[clas_members] No RC meeting today - RC Summary for May 25 - 26th

[Mathieu Ouillon]

Dear Colleagues, 

We will NOT have the RC meeting today.

This is the RC Summary of the last 24 hours starting from the day shift of Sun. May 25th, 2025 

============================= Daily RC Meeting Info =============================
Time: 11:30 AM EDT 
Location: CH Room 200C and online via ZOOM 
ZOOM URL link <https://jlab-org.zoomgov.com/j/1605705819#success> (including passcode) 
ZOOM meeting ID: 160 570 5819 

============================= May 25th Day Shift <https://logbooks.jlab.org/entry/4383185> ===============================
We continued taking data and increased the beam current to 325 nA. MCC worked on the Hall B halo <https://logbooks.jlab.org/entry/4383288>. MCC also worked on the path length, removing the beam for 20 minutes.
Issue: RICH alarm occurred with full recovery. Performed roc_reboot on dc11, dc12, dc13.

============================= May 25th Swing Shift <https://logbooks.jlab.org/entry/4383457> ===============================
We continued taking data at 325 nA on ⁴He. The TrigBit 1-6 alarm is a recurrent issue. Later in the owl shift, Rafo fixed it by changing the trigger file <https://logbooks.jlab.org/entry/4383746> to rgl_inb_v4.2_200MeV_Sec1NoDC.trg. This is a temporary solution. We are using trig bit 8 (No_DC_S1) as the trigger. Look also the the entry made by Valery: https://logbooks.jlab.org/entry/4383939. 
The DC experts (Florian and Morgan) have checked the DC but haven't found any issues in sector 1.

============================= May 26th Owl Shift <https://logbooks.jlab.org/entry/4383679> ===============================
We continued taking data at 325 nA on ⁴He. Felix purged the target. The AHDC occupancy plot has some holes <https://logbooks.jlab.org/entry/4383733>. Raphael thinks this comes from a dead connector in the DREAM chips.

=========================== Game Plan ===========================
- Taking production data at 325nA on 4He at 10.67GeV.

============================= BTA =============================
- ABU: 360.21 hours since Apr. 5th → 360.21 / (68.5 × 24) = 21.9%
- Day 50 of 137 scheduled: 50 / 137 = 36.5 %
- BANU: 5.5h from 7 AM May 21 to May 25

======================== Outstanding Major Tasks ========================
- Trigger alarm DC S1-6 is to be investigated. 
- Faraday Cup vacuum remains elevated — to be addressed after run ends

============================= Run Summary =============================
21851 | 300 nA | 100M events | production
21852 | 300 nA | 15M events | ended, AHDC issue
21853 | 325 nA | 3M events | ended, same AHDC issue
21854 | 325 nA | 7k events | production, ended, adcecal3 busy
21855 | 325 nA | 98M events | production
21856 | 325 nA | 16M events | production, ended, dc22 busy
21857 | 325 nA | 45M events | production, ended, trigger alarm sector 1
21858 | 325 nA | 100M events | production
21859 | 325 nA | 23M events | production
21860 | 325 nA | 22M events | production
21861 | 325 nA | 16M events | production
21862 | 325 nA | 56M events | production
21864 | 325 nA | 28M events | production
21865 | 325 nA | 100M events | production
21867 | 325 nA | 4M events | production
21868 | 325 nA | 11M events | production
21869 | 325 nA | 25M events | production
21871 | 325 nA | 100M events | production
21872 | 325 nA | 20M events | production
21874 | 325 nA | 95M events | production
Total number of events: 877M
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