[Hallc_running] [Revised Logentry] RC Daily Update

[cyero at jlab.org]

Logentry Text:
--
<b>Accelerator Status:</b>
<ul>
  <li>Jan 26 Day/Swing (yesterday):
    <ul>
      <li> Beam Studies / RF Recovery </a></li>
    </ul>
  </li>
  <li>Jan 27 Owl/Day (today):
    <ul>
      <li> Tuned up Hall C line, and briefly sent 70 uA before XSEP8T tripped off, which only affects Hall C. Still no beam as of now. <a href="https://cebaf.jlab.org/dtm/open-events?event_id=16233">XSEP8T Fault</a></li>
    </ul>
  </li>
</ul>

<b>General Hall C Status:</b>
<ul>
  <li> Jan 26 Day/Swing (yesterday):
    <ul>
      <li> Hall C techs (thanks Larry, Jerry, Stan) installed and cabled Ion Chmaber (IC) between SHMS Q1 and beamline. See log-entries: <a href="https://logbooks.jlab.org/entry/3977381">IC-log1</a>,
	<a href="https://logbooks.jlab.org/entry/3977383">IC-log2</a></li>
      <li> Verified that SHMS could be rotated to 6.16 deg, with the IC installed. This is the smallest angle the Pion-LT experiment will be at in the next few days. </li>
      <li> Steve Lassiter set a new hard limit of 6.15 deg on SHMS rotation. See log-entry <a href="https://logbooks.jlab.org/entry/3977411">SHMS Rotation Limit</a> </li>
      <li> Ellen Becker fixed SHMS Q1 Power Supply communication issue, which occurred while ramping SHMS Q1 down for IC installation. See log-entry <a href="https://logbooks.jlab.org/entry/3977377">SHMS Q1 Communication Issue</a> </li>
    </ul>
  
  </li>
  <li> Jan 27 Owl/Day (today):
    <ul>
      <li> Physics beam was briefly restored to Hall C line for a brief period, enough to get a Carbon Hole check done. </li>
      <li> While attempting to send 70 uA, XSEP8T tripped off and faulted multiple times. This affects only Hall C, as it is related to the 4th-pass separator extrator.
	As of 08:51, still no fix. </li>
    </ul>
  </li> 
</ul>

<b>Hall C PION-LT Data Collection/Analysis Status:</b><br>
<ul>
  <li>Jan 27 (today):
    <ul>
      <li> ~57 % of data collected at current kinematics (statistical goal of 10,000 counts) </li>
      <li> <b>Current Kinematic Setting:</b> <br> Q2 = 5, W = 2.95, x = 0.39, low-epsilon, (SHMS Left), <br>  SHMS: 6.719 GeV/c, 8.17 deg <br> HMS: -1.104 GeV/c, 44.38 deg </li>
    </ul>
  </li>
</ul>

<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/3977753
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