Difference between revisions of "RC Meeting, Wednesday, September 29 , 2021"
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# The refurbished breaker was installed around 4 pm yesterday, and the beam came back to the hall around 7:30 pm. | # The refurbished breaker was installed around 4 pm yesterday, and the beam came back to the hall around 7:30 pm. | ||
# We took around 11 hours of beam from Tuesday 7:30 pm to 6:30 am this morning we further increased the pion count to 4155. | # We took around 11 hours of beam from Tuesday 7:30 pm to 6:30 am this morning we further increased the pion count to 4155. | ||
− | Maintenance item performed on Tuesday: | + | # Maintenance item performed on Tuesday: |
− | # Walter and techs performed N2 pumping on the HMS transfer line. | + | #* Walter and techs performed N2 pumping on the HMS transfer line. |
− | # Dave switched the leads on the fan, no change on the coolant flow was observed: https://logbooks.jlab.org/entry/3914000 | + | #* Dave switched the leads on the fan, no change on the coolant flow was observed: https://logbooks.jlab.org/entry/3914000 |
− | # Based on our request, the raster magnets were restored to the original four coil operation. Now we ask 2x2 raster to get a 2x2 raster: https://logbooks.jlab.org/entry/3913853 | + | #* Based on our request, the raster magnets were restored to the original four coil operation. Now we ask 2x2 raster to get a 2x2 raster: https://logbooks.jlab.org/entry/3913853 |
− | # Tune mode generator fixed! (Maybe forever). | + | #* Tune mode generator fixed! (Maybe forever). |
− | # Greg target trained half a dozen | + | #* Greg target trained half a dozen people. |
= Current Run Plan = | = Current Run Plan = | ||
# Accelerator status | # Accelerator status | ||
#* Accelerator maintenance ends at 4 pm. Beam back into the Hall at 6pm. | #* Accelerator maintenance ends at 4 pm. Beam back into the Hall at 6pm. | ||
− | |||
# Once the beam is here, resuming Q2=6 GeV left setting | # Once the beam is here, resuming Q2=6 GeV left setting | ||
#* FACDMODE10 data taken | #* FACDMODE10 data taken | ||
Line 46: | Line 45: | ||
= Current Issues = | = Current Issues = | ||
* Target ladder camera was identified to be bad: Joe will purchase a replacement in the next funding cycle | * Target ladder camera was identified to be bad: Joe will purchase a replacement in the next funding cycle | ||
+ | * Why did target draw so much coolant | ||
+ | ** Contact Chris Perry (Cryo engineer) | ||
+ | * HCDESK1 computer still dead | ||
+ | * Contact Ellen if there is an opportunity to access the hall (longer than 4 hours). This is for diagnosing the SHMS power supply. | ||
= Special Requests = | = Special Requests = | ||
None | None |
Latest revision as of 14:49, 29 September 2021
Contents
RC Meeting Information
RC Daily Meetings are at 10 am, remote
- 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
Tuesday Status
- The refurbished breaker was installed around 4 pm yesterday, and the beam came back to the hall around 7:30 pm.
- We took around 11 hours of beam from Tuesday 7:30 pm to 6:30 am this morning we further increased the pion count to 4155.
- Maintenance item performed on Tuesday:
- Walter and techs performed N2 pumping on the HMS transfer line.
- Dave switched the leads on the fan, no change on the coolant flow was observed: https://logbooks.jlab.org/entry/3914000
- Based on our request, the raster magnets were restored to the original four coil operation. Now we ask 2x2 raster to get a 2x2 raster: https://logbooks.jlab.org/entry/3913853
- Tune mode generator fixed! (Maybe forever).
- Greg target trained half a dozen people.
Current Run Plan
- Accelerator status
- Accelerator maintenance ends at 4 pm. Beam back into the Hall at 6pm.
- Once the beam is here, resuming Q2=6 GeV left setting
- FACDMODE10 data taken
- Dummy target run daily.
- 3300 pions (32% of the statistics with 52% of the charge)
- MCC whiteboard
- Rotation on Friday?
Current Issues
- Target ladder camera was identified to be bad: Joe will purchase a replacement in the next funding cycle
- Why did target draw so much coolant
- Contact Chris Perry (Cryo engineer)
- HCDESK1 computer still dead
- Contact Ellen if there is an opportunity to access the hall (longer than 4 hours). This is for diagnosing the SHMS power supply.
Special Requests
None