[Alert_collaboration] [Revised Logentry] RC Summary July 22 - July 23 Owl

[hauenst at jlab.org]

Logentry Text:
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<div>This is the RC summary for Day Shift July 22 to Owl shift July 23.</div><div> </div><div>Overall pretty good last 24h of production data.</div><div> </div><div>During Day shift, we did target purge and we had to reboote rich4 roc and cycle ATOF due to trip. There were also some increased RICH humidity alarms which were addressed by Chris (<a href="https://logbooks.jlab.org/entry/4424202">https://logbooks.jlab.org/entry/4424202</a>). He changed alarm limits. Furthermore, we had some beam excursions in the morning (even with orbit locks on) while MCC did HallC arc energy measurement and TAG run for HallD (<a href="https://logbooks.jlab.org/entry/4424167">https://logbooks.jlab.org/entry/4424167</a>). It was better after 11am when all measurements were done.</div><div> </div><div>During Swing shift, couple of ROCs went busy and had to be rebooted (dc42, adcftof2). Furthermore, target purge was done. Also 4 ADHV channels tripped and had to be reset after cleari
 ng LVHV 
 software interlock</div><div> </div><div>During Owl shift, we got minor high target pressure alarms (probably due to changing weather) and the overall pressure was adjusted by ~1psi by ALERT expert. Otherwise rebooted adcecal4 and had to do rich recovery. Since 7am beam studies and maintenance started and we went to controlled access.</div><div> </div><div><span style="text-decoration: underline;">ABU for last 24h</span></div><div> </div><div>- 17.4h of ABUs ~ 72% efficiency,</div><div> </div><div>- Total ABUs since April 5th: 1146+17.4=1163.4  --> 1163.4  / (75.5 * 24) = 64.2% </div><div> </div><div>- Day 109 of 151 scheduled: 109/151= 72.2%</div><div> </div><div>- BANU: 2.3h due to target pressure change, target purge, reboot of ROCs and HV recovery of AHDC</div><div> </div><div><span style="text-decoration: underline;">Plan for today:</span></div><div><ul><li>Target change to He</li><li>Planned work in Hall</li><li
 >BAND tr
 igger and TDC (Florian/Sergey)</li><li>2C24 Vacuum Gauge (Techs)</li><li>TR8121B Torus heater (Denny)</li><li>Rich S4 crio (Brian/Chris)</li><li>ECAL PMT repair (Cole)</li><li>RICH Compressor (Bob/Krister)</li></ul>Beam checkout to taggerMoller runBeam checkout to FC Production on He with 325nA</div><div><strong><span style="text-decoration: underline;">RC meeting:</span></strong></div><div><strong><span style="text-decoration: underline;"><br></span></strong></div><div><p>We will meet as usual today at 11:30 (EST) in CH Room 200C and online via Zoom</p><p>Zoom meeting ID: 160 570 5819</p><p>Zoom Link: <a href="https://jlab-org.zoomgov.com/j/1605705819#success">Link</a></p></div>

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