[Sbs] [New Logentry] RC Daily Report Dec 11th, 2022

Sun Dec 11 11:20:02 EST 2022

Logentry Text:
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<h1><strong><span style="color: red;">(NO SUNDAY MEETING)</span></strong> RC Meeting Information</h1><p>Since there were no major events and no one asked for a meeting there will be no Sunday RC Meeting. Summary from Saturday SWING until now given below.</p><h1><span id="Shift_Schedule" class="mw-headline">Shift Schedule</span></h1><p><a class="external text" href="https://misportal.jlab.org/mis/physics/shiftSchedule/?experimentRunId=SBS-GEn-2022" rel="nofollow">Link to Schedule</a></p><h4><span id="Until_Shutdown" class="mw-headline">Until Shutdown</span></h4><p>All shifts are full! :) Thank you.</p><h1><span id="Accelerator_Status" class="mw-headline">Accelerator Status</span></h1><ul><li>Accelerator was down at the end of OWL for about seventy minutes (75) at the end of OWL. [DT Event ID: 17471]</li><li>Accelerator was down at the end of SWING beginning of OWL for a total of two (2) hours. [DT Event ID: 17452]</li><li>Hall C valve/vacuum repair is complete; they're c!
 oming back online Tuesday; they will be priority hall next week.</li></ul><h1><span id="Current_Status" class="mw-headline">Experiment Status</span></h1><p>Taking production data on 3-He. No major problems.</p><h4><span id="Shift_Summaries" class="mw-headline">Shift Summaries</span></h4><ul><li><a class="external text" href="https://logbooks.jlab.org/entry/4099546" rel="nofollow">SUNDAY DAY SHIFT SUMMARY (Ongoing)</a></li><li><a class="external text" href="https://logbooks.jlab.org/entry/4099796" rel="nofollow">SUNDAY OWL SHIFT SUMMARY</a></li><li><a class="external text" href="https://logbooks.jlab.org/entry/4099657" rel="nofollow">SATURDAY SWING SHIFT SUMMARY</a></li></ul><h4><span id="Things_That_Happened" class="mw-headline">Things That Happened</span></h4><ul><li>HH Hodoscope voltages dropped. Shift leader notified me around 5:30am. Resolved over phone. <a class="external text" href="https://logbooks.jlab.org/entry/4099867" rel="nofollow">[4099867</a>]</li><li>Scalar h!
 elicity graph from run 3191 showed all zeros. <a class="extern!
 al text" href="https://logbooks.jlab.org/entry/4099876" rel="nofollow">[4099876</a>]<ul><li>SL did not notify me but resolved on own. My suggestion would have been to reset the DAQ and see if the problem persisted and that's what the SL did.</li></ul></li></ul><h4><span id="Beam_Current" class="mw-headline">Beam Current</span></h4><p>We've been happily running at 40uA.</p><ul><li>I asked Sebastian to make a record of the ramp rates over the course of the past 8 hours during Saturday SWING and he went an extra step. <a class="external text" href="https://logbooks.jlab.org/entry/4099752" rel="nofollow">[4099752</a>]<ul><li>Bill has taken this further and created a strip chart that tracks this continually that seems to work very nicely. [No HALOG entry yet.]</li></ul></li></ul><h4><span id="Target_Polarization" class="mw-headline">Target Polarization</span></h4><p>Target polarization has been stable. List of the recent polarizations</p><ul><li>SUN 07:23 → 43.0% <a class="ext!
 ernal text" href="https://logbooks.jlab.org/entry/4099898" rel="nofollow">[4099898</a>]</li><li>SUN 03:15 → 41.9% <a class="external text" href="https://logbooks.jlab.org/entry/4099832" rel="nofollow">[4099832</a>]</li><li>SAT 23:30 → 42.6% <a class="external text" href="https://logbooks.jlab.org/entry/4099768" rel="nofollow">[4099768</a>]</li><li>SAT 20:30 → 41.2% <a class="external text" href="https://logbooks.jlab.org/entry/4099730" rel="nofollow">[4099730</a>]</li><li>SAT 17:00 → 40.6% <a class="external text" href="https://logbooks.jlab.org/entry/4099678" rel="nofollow">[4099678</a>]</li></ul><h1><span id="Issues_Resolved" class="mw-headline">Issues Resolved</span></h1><ul><li>Bill Henry has resolved the communication issue regarding the Moller HH magnet. Thank you, Bill. <a class="external text" href="https://logbooks.jlab.org/entry/4099942" rel="nofollow">[4099942</a>]<ul><li>The remaining alarm handler issue is the unused GEMs. Bill spoke with Zeke about thi!
 s and they agreed to bring the topic up in Monday's RC Meeting.</li></u!
 l></li></ul><h1><span id="Issues_remaining" class="mw-headline">Issues remaining</span></h1><ul><li>BB GEM APV unreachable and cannot be repaired at this time.</li></ul><h1><span id="Short_Term_Run_Plan" class="mw-headline">Short Term Run Plan</span></h1><ul><li>Continue production run on He3 target, 40 uA</li><li>Use GEnII-noSBSGEMs DAQ config</li><li>Use ps3=0, ps5=6, others =-1</li><li>BBCal threshold at -366 mV, HCal threshold at -19 mV</li><li>NMR measurement every 3 - 4 hours, close to 4 hours is better</li></ul><h1><span id="Planned_Accesses_to_the_Hall" class="mw-headline">Planned Accesses to the Hall</span></h1><p><span class="mw-headline">NONE.<br></span></p><h1><span id="Special_Requests" class="mw-headline">Special Requests</span></h1><p><em><strong><span style="text-decoration: underline;">Please email me</span></strong></em> ericking (@jlab.org or @temple.edu) if there's something to be added.</p><h1><span id="Notices_in_Effect_for_Shift_Crew" class="mw-headli!
 ne">Notices in Effect for Shift Crew</span></h1><ul><li>Power down SBS, BB, and Detector HV before making an access to the Hall</li></ul><h1><span id="Data_Collection_Status" class="mw-headline">Data Collection Status</span></h1><ul><li>77 out of 141 days (~54.6%)</li><li>(NEEDS TO BE UPDATED) Total uncorrected accumulated charge on He3: 52.999 C out of 232C (22.85%)<ul><li>2-Pass: 13.467 C</li><li>3-Pass: 39.532 C (@ end of SUNDAY OWL)</li></ul></li></ul><p> </p>

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