Difference between revisions of "Run Planning Meeting Notes, December 2 - December 8, 2021"
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#* (urgent) Right Ar tank empty and cylinder needs replacement. | #* (urgent) Right Ar tank empty and cylinder needs replacement. | ||
#* (urgent) Runs not being transferred fully from Hall D to central computing [https://logbooks.jlab.org/entry/3957274] | #* (urgent) Runs not being transferred fully from Hall D to central computing [https://logbooks.jlab.org/entry/3957274] | ||
+ | #* (to do) At next access opportunity, contact IT to replace the switch in the Tagger Hall. | ||
#* (not urgent but noted) Hall D techs need access to retrieve CPP equipment in the next week. | #* (not urgent but noted) Hall D techs need access to retrieve CPP equipment in the next week. | ||
#* (to do) Coordinate with Chris and techs the changing of C target. | #* (to do) Coordinate with Chris and techs the changing of C target. | ||
Line 14: | Line 15: | ||
#* Aligning the peak: Use coarse adjustment to align the distributions (red on blue) and then nudge/fine adjust to line up vertical line fit. | #* Aligning the peak: Use coarse adjustment to align the distributions (red on blue) and then nudge/fine adjust to line up vertical line fit. | ||
#* Take an amorphous run today | #* Take an amorphous run today | ||
+ | #* Save the shift log summary at the start of the shift and then update and save throughout the shift (helps everyone monitoring remotely to follow what is happening during the shift). | ||
+ | #* Sasha will take a raw data run and run some trigger rate scans sometime this week. | ||
#Analysis update | #Analysis update | ||
Revision as of 09:57, 6 December 2021
Contents
Monday, December 6
- Last 24h:
- Continued C production running. Smooth during day and swing.
- Alarms for TAGM1 and TAGM2 d/c from DAQ [1]. Sergey made an access to tagger hall after unable to remotely recycle the crates. Determined to be a network problem. Problem mysteriously cleared before IT on-call from off-site could arrive [2].
- Issues:
- (urgent) Right Ar tank empty and cylinder needs replacement.
- (urgent) Runs not being transferred fully from Hall D to central computing [3]
- (to do) At next access opportunity, contact IT to replace the switch in the Tagger Hall.
- (not urgent but noted) Hall D techs need access to retrieve CPP equipment in the next week.
- (to do) Coordinate with Chris and techs the changing of C target.
- Plan:
- run on carbon at 150nA
- Rotate the radiators and use both configurations
- Stop the beam ALWAYS before changing the radiator configuration (even with the same radiator). Between radiator change (0/90 <--> 35/145) ALWAYS ask MCC to insert the dumplette.
- Aligning the peak: Use coarse adjustment to align the distributions (red on blue) and then nudge/fine adjust to line up vertical line fit.
- Take an amorphous run today
- Save the shift log summary at the start of the shift and then update and save throughout the shift (helps everyone monitoring remotely to follow what is happening during the shift).
- Sasha will take a raw data run and run some trigger rate scans sometime this week.
- Analysis update
Sunday, December 5
- Last 24h:
- Continued C production running. Pretty smooth running throughout the day and overnight.
- Issues:
- (urgent) Right Ar tank empty and cylinder needs replacement
- (not urgent but noted) Hall D techs need access to retrieve CPP equipment in the next week.
- (to do) Coordinate with Chris and techs the changing of C target.
- Plan:
- run on carbon at 150nA
- Rotate the radiators and use both configurations
- Stop the beam ALWAYS before changing the radiator configuration (even with the same radiator). Between radiator change (0/90 <--> 35/145) ALWAYS ask MCC to insert the dumplette.
- Aligning the peak: Use coarse adjustment to align the distributions (red on blue) and then nudge/fine adjust to line up vertical line fit.
- No Hall D RC meeting over the weekend. I will send updates by e-mail. Meeting with the PD at 9am both days.
Saturday, December 4
- Last 24h:
- Issues:
- (not urgent but noted) Hall D techs need access to retrieve CPP equipment in the next week.
- (to do) Coordinate with Chris and techs the changing of C target.
- Plan:
- run on carbon at 150nA
- Rotate the radiators and use both configurations
- Stop the beam ALWAYS before changing the radiator configuration (even with the same radiator). Between radiator change (0/90 <--> 35/145) ALWAYS ask MCC to insert the dumplette.
- Aligning the peak: Use coarse adjustment to align the distributions (red on blue) and then nudge/fine adjust to line up vertical line fit.
- No Hall D RC meeting over the weekend. I will send updates by e-mail. Meeting with the PD at 9am both days.
Friday, December 3
- Last 24h:
- Tried re-tuning the beam yesterday (reducing MQP5C11). Resulted in lower PS rates (~2.8 kHz) consistent with what was observed previously when we tried this. See: [8],[9]
- After reverting to optics before the change, PS rates back up (~3.3 kHz). See: [10],[11]
- Hovanes performed collimator scan [12]
- Continued C production running overnight.
- Issues:
- FDC HV alarm overnight [13]
- (not urgent but noted) Hall D techs need access to retrieve CPP equipment in the next week.
- Need to coordinate with Chris and techs the changing of C target sometime next week.
- Mark S. heard a strange repetitive banging sound in the Hall yesterday afternoon. By the time he made the access, it was gone.
- Plan:
- run on carbon at 150nA´
- Rotate the radiators and use both configurations
- Stop the beam ALWAYS before changing the radiator configuration (even with the same radiator). Between radiator change (0/90 <--> 35/145) ALWAYS ask MCC to insert the dumplette.
- Aligning the peak: Use coarse adjustment to align the distributions (red on blue) and then nudge/fine adjust to line up vertical line fit.
- No Hall D RC meeting over the weekend. I will send updates by e-mail. Meeting with the PD at 9am both days.
- Analysis update
Thursday, December 2
- Last 24h:
- Established beam last night before midnight.
- Harp scan extrapolation looks to be focused a bit differently than before. PS rates seemed around 3.2kHz as before with 150nA beam so we kept this.
- Radiation levels at 50nA acceptable.
- Continued production on C target at 150nA. Beam not available for most of Early Riser shift so far.
- Issues:
- Plan:
- run on carbon at 150nA´
- Rotate the radiators and use both configurations
- Stop the beam ALWAYS before changing the radiator configuration (even with the same radiator). Between radiator change (0/90 <--> 35/145) ALWAYS ask MCC to insert the dumplette.
- Analysis update