Difference between revisions of "Run Planning Meeting Notes, January 19 - January 25, 2023"

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(Friday January 20)
(Friday January 20)
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= Friday January 20 =
 
= Friday January 20 =
 
=== Past 24 hours ===
 
=== Past 24 hours ===
* Ran on amorphous radiator (250 nA) until 10am. Then, beam was taken away for [https://logbooks.jlab.org/entry/4113138 RF work (high current push for Halls A and C)] and [repairs]. Beam came back around 5:30pm. We did harp scans and ran on various amorphous radiators during the night. ABU= **h for the day
+
* Ran on amorphous radiator (250 nA) until 10am. Then, beam was taken away for [https://logbooks.jlab.org/entry/4113138 RF work (high current push for Halls A and C)] and [repairs]. Beam came back around 5:30pm. We did harp scans, a BCM/FCup calibration, and then [https://logbooks.jlab.org/entry/4113378 ran on various amorphous radiators during the night]. ABU= **h for the day
 
* Several accesses done during the day:
 
* Several accesses done during the day:
 
** Sasha (FADC replacement for TOF)
 
** Sasha (FADC replacement for TOF)
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* [https://logbooks.jlab.org/entry/4112998 Day shift summary]
 
* [https://logbooks.jlab.org/entry/4112998 Day shift summary]
 
* [https://logbooks.jlab.org/entry/4113173 Swing shift summary]
 
* [https://logbooks.jlab.org/entry/4113173 Swing shift summary]
* [ Owl shift summary]
+
* [https://logbooks.jlab.org/entry/4113378 Owl shift summary]
 
* [ Early Riser shift summary]
 
* [ Early Riser shift summary]
  
 
=== Reports ===
 
=== Reports ===
* [ Harp scans]
+
* [https://logbooks.jlab.org/files/2023/01/4113248/harpscan20230119-1815.pdf Harp scans.] Sigma_y is too wide=> too wide photon beam spot (magenta). Okay for now (unpolarized beam)?
 
* [https://logbooks.jlab.org/entry/4112963 TOF calibration (Beni)], [https://logbooks.jlab.org/entry/4113076 FADC replacement for TOF (A. Somov)]
 
* [https://logbooks.jlab.org/entry/4112963 TOF calibration (Beni)], [https://logbooks.jlab.org/entry/4113076 FADC replacement for TOF (A. Somov)]
  
 
=== Issues ===
 
=== Issues ===
* [https://logbooks.jlab.org/entry/4113047 Beam energy oscillation investigation (M. Tiefenback)]
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* [https://logbooks.jlab.org/entry/4113047 Beam energy oscillation investigation (M. Tiefenback)]. Summary: Mike T. suspects the oscilations are not real but he is asking confirmation/advice from the system experts.
 +
*[https://logbooks.jlab.org/entry/4113408 Tim W. reminder on acknowledging alarms]
 
* 30% increase in transmission compared to Summer 2020 run.
 
* 30% increase in transmission compared to Summer 2020 run.
 
**[https://logbooks.jlab.org/entry/4111933 Original finding by A. Somov]
 
**[https://logbooks.jlab.org/entry/4111933 Original finding by A. Somov]
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**[https://logbooks.jlab.org/entry/4113193 Check that TAGH counters scale with (A. Deur)]
 
**[https://logbooks.jlab.org/entry/4113193 Check that TAGH counters scale with (A. Deur)]
 
**[https://logbooks.jlab.org/entry/4113098 rho and pi0 yields (A. Austregesilo)]  
 
**[https://logbooks.jlab.org/entry/4113098 rho and pi0 yields (A. Austregesilo)]  
 +
**[https://logbooks.jlab.org/entry/4113253 BCM/FCup calibration suggested by the PD], [https://logbooks.jlab.org/entry/4113276 its results] and [https://logbooks.jlab.org/entry/4113408 follow-up].
  
 
=== Plans ===
 
=== Plans ===

Revision as of 08:04, 20 January 2023

Friday January 20

Past 24 hours

Shift Reports

Reports

Issues

Plans

  • Thursday evening and Friday night:
    • Once beam come back, do Harp scans.
    • FCup test of our beam dump BCM.
    • Run 1h on the amo radiator of the goni (baseline for next runs below). 250 nA
    • Run 2h on 0.19E-4 RL amo radiator on radiator ladder (250 nA).
    • Run 2h on 1.12E-4 RL amo radiator on radiator ladder (250 nA).
    • Run (until the beam is taken away in the morning) on 3.4E-4 RL amo radiator on radiator ladder (250 nA).
  • Beam off starting Friday morning around 7:30am to fix vacuum issue in south linac, until 4pm(?).
  • Hall access:
    • Sergey F.
  • Diamond alignment: ?
  • Until then production on amorphous.
  • Link to runplan

Thursday January 19

Past 24 hours

  • Ran on empty target until 7:20am. Then, beam was taken away for beam and RF study and acceptable beam came back only Thursday at 1:10am. ABU= 4h for the day
  • refilled the target around 4:15pm.
  • Several accesses done during the day:
    • Scott
    • Sergey
    • David Lawrence
    • Cody
  • Took amorphous data, starting around 1:10am after aborted attempt to check diamond alignment.

Shift Reports

Reports

Issues

Plans

  • Beam off starting around 10am for RF study, nominally until 4pm+/-4h.
  • Hall in controlled access?
  • Diamond alignment: Friday day ? (Hovanes unavailable today)
  • Until Friday day, production on amorphous?
  • Link to runplan