Difference between revisions of "Run Planning Meeting Notes, October 21 - October 27, 2021"

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(Friday, October 22)
(Friday, October 22)
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=Friday, October 22=
 
=Friday, October 22=
 
# Last 24h: Production runs continued smoothly until 2:51pm when an arc magnet tripped. About 7pm the team looking at the power supply found that there was a short in any one of the 42 magnets downstream, they will resume work in the morning. [https://logbooks.jlab.org/entry/3930057 Shifts were cancelled until 9am.]
 
# Last 24h: Production runs continued smoothly until 2:51pm when an arc magnet tripped. About 7pm the team looking at the power supply found that there was a short in any one of the 42 magnets downstream, they will resume work in the morning. [https://logbooks.jlab.org/entry/3930057 Shifts were cancelled until 9am.]
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{| border="0" cellpadding="2"
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|[[Image:arc7.png|thumb|x300px|arc 7 trip]]
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|}
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#* [https://logbooks.jlab.org/entry/3929614 extra PS shielding added on Wednesday]
 
#* [https://logbooks.jlab.org/entry/3929614 extra PS shielding added on Wednesday]
 
#* [https://logbooks.jlab.org/entry/3929964 FCAL comms restored]
 
#* [https://logbooks.jlab.org/entry/3929964 FCAL comms restored]

Revision as of 08:12, 22 October 2021

<-- Summer 2021 RC meetings MCC whiteboard

Thursday, October 21

  1. Last 24h:
  2. Remaining issues:
    • Tagger hodoscope time shifts
    • communication with accel. w.r.t. tagger magnet - Paul Vasilauskis (Ops group leader): "I am putting out to my staff to contact the hall if they do need to touch the magnet and am looking into adding wording to the magnet screens"
    • BCAL noise at 10 o'clock
    • Bleedthrough
  3. Plan:
    • When the beam is back continue production at 200nA after the usual checks (radiation levels & harp scans)
    • Continue running with the solenoid on & target full until Friday or later
    • Pass change for A&B Saturday morning (A->4 pass)
    • Expect downtime Monday morning for VIP tour, start time TBC probably ~7am.
    • Ops will need another maintenance day before the energy change

Friday, October 22

  1. Last 24h: Production runs continued smoothly until 2:51pm when an arc magnet tripped. About 7pm the team looking at the power supply found that there was a short in any one of the 42 magnets downstream, they will resume work in the morning. Shifts were cancelled until 9am.
arc 7 trip
  1. Remaining issues:
    • BCAL noise at 10 o'clock
    • Bleedthrough
  2. Plan:
    • Call Chris Keith (to watch the target fill) & staff the counting house when we expect beam within 3h.
    • When the beam is back continue production at 200nA after the usual checks (radiation levels & harp scans)
    • Continue running with the solenoid on & target full until further notice
    • Pass change for A&B might be deferred to Saturday swing or Sunday day (A->4 pass)
    • Expect downtime Monday morning for VIP tour, start time TBC probably ~7am.