[Sbs] [New Logentry] RC Update -- Wednesday 06/04/25 [Short Meeting at 1:00pm]

pdbforce at jlab.org pdbforce at jlab.org
Wed Jun 4 11:35:01 EDT 2025


Logentry Text:
--
<h2>Accelerator and Hall Status</h2>
<ul>
  <li>Beam continued to be stable.</li>
  <li>Early day shift we made an effort to raise the beam current and settled at 22.5uA. Unfortunately, around 3:30pm we had to stop data taking temporarily as the CH disks were full! Alex could free up some space quickly allowing us to continue data taking at 18 uA. Then around 6pm the disks were full again! We reduced the beam current to 11uA to keep up. Then around 8pm we raised it to 15uA and stayed there overnight. Ole is working with the computer center to resolve this issue. </li>
  <li>Today is maintenance day. Beam was taken away at 6:45 am. Hall went to controlled access around 8:20am. Currently, experts are working in the hall to troubleshoot pending issues. The beam is expected to be back at 3pm.</li>
</ul>

<h2>Links to Shift Summaries</h2>
<ul>
  <li>Day Shift (Tuesday) --- <a href="https://logbooks.jlab.org/entry/4389547">https://logbooks.jlab.org/entry/4389547</a></li>
  <li>Swing Shift (Tuesday) ---  <a href="https://logbooks.jlab.org/entry/4389880">https://logbooks.jlab.org/entry/4389880</a> </li>
  <li>Owl Shift (Wednesday) --- <a href="https://logbooks.jlab.org/entry/4390089">https://logbooks.jlab.org/entry/4390089</a> </li>
</ul>

<h2>Sources of Major Downtime in the Hall</h2>
<table>
  <tr>
    <th>Source</th>
    <th>In the Last 24 hrs</th>
    <th>Since Wednesday May 28 Swing</th>
  </tr>
  <tr>
    <td>DAQ</td>
    <td>3.5 hrs</td>
    <td>30.6 hrs</td>
  </tr>
  <tr>
    <td>ECAL AC</td>
    <td>0.5 hr</td>
    <td>1.5 hrs</td>
  </tr>
</table>

<h2>Accumulated Charge on LH2</h2>
<ul>
   <li>Total Accumulated Charge at Kin3 so far: <b>15.53 C</b> (Goal: 100 C)</li>
   <li>Total Accumulated Charge at Kin3 since Wednesday May 28 Swing: <b>7.90 C</b> </li>
</ul>

<h2>Run Plan for Today</h2>
<ul>
  <li>Restore beam in the hall</li>
  <li>Take production data at @ <span style="color: black;">22.5 uA</span>. In case the file transfer speed is still an issue then reduce the beam current to accommodate for it.</li>
</ul>

<p><b>Let's meet today at the usual time (1:00 pm) to go over recent and future activities.</b><br>
Meeting details:<br>
Time: Daily at 1:00pm<br>
Location: Counting house conference room<br>
Join ZoomGov Meeting<br>
<a href="https://jlab-org.zoomgov.com/j/1616220064">https://jlab-org.zoomgov.com/j/1616220064</a><br>
Meeting ID: 161 622 0064<br>
Passcode: 314159<br>
</p>


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This is a plain text email for clients that cannot display HTML.  The full logentry can be found online at https://logbooks.jlab.org/entry/4390394
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