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<a style="text-decoration: none;" data-auth="NotApplicable" class="OWAAutoLink" id="OWA5c04e806-c8d9-3d38-47fe-414defec90ca" href="https://logbooks.jlab.org/entry/4420021">RC summary July 17 - July 18 Owl</a></div>
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<p style="line-height: 1.5; margin: 0.1em 0px;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;"><b>Lognumber
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4420021</a>. Submitted by <a style="text-decoration: none; margin-top: 0px; margin-bottom: 0px;" data-auth="NotApplicable" class="OWAAutoLink" id="OWAa8f585e0-1b87-d459-751d-242cebed1cd4" href="https://logbooks.jlab.org/user/hauenst">
hauenst</a> on <time datetime="2025-07-17T09:12:23-0400"></time></b></span></p>
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<p style="line-height: 1.5; margin: 0.1em 0px;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;">Last updated on
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<div style="line-height: 1.5; margin: 0px;">Thu, 07/17/2025 - 09:16</div>
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<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;">This is the RC summary for Day Shift July 17 to Owl shift July 18.</span></p>
<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;">Yesterday during day shift accelerator pushed HallC to 45uA. We couldn't not see a significant increase in rates in the halo counters so
we should be okay for bleedthrough issues for now. However, the general trip rate of the accelerator increase.</span></p>
<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;">During Swing shift RF cavity 1L09 tripped and needed repair (<a style="text-decoration: none; margin-top: 0px; margin-bottom: 0px;" data-auth="NotApplicable" class="OWAAutoLink" id="OWA34e6ff5d-b692-f94b-bdd3-1cb692416556" href="https://logbooks.jlab.org/entry/4419606">https://logbooks.jlab.org/entry/4419606</a>).
This took about 4h and got beam back before midnight.</span></p>
<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;">During Owl shift smooth production with 325nA@He4.</span></p>
<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;">Beam went off for maintenance at 6:45am and we are in controlled access.</span></p>
<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;"><u><br>
</u></span></p>
<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;"><u>ABU for last 24h</u></span></p>
<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;">- 12h of ABUs ~ 50% efficiency,</span></p>
<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;">- Total ABUs since April 5th: 1069+12=1081 --> 1081 / (75.5 * 24) = 59.7% </span></p>
<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;">- Day 103 of 151 scheduled: 103/151 = 68.2%</span></p>
<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;">- BANU: 0.6h due to DAQ reset, </span></p>
<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;"><u>Plan for today</u></span></p>
<ul>
<li style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif; line-height: 1.5;">
Repair ECAL PMTs</li><li style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif; line-height: 1.5;">
RICH work</li><li style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif; line-height: 1.5;">
BAND TDC troubleshooting</li><li style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif; line-height: 1.5;">
Afternoon: Hall walkthrough</li><li style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif; line-height: 1.5;">
Beam is expected to be back in Swing. We will do Moller run first and then proceed with standard beam checkout</li></ul>
<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;"><u>RC Meeting:</u></span></p>
<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;">We will meet as usual today at 11:30 (EST) in CH Room 200C and online via Zoom</span></p>
<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;">Zoom meeting ID: 160 570 5819</span></p>
<p style="line-height: 1.5;"><span style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;">Zoom Link:
<a style="text-decoration: none; margin-top: 0px; margin-bottom: 0px;" data-auth="NotApplicable" class="OWAAutoLink" id="OWA7a3da294-10a5-b86f-4108-905d1864157e" href="https://jlab-org.zoomgov.com/j/1605705819#success">
Link</a></span></p>
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