From pdbforce at jlab.org Sun Jun 1 10:00:02 2025
From: pdbforce at jlab.org (pdbforce at jlab.org)
Date: Sun, 1 Jun 2025 10:00:02 -0400 (EDT)
Subject: [Sbs] [New Logentry] RC Update -- Sunday 06/01/25 [NO Meeting]
Message-ID: <20250601140002.485A2803684@elog9.acc.jlab.org>
Logentry Text:
--
Accelerator and Hall Status
- The last 24 hours were very productive, we collected 1.46 C on LH2!
- Acc. had 93.75% uptime! First time over 90% this year. https://logbooks.jlab.org/entry/4388139
- DAQ was very stable, about 60% more efficient than usual.
- There has been a few instances of GEM layers tripping but each time the issue was resolved very quickly. Many thanks to Asar, the GEM expert on-call!
- In the last few runs (starting from 4273), we've observed fluctuations of approximately 10% in the coin match trigger rate. DAQ experts are aware of the issue and are actively investigating the underlying cause. As all diagnostic plots appear normal across the detectors, data taking is continuing as planned.
Links to Shift Summaries
Sources of Major Downtime in the Hall
| Source |
In the Last 24 hrs |
Since Wednesday May 28 Swing |
| DAQ |
2.2 hrs |
20.2 hrs |
| ECAL AC |
0 hr |
1 hr |
Accumulated Charge on LH2
- Total Accumulated Charge at Kin3 so far: 11.49 C (Goal: 100 C)
- Total Accumulated Charge at Kin3 since Wednesday May 28 Swing: 3.73 C
Run Plan for Today
- Continue taking production data @ 18uA
We will not meet today. Please call the RC phone if you need me. Otherwise, have a great weekend!
---
This is a plain text email for clients that cannot display HTML. The full logentry can be found online at https://logbooks.jlab.org/entry/4388177
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From bogdanw at jlab.org Sun Jun 1 18:17:18 2025
From: bogdanw at jlab.org (Bogdan Wojtsekhowski)
Date: Sun, 1 Jun 2025 22:17:18 +0000
Subject: [Sbs] SBS-(bi)weekly meeting, June 3rd, 11:30am
Message-ID:
Dear all,
Our next SBS-(bi)weekly meeting will be on June 3rd at 11:30 am.
The zoom connection link is:
https://jlab-org.zoomgov.com/j/1611375064?pwd=Ta654o3uaYlHv7onaLWfxbvWQIR68L.1
?
?
?
?
Join our Cloud HD Video Meeting
Zoom is the leader in modern enterprise video communications, with an easy, reliable cloud platform for video and audio conferencing, chat, and webinars across mobile, desktop, and room systems. Zoom Rooms is the original software-based conference room solution used around the world in board, conference, huddle, and training rooms, as well as executive offices and classrooms. Founded in 2011, Zoom helps businesses and organizations bring their teams together in a frictionless environment to get more done. Zoom is a publicly traded company headquartered in San Jose, CA.
jlab-org.zoomgov.com
The agenda for this meeting has the following items:
Provakar - GEp run coordination
????????Andrew - GEP analysis development and current results
Presentation files should be sent to William Tireman.
If you have anything you would like to add to the agenda, please let me know.
Best regards,
Bogdan
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From pdbforce at jlab.org Mon Jun 2 10:30:02 2025
From: pdbforce at jlab.org (pdbforce at jlab.org)
Date: Mon, 2 Jun 2025 10:30:02 -0400 (EDT)
Subject: [Sbs] [New Logentry] RC Update -- Monday 06/02/25 [Meeting at
1:00pm]
Message-ID: <20250602143002.6064F803836@elog9.acc.jlab.org>
Logentry Text:
--
Accelerator and Hall Status
- Another very productive day! Collected 1.33 C on LH2.
- Beam continued to be stable and DAQ had less than usual number of crashes.
- Early day shift, the ECAL AC Unit 1 turned itself off again. Arun and I made a quick escorted access around 11am to reset it. https://logbooks.jlab.org/entry/4388223
- Around the same time, there were some communication issues with a few EPICS PVs related to ECAL and GEMs, which were resolved by rebooting the corresponding IOCs. Thanks to Bill, Arun, Ching Him, Jhih-Ying, and Don. https://logbooks.jlab.org/entry/4388200, https://logbooks.jlab.org/entry/4388273
Links to Shift Summaries
Sources of Major Downtime in the Hall
| Source |
In the Last 24 hrs |
Since Wednesday May 28 Swing |
| DAQ |
3.2 hrs |
23.4 hrs |
| ECAL AC |
0.5 hr |
1.5 hrs |
Accumulated Charge on LH2
- Total Accumulated Charge at Kin3 so far: 12.82 C (Goal: 100 C)
- Total Accumulated Charge at Kin3 since Wednesday May 28 Swing: 5.06 C
Run Plan for Today
- Continue taking production data @ 18uA
Let's meet today at the usual time (1:00 pm) to go over recent and future activities.
Meeting details:
Time: Daily at 1:00pm
Location: Counting house conference room
Join ZoomGov Meeting
https://jlab-org.zoomgov.com/j/1616220064
Meeting ID: 161 622 0064
Passcode: 314159
---
This is a plain text email for clients that cannot display HTML. The full logentry can be found online at https://logbooks.jlab.org/entry/4388862
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From pdbforce at jlab.org Tue Jun 3 10:35:01 2025
From: pdbforce at jlab.org (pdbforce at jlab.org)
Date: Tue, 3 Jun 2025 10:35:01 -0400 (EDT)
Subject: [Sbs] [New Logentry] RC Update -- Tuesday 06/03/25 [Meeting at
1:00pm]
Message-ID: <20250603143501.A6FA080368E@elog9.acc.jlab.org>
Logentry Text:
--
Accelerator and Hall Status
- Most productive day in my RC tenure so far! We raised beam current up to 22 uA collecting 1.47 C on LH2.
- Around noon, a couple of hours after raising the beam current, there was an issue with low 15K flow to the hall. It forced us to reduce the beam current back to 18uA temporarily. But the experts are continuously working to fix the issue making sure no impact in data taking.
- Early swing shift, CH disks filled up due to the increased data rate forcing us to reduce the beam current to 10uA temporarily. Alex resolved it by increasing the frequency of file transfer to MSS (https://logbooks.jlab.org/entry/4389104). Ole was on shift and later he noticed that computer center was not being able to keep up with the transfer. So, he made a temporary update to the MSS file transfer script enforcing asynchronous duplication of the files at tape (https://logbooks.jlab.org/entry/4389298).
- Mid-swing shift SL (Dulitha Jayakodige) noticed missing ECAL VTP channels in a 5k and notified the DAQ experts. Ben identified the issue quickly and provided instructions to resolve it. I have added these instructions to "Fixing the DAQ" section. On Wednesday, Ben will update the readout list to send an error message to the RC GUI with these instructions. https://logbooks.jlab.org/entry/4389163
- Adam Schoene at MCC added a flag to the SBS magnet GUI to indicate the status of the GEM HVs. This flag instructs operators to contact Hall A CH before ramping the SBS magnet up or down if the GEM HVs are ON, in order to avoid unexpected GEM HV trips. Many thanks to Adam and Doug for their help with this. https://logbooks.jlab.org/entry/4389243
- Tomorrow is maintenance day. Beam will be taken away at 6:45 am. RadCon (and techs) will be here at 7:15 am and take the hall to controlled access as soon as possible. Please inform me if you plan to make an access.
Links to Shift Summaries
Sources of Major Downtime in the Hall
| Source |
In the Last 24 hrs |
Since Wednesday May 28 Swing |
| DAQ |
4 hrs |
27.4 hrs |
| ECAL AC |
0.5 hr |
1.5 hrs |
Accumulated Charge on LH2
- Total Accumulated Charge at Kin3 so far: 14.28 C (Goal: 100 C)
- Total Accumulated Charge at Kin3 since Wednesday May 28 Swing: 6.53 C
Run Plan for Today
- Continue taking production data @ 22.5 uA
Let's meet today at the usual time (1:00 pm) to go over recent and future activities.
Meeting details:
Time: Daily at 1:00pm
Location: Counting house conference room
Join ZoomGov Meeting
https://jlab-org.zoomgov.com/j/1616220064
Meeting ID: 161 622 0064
Passcode: 314159
---
This is a plain text email for clients that cannot display HTML. The full logentry can be found online at https://logbooks.jlab.org/entry/4389621
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From bogdanw at jlab.org Tue Jun 3 10:41:29 2025
From: bogdanw at jlab.org (Bogdan Wojtsekhowski)
Date: Tue, 3 Jun 2025 14:41:29 +0000
Subject: [Sbs] Fw: SBS-(bi)weekly meeting, June 3rd, 11:30am
In-Reply-To:
References:
Message-ID:
reminder
________________________________
From: Bogdan Wojtsekhowski
Sent: Sunday, June 1, 2025 6:17 PM
To: sbs at jlab.org
Cc: Andrew Puckett ; pdatta at lbl.gov
Subject: SBS-(bi)weekly meeting, June 3rd, 11:30am
Dear all,
Our next SBS-(bi)weekly meeting will be on June 3rd at 11:30 am.
The zoom connection link is:
https://jlab-org.zoomgov.com/j/1611375064?pwd=Ta654o3uaYlHv7onaLWfxbvWQIR68L.1
?
?
?
?
Join our Cloud HD Video Meeting
Zoom is the leader in modern enterprise video communications, with an easy, reliable cloud platform for video and audio conferencing, chat, and webinars across mobile, desktop, and room systems. Zoom Rooms is the original software-based conference room solution used around the world in board, conference, huddle, and training rooms, as well as executive offices and classrooms. Founded in 2011, Zoom helps businesses and organizations bring their teams together in a frictionless environment to get more done. Zoom is a publicly traded company headquartered in San Jose, CA.
jlab-org.zoomgov.com
The agenda for this meeting has the following items:
Provakar - GEp run coordination
????????Andrew - GEP analysis development and current results
Presentation files should be sent to William Tireman.
If you have anything you would like to add to the agenda, please let me know.
Best regards,
Bogdan
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From pdbforce at jlab.org Wed Jun 4 11:35:01 2025
From: pdbforce at jlab.org (pdbforce at jlab.org)
Date: Wed, 4 Jun 2025 11:35:01 -0400 (EDT)
Subject: [Sbs] [New Logentry] RC Update -- Wednesday 06/04/25 [Short Meeting
at 1:00pm]
Message-ID: <20250604153501.E1DEF803684@elog9.acc.jlab.org>
Logentry Text:
--
Accelerator and Hall Status
- Beam continued to be stable.
- Early day shift we made an effort to raise the beam current and settled at 22.5uA. Unfortunately, around 3:30pm we had to stop data taking temporarily as the CH disks were full! Alex could free up some space quickly allowing us to continue data taking at 18 uA. Then around 6pm the disks were full again! We reduced the beam current to 11uA to keep up. Then around 8pm we raised it to 15uA and stayed there overnight. Ole is working with the computer center to resolve this issue.
- Today is maintenance day. Beam was taken away at 6:45 am. Hall went to controlled access around 8:20am. Currently, experts are working in the hall to troubleshoot pending issues. The beam is expected to be back at 3pm.
Links to Shift Summaries
Sources of Major Downtime in the Hall
| Source |
In the Last 24 hrs |
Since Wednesday May 28 Swing |
| DAQ |
3.5 hrs |
30.6 hrs |
| ECAL AC |
0.5 hr |
1.5 hrs |
Accumulated Charge on LH2
- Total Accumulated Charge at Kin3 so far: 15.53 C (Goal: 100 C)
- Total Accumulated Charge at Kin3 since Wednesday May 28 Swing: 7.90 C
Run Plan for Today
- Restore beam in the hall
- Take production data at @ 22.5 uA. In case the file transfer speed is still an issue then reduce the beam current to accommodate for it.
Let's meet today at the usual time (1:00 pm) to go over recent and future activities.
Meeting details:
Time: Daily at 1:00pm
Location: Counting house conference room
Join ZoomGov Meeting
https://jlab-org.zoomgov.com/j/1616220064
Meeting ID: 161 622 0064
Passcode: 314159
---
This is a plain text email for clients that cannot display HTML. The full logentry can be found online at https://logbooks.jlab.org/entry/4390394
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From arunts at jlab.org Wed Jun 4 23:43:01 2025
From: arunts at jlab.org (Arun Tadepalli)
Date: Thu, 5 Jun 2025 03:43:01 +0000
Subject: [Sbs] GEn-II analysis meeting at 2:00 pm tomorrow
Message-ID: <3BE05C46-9B07-4D5D-ACD3-BD0EAA96F87E@jlab.org>
Hello all,
Let?s have a GEn-II analysis meeting tomorrow, June 5th, at 2:00 pm EST.
Agenda:
1. BBCal and HCal ADC Timing Alignment Update for All of SBS -> Kate Evans
2. E/P cuts -> Hunter Presley
Zoom link:
https://jlab-org.zoomgov.com/s/16077967861
Best,
Arun
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From puckett at jlab.org Thu Jun 5 12:58:15 2025
From: puckett at jlab.org (Andrew Puckett)
Date: Thu, 5 Jun 2025 16:58:15 +0000
Subject: [Sbs] RC meeting reminder
Message-ID:
Hello all,
This is your friendly reminder that we will hold the daily RC meeting today on Zoom and in the counting house 2nd floor conference room.
Zoom meeting info is below:
Join ZoomGov Meeting
https://jlab-org.zoomgov.com/j/1616220064
Meeting ID: 161 622 0064
Passcode: 314159
https://sbs.jlab.org/cgi-bin/DocDB/private/ShowDocument?docid=431
We?ll discuss the last 24 hours running and the plan for the next 24 hours.
Best regards,
Andrew Puckett
Professor, Physics Department
University of Connecticut
196 Auditorium Road, Unit 3046
Storrs, CT 06269-3046
Office phone: (860) 486-7137
https://puckett.physics.uconn.edu
puckett at jlab.org
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From puckett at jlab.org Fri Jun 6 13:01:06 2025
From: puckett at jlab.org (Andrew Puckett)
Date: Fri, 6 Jun 2025 17:01:06 +0000
Subject: [Sbs] GEP RC meeting reminder today, 1 PM
Message-ID:
Hello all,
This is a reminder for our daily experiment meeting starting at the usual time of 1 PM.
I?d send you the link to the website, but my laptop can?t access the wiki page right now. The link can be found at the SBS wiki page.
Meeting is starting.
Best regards,
Andrew
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From jonesdc at jlab.org Mon Jun 9 08:20:08 2025
From: jonesdc at jlab.org (Donald Jones)
Date: Mon, 9 Jun 2025 12:20:08 +0000
Subject: [Sbs] APS talks
Message-ID:
Hi Fellow SBS collaborators,
There were quite a few talks given at the last APS meeting but only a couple of them ended up on the docDB. Please add your talks for the APS and any others your might have given to the SBS docDB at your earliest convenience https://sbs.jlab.org/cgi-bin/DocDB/private/DocumentDatabase. Thank you!
-Don
Donald Jones
Hall A/C Staff Scientist
Jefferson Lab
Newport News, VA
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From puckett at jlab.org Mon Jun 9 12:33:02 2025
From: puckett at jlab.org (Andrew Puckett)
Date: Mon, 9 Jun 2025 16:33:02 +0000
Subject: [Sbs] Hall A RC update and meeting reminder, June 9, 2025
Message-ID:
Hello all,
Hall A continued with relatively smooth production running at 15 uA over the weekend. Overall running efficiency was slightly below the recent norm but still above 50%. Major reasons for significant downtime were accelerator and/or DAQ-related.
For more details, see the RC update and run plan for June 9 at the wiki page here:
https://sbs.jlab.org/wiki/index.php/RC_meeting_and_Run_Plan,_Monday,_June_9th
We will have our daily RC meeting on Zoom (link at the wiki page linked above) and in person in the conference room on the 2nd floor of the counting house, at the usual time of 1:00 PM.
Best regards,
Andrew
Andrew Puckett
Professor, Physics Department
University of Connecticut
196 Auditorium Road, Unit 3046
Storrs, CT 06269-3046
Office phone: (860) 486-7137
https://puckett.physics.uconn.edu
puckett at jlab.org
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From puckett at jlab.org Tue Jun 10 12:52:34 2025
From: puckett at jlab.org (Andrew Puckett)
Date: Tue, 10 Jun 2025 16:52:34 +0000
Subject: [Sbs] RC daily update and meeting reminder, June 10, 2025
Message-ID:
Hello all,
Hall A running was relatively smooth over the last 24 hours (particularly during day and swing shifts). We are now up to 4.2 C collected since the start of my RC tenure on June 4 and 19.8 C in total.
Two significant changes to running conditions occurred since yesterday?s meeting:
1. HCAL trigger threshold was lowered to 20% of elastic kinetic energy due to concerns over energy calibration/threshold uncertainty/trigger efficiency
2. ECAL trigger threshold was increase to 65% of elastic, which should have a minimal impact on the trigger efficiency while significantly reducing the rate.
As the big full replays with tracking started on Sunday evening start to pour in, new concerns have developed over GEM HV settings/gain/tracking efficiency. We are temporarily running at the relatively calmer beam current of 7 uA until we can systematically determine what are the optimal HV settings at which to run the experiment.
Let?s meet on Zoom and in person at the CH 2nd floor conference room to discuss the run plan and the plans for tomorrow?s accelerator down.
For more details and Zoom link info, see the RC daily meeting page at the wiki here: https://sbs.jlab.org/wiki/index.php/RC_meeting_and_Run_Plan,_Tuesday,_June_10th
Best regards,
Andrew
Andrew Puckett
Professor, Physics Department
University of Connecticut
196 Auditorium Road, Unit 3046
Storrs, CT 06269-3046
Office phone: (860) 486-7137
https://puckett.physics.uconn.edu
puckett at jlab.org
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From puckett at jlab.org Wed Jun 11 12:48:50 2025
From: puckett at jlab.org (Andrew Puckett)
Date: Wed, 11 Jun 2025 16:48:50 +0000
Subject: [Sbs] Hall A RC daily update and meeting reminder, June 11, 2025
Message-ID:
Hello all,
This is a reminder for our daily RC meeting on Zoom and in the 2nd floor CH conference room at the usual time of 1 PM. Over the last 24 hours, we completed the 7 uA runs for the GEM HV studies and then resumed production at 15 uA during owl. Unfortunately DAQ issues developed during owl that kept Hall A down from around 4:30 until MCC took the beam away for their planned downtime.
Hall is in controlled access during the down, and DAQ experts are in the hall fixing the ROC23 issue.
For more details and Zoom info, see here: https://sbs.jlab.org/wiki/index.php/RC_meeting_and_Run_Plan,_Wednesday,_June_11th
Best regards,
Andrew
Andrew Puckett
Professor, Physics Department
University of Connecticut
196 Auditorium Road, Unit 3046
Storrs, CT 06269-3046
Office phone: (860) 486-7137
https://puckett.physics.uconn.edu
puckett at jlab.org
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From arunts at jlab.org Thu Jun 12 00:19:57 2025
From: arunts at jlab.org (Arun Tadepalli)
Date: Thu, 12 Jun 2025 04:19:57 +0000
Subject: [Sbs] GEn-II analysis meeting at 2:00 pm
Message-ID:
Hello all,
Let?s have a GEn-II analysis meeting today, June 12th, at 2:00 pm EST.
Agenda:
1. Secondary clusters in HCAL -> Vimukthi Gamage
Zoom link:
https://jlab-org.zoomgov.com/s/16077967861
Best,
Arun
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From gdc4k at virginia.edu Thu Jun 12 11:04:35 2025
From: gdc4k at virginia.edu (Cates, Gordon D (gdc4k))
Date: Thu, 12 Jun 2025 15:04:35 +0000
Subject: [Sbs] [EXTERNAL] Re: GEn-II analysis meeting at 2:00 pm
In-Reply-To:
References:
Message-ID: <5D8E03A8-3111-4F9C-9ED5-EE657ABB6634@virginia.edu>
Hi Arun,
If there is time, we should also hear from Hunter. He has brought
some genuinely new directions into the analysis that appear quite
promising.
Best regards,
Gordon
> On Jun 12, 2025, at 12:19 AM, Arun Tadepalli via Sbs wrote:
>
> Hello all,
>
> Let?s have a GEn-II analysis meeting today, June 12th, at 2:00 pm EST.
>
> Agenda:
> Secondary clusters in HCAL -> Vimukthi Gamage
> Zoom link:
> https://jlab-org.zoomgov.com/s/16077967861
>
> Best,
>
> Arun
> _______________________________________________
> Sbs mailing list
> Sbs at jlab.org
> https://mailman.jlab.org/mailman/listinfo/sbs
_____________________________________________________________
Gordon D. Cates, Jr. Department of Physics
Jesse W. Beams Professor of Physics University of Virginia
Professor of Radiology and Medical Imaging P.O. Box 400714
Phone: (434) 924-4792 382 McCormick Rd.
email: cates at virginia.edu Charlottesville, VA, 22904
_____________________________________________________________
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From bogdanw at jlab.org Sun Jun 15 19:00:54 2025
From: bogdanw at jlab.org (Bogdan Wojtsekhowski)
Date: Sun, 15 Jun 2025 23:00:54 +0000
Subject: [Sbs] SBS-biweekly, July 1st, 11:30am
Message-ID:
Dear all,
Due to the A&C collaboration meeting on June 17-18 we will skip this week.
Our next SBS-(bi)weekly meeting will be on July 1st at 11:30 am.
The zoom connection link is:
https://jlab-org.zoomgov.com/j/1611375064?pwd=Ta654o3uaYlHv7onaLWfxbvWQIR68L.1
?
Join our Cloud HD Video Meeting
Zoom is the leader in modern enterprise video communications, with an easy, reliable cloud platform for video and audio conferencing, chat, and webinars across mobile, desktop, and room systems. Zoom Rooms is the original software-based conference room solution used around the world in board, conference, huddle, and training rooms, as well as executive offices and classrooms. Founded in 2011, Zoom helps businesses and organizations bring their teams together in a frictionless environment to get more done. Zoom is a publicly traded company headquartered in San Jose, CA.
jlab-org.zoomgov.com
The agenda for this meeting has the following items:
Evaristo - GEp run coordination
????????Rachel - Pi-0 photo-production in GEP data
Presentation files should be sent to William Tireman.
If you have anything you would like to add to the agenda, please let me know.
Best regards,
Bogdan
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From epfuchey at wm.edu Tue Jun 17 12:39:27 2025
From: epfuchey at wm.edu (Fuchey, Eric)
Date: Tue, 17 Jun 2025 16:39:27 +0000
Subject: [Sbs] [EXTERNAL] Slides for tomorrow
Message-ID:
Dear all,
please find attached my slides on the GMn/nTPE analysis update for the Hall A/C meeting tomorrow. Please let me know if you have any comments.
Best regards,
Eric
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From efuchey at jlab.org Tue Jun 17 20:50:46 2025
From: efuchey at jlab.org (efuchey)
Date: Tue, 17 Jun 2025 20:50:46 -0400
Subject: [Sbs] Fwd: [EXTERNAL] Slides for tomorrow
In-Reply-To:
References:
Message-ID:
Dear all,
Please find attached my slides on the GMn/nTPE analysis update for the
Hall A/C meeting tomorrow afternoon. Please let me know if you have any
comments.
Best regards,
Eric
Apologies, I tried to send those slides earlier today but realized they
had actually not been sent.
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From vimukthi at jlab.org Wed Jun 18 08:51:27 2025
From: vimukthi at jlab.org (Vimukthi Gamage)
Date: Wed, 18 Jun 2025 08:51:27 -0400
Subject: [Sbs] GEn-II analysis update slides for Hall A/C collaboration
meeting
Message-ID: <5e399d58-82a0-48b7-bb7a-b4c8b051db94@jlab.org>
Dear all,
Slides for the talk on GEn-II analysis update is uploaded to Docdb,
https://sbs.jlab.org/cgi-bin/DocDB/private/ShowDocument?docid=698 .
Please let me know if there are any comments.
Apologies for sending it out late.
Please Ignore multiple postings.
Thank you
Kind Regards
Vimukthi
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From vph7xu at virginia.edu Wed Jun 18 08:15:01 2025
From: vph7xu at virginia.edu (Vimukthi Haththotuwa Gamage)
Date: Wed, 18 Jun 2025 08:15:01 -0400
Subject: [Sbs] [EXTERNAL] GEn-II analysis update slides for Hall A/C
collaboration meeting
Message-ID:
Dear all,
I have attached the slides for the talk on GEn-II analysis update. Please
let me know if there are any comments.
Apologies for sending it out late.
Thank you
Kind Regards
Vimukthi
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From vimukthi at jlab.org Wed Jun 18 08:27:55 2025
From: vimukthi at jlab.org (Vimukthi Gamage)
Date: Wed, 18 Jun 2025 08:27:55 -0400
Subject: [Sbs] GEn-II analysis update slides for Hall A/C collaboration
meeting
Message-ID: <518681a6-a039-41fc-8684-2434093ef5cf@jlab.org>
Dear all,
I have attached the slides for the talk on GEn-II analysis update.
Please let me know if there are any comments.
Apologies for sending it out late.
Thank you
Kind Regards
Vimukthi
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From covrig at jlab.org Thu Jun 19 11:55:02 2025
From: covrig at jlab.org (covrig at jlab.org)
Date: Thu, 19 Jun 2025 11:55:02 -0400 (EDT)
Subject: [Sbs] [New Logentry] RC report for 19-Jun-2025
Message-ID: <20250619155502.0AB86803BC3@elog9.acc.jlab.org>
Logentry Text:
--
Due to the holiday there will not be a daily 1pm RC meeting today. If you have any issues or concerns regarding the run plan, please call the RC phone.
Key updates for the last 24 h:
Beam back from beam studies around 12:50 yesterday, cross check, beam raster and positions checked fine, went to production
Machine was down for about 2h, during Swing, due to 2 cavities dropping out of HV (2L18 and 1L06, 2L18 was bypassed)
8h run-plan with HCAL threshold at 10% and ECAL at 70%, beam current 15 ?A completed Swing-Owl
GEM baseline studies during Swing, baseline adjusted from 400-500 ADC ch to 800-900 ADC ch, summary in https://logbook.jlab.org/entry/44090882
Since run 4770, 6:30am today, we are running at 22 ?A beam current with HCAL at 20% and ECAL at 70% and new GEM baseline, the plan is to stay here until further notice
Total Accumulated Charge at Kin3 so far: 25.82 C (Goal: 100 C)
Total Accumulated Charge at Kin3 since June 18 Swing: 0.9 C
Run plan: Production on 30 cm LH2 cell at 22 uA with the current settings for GEMs, ECAL and HCAL
Shift summaries:
18-Jun-2025 D https://logbooks.jlab.org/entry/4400380
18-Jun-2025 S https://logbooks.jlab.org/entry/4400629
19-Jun-2025 O https://logbooks.jlab.org/entry/4400873
Shift BTA:
18-Jun-2025 D https://logbooks.jlab.org/entry/4400609
18-Jun-2025 S https://logbooks.jlab.org/entry/4400869
19-Jun-2025 O https://logbooks.jlab.org/entry/4401133
Kind Regards,
Silviu
RC phone 757-876-1787
---
This is a plain text email for clients that cannot display HTML. The full logentry can be found online at https://logbooks.jlab.org/entry/4401218
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From covrig at jlab.org Thu Jun 19 12:15:02 2025
From: covrig at jlab.org (covrig at jlab.org)
Date: Thu, 19 Jun 2025 12:15:02 -0400 (EDT)
Subject: [Sbs] [Revised Logentry] RC report for 19-Jun-2025
Message-ID: <20250619161502.60D22803701@elog9.acc.jlab.org>
Logentry Text:
--
Due to the holiday there will not be a daily 1pm RC meeting today. If you have any issues or concerns regarding the run plan, please call the RC phone.
Key updates for the last 24 h:
Beam back from beam studies around 12:50 yesterday, cross check, beam raster and positions checked fine, went to production
Machine was down for about 2h, during Swing, due to 2 cavities dropping out of HV (2L18 and 1L06, 2L18 was bypassed)
8h run-plan with HCAL threshold at 10% and ECAL at 70%, beam current 15 ?A completed Swing-Owl
GEM baseline studies during Swing, baseline adjusted from 400-500 ADC ch to 800-900 ADC ch, summary in https://logbook.jlab.org/entry/44090882
Since run 4770, 6:30am today, we are running at 22 ?A beam current with HCAL at 20% and ECAL at 70% and new GEM baseline, the plan is to stay here until further notice
Total Accumulated Charge at Kin3 so far: 25.82 C (Goal: 100 C)
Total Accumulated Charge at Kin3 since June 18 Swing: 0.9 C
Run plan: Production on 30 cm LH2 cell at 22 uA with the current settings for GEMs, ECAL and HCAL (unless experts tinker with them).
Shift summaries:
18-Jun-2025 D https://logbooks.jlab.org/entry/4400380
18-Jun-2025 S https://logbooks.jlab.org/entry/4400629
19-Jun-2025 O https://logbooks.jlab.org/entry/4400873
Shift BTA:
18-Jun-2025 D https://logbooks.jlab.org/entry/4400609
18-Jun-2025 S https://logbooks.jlab.org/entry/4400869
19-Jun-2025 O https://logbooks.jlab.org/entry/4401133
Kind Regards,
Silviu
RC phone 757-876-1787
---
This is a plain text email for clients that cannot display HTML. The full logentry can be found online at https://logbooks.jlab.org/entry/4401218
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From arunts at jlab.org Thu Jun 19 12:43:55 2025
From: arunts at jlab.org (Arun Tadepalli)
Date: Thu, 19 Jun 2025 16:43:55 +0000
Subject: [Sbs] No GEn-II analysis meeting today
Message-ID: <8F591571-F037-40AE-9D41-8530D32AC157@jlab.org>
Hello all,
Given that today is a holiday and its right after the Hall A/C collaboration meeting, there is no analysis meeting this afternoon. You can find the analysis status talk given by Vimukthi at the Hall A/C collaboration meeting here:
https://indico.jlab.org/event/944/contributions/16769/attachments/12859/20618/HallAC_Collab_June18_2025_v6.pdf
See you next week!
Best,
Arun
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From tireman at jlab.org Fri Jun 20 09:39:48 2025
From: tireman at jlab.org (tireman)
Date: Fri, 20 Jun 2025 09:39:48 -0400
Subject: [Sbs] Hall A Shift Schedule reminders and extension
Message-ID:
Good day all:
(1) I would like to remind everyone to check the shift schedule to
confirm their sign up dates. If you have a conflict, use the "Trade
Request" option if it is more than a week away. Contact the RC on duty
if it is less than a week. The earlier we know the faster we can find
replacements.
(2) The GEp-V run for Hall A has been extended to August 25th. The
additional days have been added to the schedule and open for sign up.
Also, scan the schedule for Trade Requested shifts and see if you can
fit those in your schedule.
(3) Make sure you have an active visitor approval on file with JLab. It
takes time to get those approved. Go to the User Liaison website for
more details.
(4) Check your training as well. If you haven't been to Jlab recently,
perhaps something is about to expire and you forgot about it. Easy
enough to forget expiration dates so check now to verify your plans.
Sincerely,
Will Tireman
From covrig at jlab.org Fri Jun 20 09:55:02 2025
From: covrig at jlab.org (covrig at jlab.org)
Date: Fri, 20 Jun 2025 09:55:02 -0400 (EDT)
Subject: [Sbs] [New Logentry] RC Report for 20-Jun-2025
Message-ID: <20250620135502.EBF90803BE3@elog9.acc.jlab.org>
Logentry Text:
--
Key updates for the last 24h:
- Beam delivery has been excellent, average trip rate 7/h over the past 24h (as reported at the 8am MCC meeting)
- MCC to decide if they will attempt to repair 2L18 today, before the weekend. The issue: there is no head room for the SL. If any other cavity goes down in SL there may be significant down time for repairs.
- Riad announced that the current laser spot is getting to the tail end of its lifetime and a spot move is planned over the next 7-10 days. Should we consider a Moller measurement before the spot move?
- HCAL threshold changed to 15%, per Mark's recommendation, running at this setting since about 11am 19-Jun-25.
- As for the previous 24h, during this period too most of the experimental down time was caused by DAQ crashes. If I count from BTAs we lost 6-7h of beam time over the past 24h due to DAQ! Can something be done about it?
- Total Accumulated Charge at Kin3 so far: 26.8 C (Goal: 100 C)
- Total Accumulated Charge at Kin3 since June 18 Swing: 1.8 C
Run plan: Production on the 30 cm LH2 target cell (loop 1) at 22 ?A, with the current settings for GEMs, ECAL and HCAL (unless subsystem experts want to change them).
Shift summaries:
19-Jun-2025 D https://logbooks.jlab.org/entry/4401145
19-Jun-2025 S https://logbooks.jlab.org/entry/4401359
20-Jun-2025 O https://logbooks.jlab.org/entry/4401558
Shift BTA:
19-Jun-2025 D https://logbooks.jlab.org/entry/4401507
19-Jun-2025 S https://logbooks.jlab.org/entry/4401551
20-Jun-2025 O https://logbooks.jlab.org/entry/4401818
RC Daily Meetings1:00 PM , via Zoom and in person in the counting house meeting room (2nd floor).
No meeting planned for the weekend, unless something important comes up.
Zoom info:
Join ZoomGov Meeting
https://jlab-org.zoomgov.com/j/1616220064
Meeting ID: 161 622 0064
Passcode: 314159
---
This is a plain text email for clients that cannot display HTML. The full logentry can be found online at https://logbooks.jlab.org/entry/4401888
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