[Halla_running] [Revised Logentry] RC Update - May 12

[chandan at jlab.org]

Logentry Text:
--
Here are some notable things that have happened since yesterday, and the short-term run plan:
</br>
</br>

<ul>
<li> Yesterday, the day shift went without any data. However, MCC sent 10 uA tune and CW beams and performed Harp scans. <a href="https://logbooks.jlab.org/entry/4373069"> Yesterday Day shift summary </a>, <a href="https://logbooks.jlab.org/entry/4373240"> IHA1H04B Harp </a>, <a href="https://logbooks.jlab.org/entry/4373241"> IHA1H04A Harp </a>.</li>
<li> During the yesterday's Swing shift, we didn't have any data. Here is the <a href="https://logbooks.jlab.org/entry/4373287"> Swing Shift Summary </a>. </li>
<li> Harp Scans were performed at the beginning of the owl shift. The beam size was acceptable <a href="https://logbooks.jlab.org/entry/4373417"> Harp Scans </a>.  </li>
<li> Beam centering and raster checkout were performed before moving to the LH2 target and start production at around 4 am. <a href="https://logbooks.jlab.org/entry/4373392"> Owl Shift Summary </a>.</li>
<li> We had the following three issues and those needed access into the Hall. We requested access around 11 pm and all the issues are solved. </li>
<li> The owl shift workers noticed a blank section in the ECal Cluster position distribution. Remote resetting didn't work. Solved after access.</li>
<li> The GEM Layer 1 was having issues with missing hits. Ching-Him and Ibrahim worked on this and they hope that will help. Taking pedestal data to confirm that.</li>
<li> ECal one AC unit was off. Don turned it on during access<a href="https://logbooks.jlab.org/entry/4373819"> ECal AC unit reset </a>.  </li>

</ul>


<br>

Updates from 8 am MCC meeting:
</br>
<ul>
<li> MCC decided to run only beam to A, B, and C (avoiding the regular RF separator, and going ahead with horizontal magnetic beam separation.)</li>
<li> They plan to meet at 9 am to discuss the path forward to solve. Hopefully, we will get an update on this at tomorrow's RC meeting.</li>
</ul>
<br>
Short term run plan:<br>
<ol>
<li>Take 8 hours of data with 5uA beam on LH2 - ongoing</li>
<li>Take 8 hours of data with 10uA beam on LH2.</li>
</ol>
<br>
We will have a regular RC meeting at 1:00 pm today in the CH conference room.
</br>
People can join remotely via:
<br>
<a href="https://jlab-org.zoomgov.com/j/1616220064"> Zoom link </a>
<br>
Meeting ID: 161 622 0064
<br>
Passcode: 314159
</br>


---

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/4373857
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/halla_running/attachments/20250512/c028ac52/attachment.htm>