<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><span style="font-size: 14px;">Dear Colleagues, </span><div><span style="font-size: 14px;"><br></span></div><div><span style="font-size: 14px;">We will NOT have the RC meeting today.</span></div><div><span style="font-size: 14px;"><br></span></div><div><span style="font-size: 14px;"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">This is the RC Summary of the last 24 hours starting from the day shift of Sun. May 25th, 2025 </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">============================= Daily RC Meeting Info =============================</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">Time: 11:30 AM EDT </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">Location: CH Room 200C and online via ZOOM </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">ZOOM URL </span><a href="https://jlab-org.zoomgov.com/j/1605705819#success">link</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"> (including passcode) </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">ZOOM meeting ID: 160 570 5819 </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">============================= May 25th </span><a href="https://logbooks.jlab.org/entry/4383185">Day Shift</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"> ===============================</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">We continued taking data and increased the beam current to 325 nA. </span><a href="https://logbooks.jlab.org/entry/4383288">MCC worked on the Hall B halo</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">. MCC also worked on the path length, removing the beam for 20 minutes.</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">Issue: RICH alarm occurred with full recovery. Performed roc_reboot on dc11, dc12, dc13.</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">============================= May 25th </span><a href="https://logbooks.jlab.org/entry/4383457">Swing Shift</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"> ===============================</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">We continued taking data at 325 nA on ⁴He. The TrigBit 1-6 alarm is a recurrent issue. Later in the owl shift, </span><a href="https://logbooks.jlab.org/entry/4383746">Rafo fixed it by changing the trigger file</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"> 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: </span><a href="https://logbooks.jlab.org/entry/4383939">https://logbooks.jlab.org/entry/4383939</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">. </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">The DC experts (Florian and Morgan) have checked the DC but haven't found any issues in sector 1.</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">============================= May 26th </span><a href="https://logbooks.jlab.org/entry/4383679">Owl Shift</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"> ===============================</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">We continued taking data at 325 nA on ⁴He. Felix purged the target. </span><a href="https://logbooks.jlab.org/entry/4383733">The AHDC occupancy plot has some holes</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">. Raphael thinks this comes from a dead connector in the DREAM chips.</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">=========================== Game Plan ===========================</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">- Taking production data at 325nA on 4He at 10.67GeV.</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">============================= BTA =============================</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">- ABU: 360.21 hours since Apr. 5th → 360.21 / (68.5 × 24) = 21.9%</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">- Day 50 of 137 scheduled: 50 / 137 = 36.5 %</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">- BANU: 5.5h from 7 AM May 21 to May 25</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">======================== Outstanding Major Tasks ========================</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">- Trigger alarm DC S1-6 is to be investigated. </span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">- Faraday Cup vacuum remains elevated — to be addressed after run ends</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">============================= Run Summary =============================</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21851 | 300 nA | 100M events | production</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21852 | 300 nA | 15M events | ended, AHDC issue</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21853 | 325 nA | 3M events | ended, same AHDC issue</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21854 | 325 nA | 7k events | production, ended, adcecal3 busy</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21855 | 325 nA | 98M events | production</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21856 | 325 nA | 16M events | production, ended, dc22 busy</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21857 | 325 nA | 45M events | production, ended, trigger alarm sector 1</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21858 | 325 nA | 100M events | production</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21859 | 325 nA | 23M events | production</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21860 | 325 nA | 22M events | production</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21861 | 325 nA | 16M events | production</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21862 | 325 nA | 56M events | production</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21864 | 325 nA | 28M events | production</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21865 | 325 nA | 100M events | production</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21867 | 325 nA | 4M events | production</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21868 | 325 nA | 11M events | production</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21869 | 325 nA | 25M events | production</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21871 | 325 nA | 100M events | production</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21872 | 325 nA | 20M events | production</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">21874 | 325 nA | 95M events | production</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">Total number of events: 877M</span></span></div></body></html>