Difference between revisions of "Run Planning Meeting Notes, July 07 - July 14, 2022"
From GlueXWiki
(→Past 72 hours) |
(→Past 72 hours) |
||
Line 16: | Line 16: | ||
* 6B events on lead have been collected | * 6B events on lead have been collected | ||
* DAQ livetime looks much better after switching to writing data in two files simultaneously | * DAQ livetime looks much better after switching to writing data in two files simultaneously | ||
− | * Friday harp scan [https://logbooks.jlab.org/entry/4012897] [https://logbooks.jlab.org/entry/4012901] [https://gryphn.phys.uconn.edu/halld/cobrems/harptool_2d.cgi?harp5C11_xsigma=1.293&harp5C11_xsigma_err=0.03&harp5C11_usigma=0.997&harp5C11_usigma_err=0.03&harp5C11_ysigma=1.015&harp5C11_ysigma_err=0.03&harp5C11B_xsigma=1.076&harp5C11B_xsigma_err=0.05&harp5C11B_usigma=0.8206&harp5C11B_usigma_err=0.05&harp5C11B_ysigma=0.931&harp5C11B_ysigma_err=0.15&radHarp_xsigma=1.039&radHarp_xsigma_err=0.02&radHarp_usigma=1.087&radHarp_usigma_err=0.02&radHarp_ysigma=0.8327&radHarp_ysigma_err=0.02&harp5C11_spos=102.97&harp5C11B_spos=115.11&emittance_x=0.0041&radHarp_spos=119.7&emittance_y=0.00233&collimator_spos=194.92&fit=fit+and+plot extrapolation] | + | * Friday evening harp scan [https://logbooks.jlab.org/entry/4012897] [https://logbooks.jlab.org/entry/4012901] [https://gryphn.phys.uconn.edu/halld/cobrems/harptool_2d.cgi?harp5C11_xsigma=1.293&harp5C11_xsigma_err=0.03&harp5C11_usigma=0.997&harp5C11_usigma_err=0.03&harp5C11_ysigma=1.015&harp5C11_ysigma_err=0.03&harp5C11B_xsigma=1.076&harp5C11B_xsigma_err=0.05&harp5C11B_usigma=0.8206&harp5C11B_usigma_err=0.05&harp5C11B_ysigma=0.931&harp5C11B_ysigma_err=0.15&radHarp_xsigma=1.039&radHarp_xsigma_err=0.02&radHarp_usigma=1.087&radHarp_usigma_err=0.02&radHarp_ysigma=0.8327&radHarp_ysigma_err=0.02&harp5C11_spos=102.97&harp5C11B_spos=115.11&emittance_x=0.0041&radHarp_spos=119.7&emittance_y=0.00233&collimator_spos=194.92&fit=fit+and+plot extrapolation] |
+ | * Sunday morning harp scan [https://logbooks.jlab.org/entry/4013474 5C11] [https://logbooks.jlab.org/entry/4013475 5C11B] [https://logbooks.jlab.org/entry/4013479] [https://gryphn.phys.uconn.edu/halld/cobrems/harptool_2d.cgi?harp5C11_xsigma=1.51&harp5C11_xsigma_err=0.03&harp5C11_usigma=1.04&harp5C11_usigma_err=0.03&harp5C11_ysigma=1.181&harp5C11_ysigma_err=0.03&harp5C11B_xsigma=1.165&harp5C11B_xsigma_err=0.05&harp5C11B_usigma=0.8986&harp5C11B_usigma_err=0.05&harp5C11B_ysigma=1.028&harp5C11B_ysigma_err=0.15&radHarp_xsigma=1.141&radHarp_xsigma_err=0.02&radHarp_usigma=1.171&radHarp_usigma_err=0.02&radHarp_ysigma=0.8437&radHarp_ysigma_err=0.02&harp5C11_spos=102.97&harp5C11B_spos=115.11&emittance_x=0.0041&radHarp_spos=119.7&emittance_y=0.00233&collimator_spos=194.92&fit=fit+and+plot extrapolation] | ||
* Hall-D bpms | * Hall-D bpms | ||
− | ** Friday [https://logbooks.jlab.org/entry/4013160 Beni | + | ** Friday [https://logbooks.jlab.org/entry/4013160 Beni |
** Saturday [https://logbooks.jlab.org/entry/4013403 Simon] | ** Saturday [https://logbooks.jlab.org/entry/4013403 Simon] | ||
Revision as of 23:37, 10 July 2022
Back to Run Coordination Meetings:Summer2022
Meeting are via ZoomGov: connect (Meeting ID: 160 199 0060 / Passcode 8394)
Hall D counting room white board
Contents
Friday July 8 - Sunday July 10
Past 72 hours
- 6B events on lead have been collected
- DAQ livetime looks much better after switching to writing data in two files simultaneously
- Friday evening harp scan [1] [2] extrapolation
- Sunday morning harp scan 5C11 5C11B [3] extrapolation
- Hall-D bpms
- Friday [https://logbooks.jlab.org/entry/4013160 Beni
- Saturday Simon
Shift reports
Reports
Issues
- Tagger NMR communication will be worked out this week (Tim) [6]
Plans
- Continue production on lead
- unmask FCAL modules in the trigger
Thursday July 7
Past 24 hours
- harp scans were done during short beam on period during day-time, some distributions show 1/100 peak/shoulders ratio others 1/10,000 [7] [8]
- Dominion Power's work required a voltage reduction so we had tagger, PS and sweep magnets off for a couple of hours
- collected cosmics and LED runs during daytime, and production on lead (about 8 hrs) during night time
- Beni: beam was quite stable overnight [9]
Shift reports
Reports
- Sasha checked FCAL trigger rate without masking inner layers. Preliminary result for the rate was 14kHz [10]
- Hovanes pointed out, that we don't observe 60Hz oscillations now [11]
Issues
- Problems with running at 30nA on AMO, radiator thickness was reduced to 3*10^-4 this night,
as 4.5*10^-4 was causing IOC trips [12] [13]
- Alexandre just noticed that Tagger magnet NMR communication is down again [14]
- DIRC major alarm has been acknowledged [15], Mark may need to investigate this issue more
- Dave has noticed we have a higher radiation level values now, about factor of 1.5 [16], [17]
- Hydra alarm on fa125_itrig [18]
- daq livetime is uneven from time to time [19]
Plans
- Continue production on lead
- find out the way to unmask FCAL modules
Wednesday, July 6
Past 24 hours
- Malte and Mark worked on FCAL bases replacement [20]
- One of the RF crates had been disconnected, Beni fixed it [21]
- Bobby and others worked in the tagger hall during the day. At 3:30 pm Bobby noticed that the IOC for the NMR was not responding properly. MCC rebooted the IOC crate. Afterward, it was still locked on zero and there was still a Comm Status error [22]
- Beni found that the solenoid controls hung, and restarted the ramping, which was helpful.
- Had minor issues with DAQ at 7.00 pm: ROCFDC11 error: timeout error on FA125, every 3 seconds. (fADC125 in fdc11 slot 3 was replaced during daytime [23]) Sergei worked out the DAQ issue at 7.50 pm
- Established operating field of the solenoid at 8:30 pm.
- harp scans are ongoing now
Shift reports
Reports
- Sergey and Lubomir worked in the Hall this night from 10 pm to 11:30 pm [24]
- Hovanes reported his study of the coherent peak position drifts observed on the 4th of July [25]
- Still have 60Hz structure [26]. The situation is improved according to MCC experts.
- CDC HV and TAGM alarms are more frequent now
- CDC gas flow increased [27]
Issues
Plans
- Continue production on lead
- Unmasking FCAL central modules from the trigger needs to be done unless it increases rate too high