and ask to mask the FSD and turn off beam each time a radiator is moved</font></b>
 
###*** Typical levels are (for 2×10<sup>-5</sup> radiator, electron beam current 50 nA)
 
###*** Typical levels are (for 2×10<sup>-5</sup> radiator, electron beam current 50 nA)
 
###****RAD102_P1= <span style="color:#ff00ff">35  mrad/hr</span> (tagger area, gammas, between tagger and dump)
 
###****RAD102_P1= <span style="color:#ff00ff">35  mrad/hr</span> (tagger area, gammas, between tagger and dump)
 
###****RAD102_P2= <span style="color:#ff00ff">~ 50  mrad/hr</span> (tagger area, gammas, on the ground below the goniometer)  
 
###****RAD102_P2= <span style="color:#ff00ff">~ 50  mrad/hr</span> (tagger area, gammas, on the ground below the goniometer)  
 
###****RAD102_P3= <span style="color:#ff00ff"> ~2 mrem/hr</span> (tagger area, neutrons, near electronics racks)
 
###****RAD102_P3= <span style="color:#ff00ff"> ~2 mrem/hr</span> (tagger area, neutrons, near electronics racks)
−
##****RAD508_P1= <span style="color:#ff00ff">~10 mrad/hr</span> (collimator cave, gammas).
+
###****RAD508_P1= <span style="color:#ff00ff">~10 mrad/hr</span> (collimator cave, gammas).
 
##****RAD508_P2 <span style="color:#ff00ff">< ~ 0. mrad/hr</span> (Hall. Neutrons).  
 
##****RAD508_P2 <span style="color:#ff00ff">< ~ 0. mrad/hr</span> (Hall. Neutrons).  
 +
##*Verify beam position and envelope (Hovanes).
 +
##**Ask MCC to set beam position on 5C11b to x=-0.5 mm and y=+1.0 mm.
 +
##**Ask MCC for 5C11 and 5C11B HARP. Then do our radiator HARP scan, [https://halldweb.jlab.org/hdops/wiki/index.php/Beam_Line_Detectors_Shift#Radiator_Harp_Scan see instruction].If it looks good, proceed to next step. Otherwise, inform MCC.
 +
##**Insert profiler (no need for masking FSD when an object is inserted in the photon line), run with 1×10<sup>-4</sup> radiator and 50 nA. Beam on the profiler should be at x=0.0±0.5cm; y=0.0±0.5cm. If not, inform MCC. Keep monitoring this position; produce a strip chart and log it.
 +
##*Radiation level study (1h): if you feel up to the task, strip chart the five radiation monitors (see above) and log them.
 +
##**Run 5 min without radiator (Call MCC and ask to mask the FSD each time the radiator is moved). Beam current: 50nA. Repeat at 100 nA and 200 nA. There is no need to run the DAQ or stop the beam between each steps: the data are recorded by EPICS. However, the beam need to be off when moving to a different radiator for the next steps. 
 +
##**Run 5 min with the 10<sup>-4</sup> radiator (Call MCC). Beam current: 50nA. Repeat at 100 nA and 200 nA
 +
##**Run 3 min with the 3*10<sup>-4</sup> radiator (Call MCC). Beam current: 50nA. Repeat at 100 nA and 200 nA
 +
##* Inform Richard Jones that we are getting ready to use the Active Collimator, and ask him if he needs to check the Active Collimator with the beam. <font color="red"> ask richard whether profiler in or out </font>
 +
##* Photon flux optimization and Active Collimator calibration. (1h).  Call Hovanes. <font color="red"> will postpone to duirng day time </font> (Requires confirmation from Richard about using the Active Collimator, see step above). <font color="red"> the following steps will be done by Hovanes; solenoid should be on to protect FDC & CDC b/c collimator will be moved to 5 mm hole </font>
 +
##**re-Insert the 10<sup>-4</sup> radiator (Call MCC). Use about 100 nA beam current. This will provide the Act. Col. nominal positions for its high gain values.
 +
##**Determine maximum photon beam transmission by doing 2D scans using the collimator x/y motions (Hovanes. 1h)
 +
##** Repeat procedure with 2*10<sup>-5</sup> radiator (Call MCC) and 50 nA beam current. This will provide the Act. Col. nominal positions for its low gain values.
 +
##**Record on the white board what is the beam position on 5C11b and  Active Collimator for optimal photon transmission, both for low and high Act. Col. gain.
 +
##**Until Hovanes determines to optimal 5C11b and Active Collimator position, keep profiler in and beam locked (MCC's duty) on the nominal 5C11b and x=0,y=0 profiler position. Once Active Collimator nominal beam position is known, retract profiler and lock the beam (MCC) on the active collimator.
 +
#Detector and beamline checkout.
 +
#*microscope alignment with motor. During this, beam needs to be relatively well centered on collimator (R. Jones/(<font color="red">Hovanes is needed for this<font color="red">) 
 +
#*Any time before starting production (beam quality is not important, but see previous step above): microscope HV scan (2h, R. Jones) 
 +
#*PS and TAGH HV scan.  (Alex. Somov. 1h).
 +
#General detector calibration + HV scans <font color="red">(Sean Dobbs?)<font color="red"> 6h. Use 4.5×10<sup>-4</sup> Al. radiator (on goni). This procedure will go for the first time to nominal current 300 nA.
 +
 
##on Al radiator with beam (current?) have some trigger that works for the following
 
##on Al radiator with beam (current?) have some trigger that works for the following
 
##FCAL commissioning (Sasha)
 
##FCAL commissioning (Sasha)
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#*FCal In parallel with ECal. <font color="red"> Needs a commissioning plan.</font>
 
#*FCal In parallel with ECal. <font color="red"> Needs a commissioning plan.</font>
  
−
#After calorimeter is "commissioned" redo the trigger setup (Sasha)
+
#After calorimeter is "commissioned", redo the trigger setup (Sasha)
−
#Diamond radiator calibration: 2 shifts? (Hovanes)  
+
 
−
#Photon flux optimization: 1 shift? (Hovanes)  
+
#Diamond radiator calibration (unless already done opportunistically during ECal/FCal commissioning): 2 shifts? (Hovanes)  
 +
#Diamond <font color="blue"> JD70-107 </font> alignment check (2 directions already aligned for CPP). (Hovanes. 8h). 
 +
#Inform MCC that they can run their procedure to set the Ion Chambers trip threshold on diamond <font color="blue"> JD70-107 </font>.
 +
 
 
#TAC run-1 1.5 shifts (Sasha), requires scheduling  
 
#TAC run-1 1.5 shifts (Sasha), requires scheduling  
  
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 +
icicicicici
  
−
#*<s>Verify beam position and envelope (Hovanes).</s>
+
#GlueX-II production  
−
#**Ask MCC to set beam position on 5C11b to x=-0.5 mm and y=+1.0 mm.
+
#*Standard configuration: JD70-107 diamond, 300 nA, 5 mm hole, TPol on 75 μm TPol convertor. 2h runs <b>and no more, as it may be hard to correct for calibration drifts</b>. Cycle over 9 sets of runs: 2 runs 0<sup>o</sup>, then 2 runs 90<sup>o</sup>, then 2 runs 45<sup>o</sup>, then 2 runs 135<sup>o</sup>, then 1 amorphous (goniometer) run.  
−
#**<s>Ask MCC for 5C11 and 5C11B HARP. Then do our radiator HARP scan, </s>[https://halldweb.jlab.org/hdops/wiki/index.php/Beam_Line_Detectors_Shift#Radiator_Harp_Scan see instruction].<s> If it looks good, proceed to next step. Otherwise, inform MCC.</s><font color="green"> looked good</font>
+
−
#**Insert profiler (no need for masking FSD when an object is inserted in the photon line), run with 1×10<sup>-4</sup> radiator and 50 nA. Beam on the profiler should be at x=0.0±0.5cm; y=0.0±0.5cm. If not, inform MCC. Keep monitoring this position; produce a strip chart and log it.
+
−
#*Radiation level study (1h):<b><font color="green">V</font></b> <br /> if you feel up to the task, strip chart the five radiation monitors (see above) and log them.
+
−
#**Run 5 min without radiator (Call MCC and ask to mask the FSD each time the radiator is moved). Beam current: 50nA. Repeat at 100 nA and 200 nA. There is no need to run the DAQ or stop the beam between each steps: the data are recorded by EPICS. However, the beam need to be off when moving to a different radiator for the next steps. 
+
−
#**Run 5 min with the 10<sup>-4</sup> radiator (Call MCC). Beam current: 50nA. Repeat at 100 nA and 200 nA
+
−
#**Run 3 min with the 3*10<sup>-4</sup> radiator (Call MCC). Beam current: 50nA. Repeat at 100 nA and 200 nA
+
−
#* Inform Richard Jones that we are getting ready to use the Active Collimator, and ask him if he needs to check the Active Collimator with the beam. <font color="red"> ask richard whether profiler in or out </font>
+
−
#* Photon flux optimization and Active Collimator calibration. (1h). <b><em><font color="green"> V  </font></em></b> <br /> Call Hovanes. <font color="red"> will postpone to duirng day time </font> (Requires confirmation from Richard about using the Active Collimator, see step above). <font color="red"> the following steps will be done by Hovanes; solenoid should be on to protect FDC & CDC b/c collimator will be moved to 5 mm hole </font>
+
−
#**re-Insert the 10<sup>-4</sup> radiator (Call MCC). Use about 100 nA beam current. This will provide the Act. Col. nominal positions for its high gain values.
+
−
#**Determine maximum photon beam transmission by doing 2D scans using the collimator x/y motions (Hovanes. 1h)
+
−
#** Repeat procedure with 2*10<sup>-5</sup> radiator (Call MCC) and 50 nA beam current. This will provide the Act. Col. nominal positions for its low gain values.
+
−
#**Record on the white board what is the beam position on 5C11b and  Active Collimator for optimal photon transmission, both for low and high Act. Col. gain.
+
−
#**Until Hovanes determines to optimal 5C11b and Active Collimator position, keep profiler in and beam locked (MCC's duty) on the nominal 5C11b and x=0,y=0 profiler position. Once Active Collimator nominal beam position is known, retract profiler and lock the beam (MCC) on the active collimator.
+
−
#Detector and beamline checkout. <font color="green"> V </font>
+
−
#*microscope alignment with motor. During this, beam needs to be relatively well centered on collimator (R. Jones/(<font color="red">Hovanes is needed for this</font>))  <b><em><font color="green"> V  </font></em></b>
+
−
#*Any time before starting production (beam quality is not important, but see previous step above): microscope HV scan (2h, R. Jones)  <b><em><font color="green"> V  </font></em></b>
+
−
#*Reestablish L1 trigger (Alex. Somov. 2h).  <font color="green"> V </font>
+
−
#*PS and TAGH HV scan.  (Alex. Somov. 1h). <font color="green"> V </font>
+
−
#*Reestablish DAQ (Sergei, 2h). <b><em><font color="green"> V  </font></em></b>
+
−
#[https://halldweb.jlab.org/hdops/wiki/index.php/Winter_2023_detector_checkout_%2B_CDC_scan General detector calibration + HV scans (Sean Dobbs 6h [Simon's phone number in the counting room list. For Sean and Torri, they are commented out: edit this page to access them]. Use 4.5×10<sup>-4</sup> Al. radiator (on goni). This procedure will go for the first time to 350 nA.]
+
−
#Diamond <font color="blue"> JD70-103 </font> alignment check (2 directions already aligned for CPP). (Hovanes. 8h).  <font color="green"> V </font>
+
−
#Inform MCC that they can run their procedure to set the Ion Chambers trip threshold on diamond <font color="blue"> JD70-103 </font>.
+
−
#GlueX-II production <font color="green"> Ongoing </font>
+
−
#*Standard configuration: JD70-103 diamond, 300 nA, 5 mm hole, TPol on 75 μm TPol convertor. 2h runs <b>and no more, as it may be hard to correct for calibration drifts</b>. Cycle over 9 sets of runs: 2 runs 0<sup>o</sup>, then 2 runs 90<sup>o</sup>, then 2 runs 45<sup>o</sup>, then 2 runs 135<sup>o</sup>, then 1 amorphous (goniometer) run.  
+
 
#**Amorphous runs: 4.5×10<sup>-4</sup> Al. radiator (on goni). 300nA. Use the amo run to rejuvenate the amo reference in CBREM GUI, every cycle.
 
#**Amorphous runs: 4.5×10<sup>-4</sup> Al. radiator (on goni). 300nA. Use the amo run to rejuvenate the amo reference in CBREM GUI, every cycle.
 
#*Do not attempt to save time by pre-starting the run and wait for beam to return. [https://logbooks.jlab.org/entry/4102104 See why here]
 
#*Do not attempt to save time by pre-starting the run and wait for beam to return. [https://logbooks.jlab.org/entry/4102104 See why here]
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#Amorphous run. Every set of 4 diam. orientation runs. 1h Standard production current. Time to switch from pol. to unpol.: 10min.  time to switch from unpol. to pol.: 30min.
 
#Amorphous run. Every set of 4 diam. orientation runs. 1h Standard production current. Time to switch from pol. to unpol.: 10min.  time to switch from unpol. to pol.: 30min.
  
−
Right after beam shutdown: From Simon's reconstruction analysis, do we need to resurvey the Start Counter once the target cart is pulled out? Any other after-run survey required?
+
Right after beam shutdown: From Simon's reconstruction analysis, do we need to resurvey the Start Counter once the target cart is pulled out? Any other after-run survey required?-->
  
 
== Hall D situation room (current run plan) ==
 
== Hall D situation room (current run plan) ==

Revision as of 08:37, 18 March 2025

Spring 2025 Run

Google Spreadsheet.


GlueX experiment (January 24 - July 20 2025)

GlueX Run Certificate 2025

Connect Information

To connect, please see the information on the GlueX meeting wikipage


Meeting General Agenda

Run planning meetings:


Beam and Hall configuration

  • Commissioning of ECal.
  • Commissioning of FCal.
  • Experiment: GlueX-II/JEF.
  • Beam energy expected:
    • 12 GeV
  • Beam polarization expected:
    • from 5% to 73%, depending on other passes of the other Halls . No expectation of decent polarization before March 19th. Then 73% for the rest of the run.
  • Solenoid:
    • 1350A
  • CW Beam:
    • 250 MHz frequency.
    • Range: 1na-1000 nA.
    • Chopper slit: TBD
    • Standard current and radiators
      • 300 nA on a 4.1·10-4 R.L. radiator (50 μm diamond). (RSAD limit 400nA on 58 μm diamond))
      • 300 on a 33.7·10-5 R.L. AL radiator (30 µm Al). (RSAD limit 480nA on 30 µm Al radiator))
  • Position Slow Lock on or FFB on (FFB doesn't operate below 50nA).
  • Radiators:
    • Goniometer radiators: Start with JD70-107. Next, JD70-109. JD70-103 may still be usable if needed.
      • Diamond JD70-107 (55 μm - 4.6·10-4 R.L., 7×7 mm²) New crystal. (Not expected to be great according to rocking curve.)
      • Diamond JD70-109 (50 μm - 4.1·10-4 R.L., 7×7 mm² - New crystal - (Not expected to be good according to rocking curve.)
      • Diamond JD70-103 (50 μm - 4.1·10-4 R.L., 7×7 mm²) Used in CPP. Partly spent.
      • (Diamond JD70-106 (50 μm - 4.1·10-4 R.L., 7×7 mm²) - Aligned and used shortly during Tagger Accidental test in Spring 2020. Did not display sharp coherent peak.)
      • (Diamond JD80-212 (80 μm - 6.6·10-4 R.L., 8×8 mm²) - To be tested.)
      • (Diamond JD80-213 (80 μm - 6.6·10-4 R.L., 8×8 mm²) - To be tested.)
      • Amorphous 40 μm Al radiator (44.9·10-5 R.L.)
      • Amorphous 1.86·10-5 R.L., (for TAC run).
    • Amorphous
      • 1.64 µm Al (1.86·10-5 R.L., see study)
      • 10 µm Al (11.2·10-5 R.L.)
      • 30 µm Al (33.7·10-5 R.L.)
  • Tagger quadrupole on (-4.2 A).
  • Collimator hole: Default running: 5.0 mm.
  • TPol converter: 75 μm

General Information

This document describes the run plan for the Hall D Spring 2025 run.

  1. February or March TBD: Electron beam restoration.
  2. January 24th - July 20th: 26 weeks for upgraded ECal commissioning and GlueX-II/JEF. As of 02/25/25, 9 weeks shift ⇒ March. 21st - Sept. 15th ?
  • Accelerator overall plan and priorities: Deliver physics beam to 4 halls
  • Hall D plan summary:
    • Beam and detector check-out: 50 - 300 nA. ~ a day.
      • Commission new beam profiler from Regina (Hovanes).
    • Commission of ECal (~ a month. 150 nA)
      • Opportunistic tests during possible pauses of ECAL Commissioning:
        • Diamond alignment (Hovanes, see below)
        • CDC HV scans (Beni, Naomi). Need compatible trigger
        • ToF HV scans (Beni). Need compatible trigger
        • Lead glass HV scans (Malte). Need compatible trigger
        • Study thick 80μm new diamond (Richard).
        • Others?
    • Commissioning of FCal (In parallel with ECal. Needs a commissioning plan.)
    • Diamond alignment: Stable beam (no frequent trip) 20 nA without FSD for 2-3 shifts.
    • Experiment: GlueX-II/JEF E12-12-002
    • 2 TAC runs. ~nA or less. The bleedthrough should be small compare to it. 1 run just after ECAL Commissioning. Another near the end of the run.
      • Ideally, TAC run should be done with the other Halls off.
      • If not possible, the next best option is to have both A and C not at 5 passes, so that magnetic extraction is performed (less bleedthrough than with RF separation).
        • Either Hall A or C or both are at 5 passes during the whole run ⇒ we will have to watch for opportunity when the Hall at 5 passes is down.
    • High luminosity runs: up to 1 week at 650nA, and up to 1 day at 1 uA.
    • 2 empty target runs (300 nA). 1 run at the start of GlueX-II data taking. Another near the end of the run.
    • Straight track run: 2 shifts (50% efficiency: one shift of good data) (50 nA on 10-4 R.L. radiator).
    • Opportunistic tests:
      • GEM-TRD test during ECAL Commissioning Positioned 3 to 6 o'clock in front of forward detectors, looking downstream.
  • Expected Staffing and responsibilities:
    • The Run Coordinator oversees the run:
      • Jan. ?? - ??, ?? days (beam restoration): Alexandre Deur
      • Jan. 24 - 29, 6 days: Alexandre Deur
      • Jan. 29 - Feb. 5, 1 week: Igal Jaegle
      • Feb. 5-12, 1 week: Simon Taylor
      • Feb. 12-19, 1 week: Edmundo Barriga
      • Feb. 19-26, 1 week: Colin Gleason
      • Feb. 26-March 5, 1 week: Igal Jaegle
      • March 1-5 5 days: Alexandre Deur
      • March 5-12, 1 week: Simon Taylor
      • March 12-19, 1 week: Igal Jaegle
      • March 19-26, 1 week: Alexandre Deur
      • March 26-Apr. 2, 1 week: Igal Jaegle
      • Apr. 2-9, 1 week: Naomi Jarvis
      • Apr. 9-16, 1 week: Mark Dalton
      • Apr. 16-23, 1 week: Hao Li
      • Apr. 23-30, 1 week: Mike McCaughan
      • Apr. 30-May 7, 1 week: Alexandre Deur
      • May 7-14, 1 week: Richard Jones
      • May 14-21, 1 week: Justin Stevens
      • May 21-28, 1 week: Boris Grube
      • May 28-June 4, 1 week: Amy Schertz
      • June 4-11, 1 week: Edmundo Barriga
      • June 11-18, 1 week: Naomi Jarvis
      • June 18-25, 1 week: Drew Smith
      • June 25-July 2, 1 week: Hao Li
      • July 2-9, 1 week: Simon Taylor
      • July 9-16, 1 week:
      • July 16-23, 1 week: Mark Dalton
      • July 23-30, 1 week: Alexandre Deur
      • July 30-Aug. 6, 1 week: Mike McCaughan
      • Aug. 6-13, 1 week: Colin Gleason
      • Aug. 13-20, 1 week: Simon Taylor
      • Aug. 20-27, 1 week: Edmundo Barriga
      • Aug. 27-Sept. 3, 1 week: Boris Grube
      • Sept.3-10, 1 week: Drew Smith
      • Sept.10-15, 6 days: Igal Jaegle
  • The Physics Division Liaison (PDL) and Hall D Work Coordinator/Safety Warden (S. Spiegel) verify that the proper safety rules are followed. PDL is:
    • PDL: B.Zihlmann
  • The analysis coordinator (Alexander Austregesilo) oversees the off-line diagnostic of the different systems and analysis of the data.
  • Shifts: 2 person shifts: 1 leader and 1 worker, both on-site, scheduled through the GlueX shift scheduler.
  • Coordination Activities:
    • The RC will attend the MCC meetings at 7:45am and 8:00am and the weekly MCC meeting (Wednesday, 1:30pm). The PDL will attend the weekly MCC meeting.
    • Run meetings: broadcasted on Zoom. 8:45am in the counting house conference room. The Run Coordinator will be responsible for organizing and chairing the meeting.

Runplan

Hall D situation room (current run plan)

Hall D counting room white board


Accelerator status

Hot Checkout

To be completed by TBD

93% ready ; 3% checked ; 4% not ready

Readiness of subsystems for Spring 2025 run

(This section is commented out for clarity)

Live Camera Feeds from the Four Counting Houses

  1. These feeds SHOULD be open and visible at all times from one of the monitors in each of the counting houses.
  2. Management cautions AGAINST opening them from other locations or offsite, out of concern for available bandwidth.
  • Beni will contact Walt Akers to inquire about their status. Done. Walt will take care of it.

Running Shifts Remote

Retrieved from "https://halldweb.jlab.org/wiki/index.php?title=Run_Coordination_Meetings:Spring2025&oldid=129036"