[Sbs] [New Logentry] RC Daily Report Dec 10th, 2022

Sat Dec 10 17:40:02 EST 2022

Logentry Text:
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<p>As promised yesterday, since there were no major problems yesterday and it has been relative smooth sailing there was no meeting today.</p><p>[The same will be true for tomorrow barring any major problems or a request from one of the spokespersons.]</p><p> </p><table><tbody><tr><td style="text-align: right;">Current RC:</td><td> </td><td>Eric King [ericking (@jlab.org or @temple.edu)]</td></tr><tr><td style="text-align: right;">Time:</td><td> </td><td>Daily at 3:30PM <strong><span style="color: red;">(NO SATURDAY MEETING)</span></strong></td></tr><tr><td style="text-align: right;">Location:</td><td> </td><td>Counting House Conference Room</td></tr></tbody></table><p> </p><h1><span id="Shift_Schedule" class="mw-headline">Shift Schedule</span></h1><ul><li><a class="external text" href="https://misportal.jlab.org/mis/physics/shiftSchedule/?experimentRunId=SBS-GEn-2022" rel="nofollow">Link to Schedule</a></li></ul><h4><span id="This_RC_Week" class="mw!
 -headline">This RC Week</span></h4><ul><li>Next empty shift is a <strong><span style="text-decoration: underline;"><span style="color: red;">Target Operator DAY shift on Sunday 12/11</span></span></strong>.</li></ul><h4><span id="Upcoming_RC_Week" class="mw-headline">Upcoming RC Week</span></h4><ul><li>There are now three (3) other remaining shifts to be filled before winter shutdown; I'm sure Andrew would like them filled asap so he doesn't have to chase down any shift workers.</li></ul><h1><span id="Accelerator_Status" class="mw-headline">Accelerator Status</span></h1><ul><li>Accelerator is running smoothly.</li><li>Hall C valve/vacuum repair is complete; they're coming back online Monday or Tuesday; they will be priority hall next week.</li></ul><h1><span id="Current_Status" class="mw-headline">Current Status</span></h1><p>We've been taking data on 3-He no major disruptions.</p><ul><li><a class="external text" href="https://logbooks.jlab.org/entry/4099388" rel="nofollow"!
 >SWING SHIFT SUMMARY</a></li><li><a class="external text" href!
 ="https://logbooks.jlab.org/entry/4099547" rel="nofollow">OWL SHIFT SUMMARY</a></li><li><a class="external text" href="https://logbooks.jlab.org/entry/4099546" rel="nofollow">DAY SHIFT SUMMARY</a></li></ul><h4><span id="Beam_Current" class="mw-headline">Beam Current</span></h4><p>After much discussion the target group came to the decision yesterday afternoon/evening to increase the beam current from 36uA to 40uA utilizing the same size raster. Everything has been running smoothly since the change.</p><h4><span id="Target_Polarization" class="mw-headline">Target Polarization</span></h4><p>Target polarization has been stable.</p><ul><li>17:00 → 40.6% <a class="external text" href="https://logbooks.jlab.org/entry/4099678" rel="nofollow">[4099678</a>]</li><li>13:45 → 40.7% <a class="external text" href="https://logbooks.jlab.org/entry/4099629" rel="nofollow">[4099629</a>]</li><li>11:00 → 40.9% <a class="external text" href="https://logbooks.jlab.org/entry/4099588" rel="no!
 follow">[4099588</a>]</li><li>08:00 → 41.5% <a class="external text" href="https://logbooks.jlab.org/entry/4099536" rel="nofollow">[4099536</a>]</li><li>03:30 → 40.9% <a class="external text" href="https://logbooks.jlab.org/entry/4099455" rel="nofollow">[4099455</a>]</li><li>23:30 → 40.3% <a class="external text" href="https://logbooks.jlab.org/entry/4099385" rel="nofollow">[4099385</a>]</li><li>20:45 → 40.7% <a class="external text" href="https://logbooks.jlab.org/entry/4099346" rel="nofollow">[4099346</a>]</li><li>17:45 → 40.8% <a class="external text" href="https://logbooks.jlab.org/entry/4099308" rel="nofollow">[4099308</a>]</li></ul><h1><span id="Issues_Resolved" class="mw-headline">Issues Resolved</span></h1><ul><li>The repeated DAQ issues which were difficult to resolve during Thursday evening into Friday morning seem to be resolved (at the moment).<ul><li>Bob ran into a minor issue in the early morning which cost about 15 minutes of data taking <a class="e!
 xternal text" href="https://logbooks.jlab.org/entry/4099495" rel="nofol!
 low">[4099495</a>]</li></ul></li><li>The Moller HH magnet motor has remained functioning since Ellen did the restart on the power supply and is cooled down. Bill is looking into why the IOC for the Moller magnet is suffering a communication error with the alarm handler. <a class="external text" href="https://logbooks.jlab.org/entry/4099258" rel="nofollow">[4099258</a>]</li><li>Hunter noticed the the laser software crashed <a class="external text" href="https://logbooks.jlab.org/entry/4099401" rel="nofollow">[4099401</a>]</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 measure!
 ment 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><ul><li>I presume that repairs for the BB GEM APV will wait until shutdown.</li></ul><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-headline">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>76 out of 141 days (~53.9%)</li><li>(NEEDS TO BE UPDATED) Total uncorrected accumulated charge on He3: 51.782 C out of 232C (22.31%)<ul><li>2-Pass: 13.467 C</li><li>3-Pass: 38.315 C (so far)<!
 /li></ul></li></ul><p> </p>

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