Difference between revisions of "RC meeting and Run Plan, Tuesday Nov 20"

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(Created page with "= RC Meeting Information = <b> RC Daily Meetings are at 4:30 PM, 2nd floor Counting House Meeting Room </b> * Bluejeans remote connection information: To join the Meeting:...")
 
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= Current Status =
 
= Current Status =
*
+
* Taking kinematic [https://hallcweb.jlab.org/wiki/index.php/CSV_Fall_2018_Run_Plan#Kinematic_Group_16:_Q2_.3D_4.775_GeV2.2C_x_.3D_0.6 Group 16 (Q2 = 4.77, x = 0.6, pi-)]
 +
* [RC Daily Update Tuesday, November 20]
  
 
= Current Run Plan =
 
= Current Run Plan =
*
+
* Order of Kinematic Groups
 +
** [https://hallcweb.jlab.org/wiki/index.php/CSV_Fall_2018_Run_Plan#Kinematic_Group_16:_Q2_.3D_4.775_GeV2.2C_x_.3D_0.6 Group 16 (Q2 = 4.77, x = 0.6, pi-)]
 +
** [https://hallcweb.jlab.org/wiki/index.php/CSV_Fall_2018_Run_Plan#Kinematic_Group_15:_Q2_.3D_4.775_GeV2.2C_x_.3D_0.6 Group 15 (Q2 = 4.77, x = 0.6, pi+)]
 +
** [https://hallcweb.jlab.org/wiki/index.php/CSV_Fall_2018_Run_Plan#Kinematic_Group_11:_Q2_.3D_5_GeV2.2C_x_.3D_0.5 Group 11 (Q2 = 5.0, x = 0.5, pi+)]
 +
** [https://hallcweb.jlab.org/wiki/index.php/CSV_Fall_2018_Run_Plan#Kinematic_Group_12:_Q2_.3D_5_GeV2.2C_x_.3D_0.5 Group 12 (Q2 = 5.0, x = 0.5, pi-)]
  
 
= Notices in Effect for Shift Crew =
 
= Notices in Effect for Shift Crew =
*
+
* Shift leaders, please fill out the check list once per shift!
 +
* It is no longer required to fill out the standard.kinematics file online, it is now done automagically
 +
* Split the large desired charge between multiple runs (~1 hour per run)
 +
* Listed currents are estimates. For runs at less than 60uA, increase current until SHMS singles rates are between 400k-500k.
 +
* How-to power cycle PLC I/O chassis: https://logbooks.jlab.org/entry/3625862, https://logbooks.jlab.org/entry/3625900
  
 
= Current Issues =
 
= Current Issues =
*
+
* Worsening of coincidence time resolution
 +
** [https://logbooks.jlab.org/entry/3625217 Cause of coin. time jitter (resolution loss) may have been found?]  -Brad S.
 +
** [https://logbooks.jlab.org/entry/3625390 Coincidence time after insertion of passive delay] -Dave G.
 +
** [https://logbooks.jlab.org/entry/3625474 Follow-up Re: Coincidence time after insertion of passive delay]  -Dave G. with comment from Dave M.
 +
** [https://logbooks.jlab.org/entry/3625832 More jitter tests -- nothing found on scope...] -Brad S.
 +
** [https://logbooks.jlab.org/entry/3626160 HMS/SHMS TOF resolutions using hodoscope beta] -Mark J.
 +
** [https://logbooks.jlab.org/entry/3626194 RF time and coincidence time] -Mark J.
 +
** [https://logbooks.jlab.org/entry/3626796 Yet more jitter tests -- found small issue w/ ref time, but nothing that impacts coin. times] -Brad S.
  
 
= Planned Accesses to the Hall =
 
= Planned Accesses to the Hall =
*
+
* Monday, Nov 26: aerogel change and HGC work needs to be coordinated with Walter K., we must be in restricted access for this work
  
 
= Planned Accelerator Configuration Changes =
 
= Planned Accelerator Configuration Changes =
*
+
* Tuesday, Nov 20: CHL UPS battery change, should be noninvasive however, induce CHL anomaly is possible
 +
* Wednesday, Nov 21: Hall A goes offline and MCC wants to conduct high current beam study of energy spread at 40 uA.  It is unclear that we will be effected
 +
* Monday, Nov 26: Energy change to 1.86 GeV/pass, we will be moved over to 500 MHz laser.
  
 
= Special Requests =
 
= Special Requests =
*
+
* Harp scan at 3H07A and 3H07B with raster off to address possible issues with harp (https://logbooks.jlab.org/entry/3624463)
 +
* Vijay Kumar (Regina group) has requested a walkthrough during the next access
 +
* Jay B. would like to conduct another beam steering test (5 minute procedure) during the next polarity change.  He requests to only be contacted if the polarity change occurs during the hours of 0630 and 1930.

Revision as of 11:50, 19 November 2018

RC Meeting Information

RC Daily Meetings are at 4:30 PM, 2nd floor Counting House Meeting Room

  • Bluejeans remote connection information:
 To join the Meeting:
 https://bluejeans.com/861439920
 To join via Room System:
 Video Conferencing System: bjn.vc -or-199.48.152.152
 Meeting ID : 861439920
 To join via phone :
 1)  Dial:
   +1.408.740.7256 (US (San Jose))
   +1.888.240.2560 (US Toll Free))
   +1.408.317.9253 (US (Primary, San Jose))
   (see all numbers - http://bluejeans.com/numbers)
 2)  Enter Conference ID : 861439920

Useful Links

Current Status

Current Run Plan

Notices in Effect for Shift Crew

  • Shift leaders, please fill out the check list once per shift!
  • It is no longer required to fill out the standard.kinematics file online, it is now done automagically
  • Split the large desired charge between multiple runs (~1 hour per run)
  • Listed currents are estimates. For runs at less than 60uA, increase current until SHMS singles rates are between 400k-500k.
  • How-to power cycle PLC I/O chassis: https://logbooks.jlab.org/entry/3625862, https://logbooks.jlab.org/entry/3625900

Current Issues

Planned Accesses to the Hall

  • Monday, Nov 26: aerogel change and HGC work needs to be coordinated with Walter K., we must be in restricted access for this work

Planned Accelerator Configuration Changes

  • Tuesday, Nov 20: CHL UPS battery change, should be noninvasive however, induce CHL anomaly is possible
  • Wednesday, Nov 21: Hall A goes offline and MCC wants to conduct high current beam study of energy spread at 40 uA. It is unclear that we will be effected
  • Monday, Nov 26: Energy change to 1.86 GeV/pass, we will be moved over to 500 MHz laser.

Special Requests

  • Harp scan at 3H07A and 3H07B with raster off to address possible issues with harp (https://logbooks.jlab.org/entry/3624463)
  • Vijay Kumar (Regina group) has requested a walkthrough during the next access
  • Jay B. would like to conduct another beam steering test (5 minute procedure) during the next polarity change. He requests to only be contacted if the polarity change occurs during the hours of 0630 and 1930.