Difference between revisions of "November 16, 2022"

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(Created page with "= RC Meeting Information = * [https://hallcweb.jlab.org/wiki/index.php/RC_daily_meetings_fall_2022 Return to RC meeting main page] <b> RC Daily Meetings are at 11:00 (am) via...")
 
 
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= Current Status =
 
= Current Status =
 +
*Tuesday was maintenance day, hall was locked back up around 3 p.m.
 +
**Larry/Jerry pumped on SHMS transfer lines for a few hours
 +
**Heidi did some checks with thermal camera
 
*Hall Access around 8:40 p.m. to reset a Solid power supply
 
*Hall Access around 8:40 p.m. to reset a Solid power supply
 
*Beam returned around 1 a.m. after maintenance day
 
*Beam returned around 1 a.m. after maintenance day
*Finished Settings 9/10 on HMS
+
*Finished Settings 9/10 on HMS  
 +
*Taking positron data with HMS, electron data with SHMS
 
**The Runplan gets FUN now
 
**The Runplan gets FUN now
  
= Run Plan =
+
= Run Plan (selected) =
*Continue 10/35 degree data taking with settings 9/10 until completed
+
*Positron running on 48Ca at 35degrees with HMS
*Maintentance Day Today!  
+
*20 degree HMS positron data taking at larger x
**Linacs expected to lock up at 2:45, then RF recovery
+
**ALL targets on the ladder!
**Hall is in controlled acces until then
+
*HMS hydrogen elastic data for momentum offset (back in electron mode)
 +
*Rate/tracking study with LD2 target (HMS at 35 deg, SHMS still at 8 degrees)
 +
*Boiling/Luminosity study (higher current, additional points - Thursday, Nov 17)
 +
**Rotate both spectrometers and change momentum
 +
*EMC data on Ca48 with HMS at 35 degrees (several HMS momentum settings)
  
 
= Issues =
 
= Issues =
 
*Current Limited
 
*Current Limited
**Hall A is going to want 60uA starting Thursday
+
 
  
 
= Notes =
 
= Notes =
*Desire for another luminosity scan re-socialized at the 7:45 RC meeting (maybe Thursday, during Hall A's Moller measurement?)
+
*After Thursday's boiling study, our beam authorization will be changed to 60uA (ish)
**Would like additional high current points, including previously unauthorized 70uA
+
*The shifts will be fairly active:
 +
**Spectrometer Rotations
 +
**Momentum Changes
 +
**Target changes
 +
**Diffent KINDS of data being taken
  
 
= To do =
 
= To do =
*Come up with run plan for once 10/35 degree data taking is completed
 

Latest revision as of 10:46, 16 November 2022

RC Meeting Information

RC Daily Meetings are at 11:00 (am) via Zoom and in person in the counting house meeting room (2nd floor)

  • Zoom remote connection information:
 Join ZoomGov Meeting
 https://jlab-org.zoomgov.com/j/1607100885?pwd=ZFBsRTFsYm5Zb0laZ0tyZXNjcEE0QT09
 Meeting ID: 160 710 0885
 Passcode: 595071
 One tap mobile
 +16692545252,,1607100885# US (San Jose)
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 Dial by your location
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       +1 669 216 1590 US (San Jose)
       +1 551 285 1373 US
       833 568 8864 US Toll-free
 Meeting ID: 160 710 0885
 Find your local number: https://jlab-org.zoomgov.com/u/ab2CekLXgQ

Useful Links

Current Status

  • Tuesday was maintenance day, hall was locked back up around 3 p.m.
    • Larry/Jerry pumped on SHMS transfer lines for a few hours
    • Heidi did some checks with thermal camera
  • Hall Access around 8:40 p.m. to reset a Solid power supply
  • Beam returned around 1 a.m. after maintenance day
  • Finished Settings 9/10 on HMS
  • Taking positron data with HMS, electron data with SHMS
    • The Runplan gets FUN now

Run Plan (selected)

  • Positron running on 48Ca at 35degrees with HMS
  • 20 degree HMS positron data taking at larger x
    • ALL targets on the ladder!
  • HMS hydrogen elastic data for momentum offset (back in electron mode)
  • Rate/tracking study with LD2 target (HMS at 35 deg, SHMS still at 8 degrees)
  • Boiling/Luminosity study (higher current, additional points - Thursday, Nov 17)
    • Rotate both spectrometers and change momentum
  • EMC data on Ca48 with HMS at 35 degrees (several HMS momentum settings)

Issues

  • Current Limited


Notes

  • After Thursday's boiling study, our beam authorization will be changed to 60uA (ish)
  • The shifts will be fairly active:
    • Spectrometer Rotations
    • Momentum Changes
    • Target changes
    • Diffent KINDS of data being taken

To do