Difference between revisions of "June 17, 2022"

From HallCWiki
Jump to navigationJump to search
 
(26 intermediate revisions by the same user not shown)
Line 47: Line 47:
 
*** [https://logbooks.jlab.org/entry/4003722 HMS Q1, Q2 Dipole interlocks]
 
*** [https://logbooks.jlab.org/entry/4003722 HMS Q1, Q2 Dipole interlocks]
 
***  [https://logbooks.jlab.org/entry/4003720 HMS Dipole waterflow interlock explanation]
 
***  [https://logbooks.jlab.org/entry/4003720 HMS Dipole waterflow interlock explanation]
*** Currently S. Lassiter is back in counting house and ramping up magnets
+
*** [https://logbooks.jlab.org/entry/4003803 HMS LCW  snapshots of debris found]
 +
*** S. Lassiter ramped magnets back up and there seems to be OK now.
  
 
= Current Run Plan =
 
= Current Run Plan =
*
+
* Complete Carbon Foil +/- 8 cm (part of HMS Optics plan) (<span style="color:darkgreen"> '''DONE''' </span>)
 +
* Complete Single Carbon Foil on HMS
 +
* Do Coincidence Trigger Checkout
 +
* Do single  Heep coin setting
 +
* Begin production physics
  
 
= Notices in Effect for Shift Crew =
 
= Notices in Effect for Shift Crew =
*
+
* Please pro-rate ABU for max current limit in run plan (uA) in beam time accounting. For example, if we receive 15 uA instead of the max_current_limit in the run plan, then the ABU should be:  ABU_prorated = 15/(max current limit) * ABU
 +
* Message from Ole Hansen: There will be a brief (<30min) outage of the Hall A and Hall C /work servers on Tuesday (6/21). This will happen during the workday already instead of the usual 5pm-10pm time slot for monthly IT maintenance. Please plan accordingly, i.e. don't start any mass replays ;-)
  
 
= Current Issues =
 
= Current Issues =
Line 59: Line 65:
  
 
= Planned Accesses to the Hall =
 
= Planned Accesses to the Hall =
*
+
* During the next accelerator maintenance period (Wed Jun 22):
 +
**  S. Lassiter needs to put crush washers in LCW filters, so we may see a little bit of water by the HMS boogie for now, until he can put the washers next week, during maintenance period [https://logbooks.jlab.org/entry/4003796 HMS Dipole LCW]  (<span style="color:red"> '''PENDING''' </span>)
 +
** Need to check SHMS ROC 4 Slot 9 Channel 0 FADC for potentially loose connection, as Column 5, Row 1 block appears to have no occupancy. [https://logbooks.jlab.org/entry/4003855 SHMS Cal Occupancy]  (<span style="color:red"> '''PENDING''' </span>)
 +
** Xinzhan Bai request to go to restricted access to quickly swap MPD electronics out and check signals (~ 30 min.), whenever there is extended down (most likely during next accelerator maintenance period) : Contact: xbai@jlab.org,  cell: (434) 422-2809  (<span style="color:red"> '''PENDING''' </span>)
  
 
= Planned Accelerator Configuration Changes =
 
= Planned Accelerator Configuration Changes =
Line 65: Line 74:
  
 
= Special Requests =
 
= Special Requests =
* request to go in and work on faulty HV power supply replacement (~ 30 min.), whenever there is extended down (most likely during next accelerator maintenance period)
+
* Mark Jones would like to take HMS optics data with a 4x4 mm^2 raster at some point (when HMS is at a lower momentum, i.e., current setting) for checks.  (<span style="color:red"> '''PENDING''' </span>)

Latest revision as of 17:35, 17 June 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)
 +16468287666,,1607100885# US (New York)
 Dial by your location
       +1 669 254 5252 US (San Jose)
       +1 646 828 7666 US (New York)
       +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

  • Jun 17 - Owl (today)
    • limited to 15 uA beam due to accelerator issues (Ops will work on Hall C line today to try and give us higher currents)
    • completed the detector checkout part of run plan
    • while doing +/-8 cm C12 optics run plan, HMS Dipole interlocked (~ 4:30 am )
    • SHMS optics was taken instead in the meantime
    • towards the end of Owl, HMS Q2, Q2 Dipole had all went to interlock

Current Run Plan

  • Complete Carbon Foil +/- 8 cm (part of HMS Optics plan) ( DONE )
  • Complete Single Carbon Foil on HMS
  • Do Coincidence Trigger Checkout
  • Do single Heep coin setting
  • Begin production physics

Notices in Effect for Shift Crew

  • Please pro-rate ABU for max current limit in run plan (uA) in beam time accounting. For example, if we receive 15 uA instead of the max_current_limit in the run plan, then the ABU should be: ABU_prorated = 15/(max current limit) * ABU
  • Message from Ole Hansen: There will be a brief (<30min) outage of the Hall A and Hall C /work servers on Tuesday (6/21). This will happen during the workday already instead of the usual 5pm-10pm time slot for monthly IT maintenance. Please plan accordingly, i.e. don't start any mass replays ;-)

Current Issues

Planned Accesses to the Hall

  • During the next accelerator maintenance period (Wed Jun 22):
    • S. Lassiter needs to put crush washers in LCW filters, so we may see a little bit of water by the HMS boogie for now, until he can put the washers next week, during maintenance period HMS Dipole LCW ( PENDING )
    • Need to check SHMS ROC 4 Slot 9 Channel 0 FADC for potentially loose connection, as Column 5, Row 1 block appears to have no occupancy. SHMS Cal Occupancy ( PENDING )
    • Xinzhan Bai request to go to restricted access to quickly swap MPD electronics out and check signals (~ 30 min.), whenever there is extended down (most likely during next accelerator maintenance period) : Contact: xbai@jlab.org, cell: (434) 422-2809 ( PENDING )

Planned Accelerator Configuration Changes

Special Requests

  • Mark Jones would like to take HMS optics data with a 4x4 mm^2 raster at some point (when HMS is at a lower momentum, i.e., current setting) for checks. ( PENDING )