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</style><article id="node-712567" class="node node-logentry contextual-links-region article ia-n clearfix" role="article"><header class="node-header"><h1 class="node-title">
<a href="https://logbooks.jlab.org/entry/3639662" rel="bookmark">RC: Daily update</a>
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</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/3639662/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/3639662/delete?destination=email/send">Delete</a></li></ul></div>
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Lognumber <a href="https://logbooks.jlab.org/entry/3639662" class="lognumber" data-lognumber="3639662">3639662</a>. Submitted by <a href="https://logbooks.jlab.org/user/mdiefent">mdiefent</a> on <time datetime="2018-12-17T10:41:25-0500" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1545057685&end_date=1545064885&book=HCLOG">Mon, 12/17/2018 - 10:41</a></time>. </p>
<table class="field-vitals"><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/hclog">HCLOG</a></td></tr></table></div>
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<p><strong><span style="font-family: Helvetica; font-size: 12px;">Update on day and swing shifts of </span><span style="font-family: Helvetica; font-size: 12px;">Saturday</span><span style="font-family: Helvetica; font-size: 12px;">, December 16, and owl shift of Monday, December 17</span></strong><br style="font-family: Helvetica; font-size: 12px;" /><br style="font-family: Helvetica; font-size: 12px;" /><strong><span style="font-family: Helvetica; font-size: 12px;">CEBAF status</span></strong><span style="font-family: Helvetica; font-size: 12px;">:</span><span style="font-family: Helvetica; font-size: 12px;"> </span></p><ul><li><span style="font-family: Helvetica; font-size: 12px;">Received 7.6 hours of beam during the day shift (</span><span style="font-family: Helvetica; font-size: 12px;"><a href="https://logbooks.jlab.org/entry/3639418">https://logbooks.jlab.org/entry/3639418</a></span><span style="font-family: Helvetica; font-size: 12px;">).</span><span style="font-family: Helvetica; font-size: 12px;"> </span></li><li><span style="font-family: Helvetica; font-size: 12px;">Received 7.8 hours of beam during the swing shift (</span><span style="font-family: Helvetica; font-size: 12px;"><a href="https://logbooks.jlab.org/entry/3639511">https://logbooks.jlab.org/entry/3639511</a></span><span style="font-family: Helvetica; font-size: 12px;">).</span><span style="font-family: Helvetica; font-size: 12px;"> </span></li><li><span style="font-family: Helvetica; font-size: 12px;">Received 7.0 hours of beam during the owl shift (</span><span style="font-family: Helvetica; font-size: 12px;"><a href="https://logbooks.jlab.org/entry/3639597">https://logbooks.jlab.org/entry/3639597</a></span><span style="font-family: Helvetica; font-size: 12px;">).</span><span style="font-family: Helvetica; font-size: 12px;"> </span></li></ul><div style="font-family: Helvetica; font-size: 12px;"><strong>Hall C status</strong>: <br /><ul><li>Three-pass beam with an energy of 4.933 GeV is delivered to Hall C. </li><li>Hall C is setup for the Kaon LT experiment (E12-09-011). The experiments aims for the first precision measurements of L/T separated kaon electroproduction cross sections above the resonance region. Details on the Kaon LT experiment can be found on: <a href="https://redmine.jlab.org/projects/kltexp/wiki">https://redmine.jlab.org/projects/kltexp/wiki</a></li><li>During the end of the owl shift on December 15, the collimator position was shown in the the "HMS Collimator Motion Control" GUI as home instead of the large collimator position (<a href="https://logbooks.jlab.org/entry/3639324">https://logbooks.jlab.org/entry/3639324</a>). The displayed position did not update after the reset and homing procedure (<a href="https://logbooks.jlab.org/entry/3639344">https://logbooks.jlab.org/entry/3639344</a>). Dave Gaskell verified in the data that the collimator position has not changed (<a href="https://logbooks.jlab.org/entry/3639351">https://logbooks.jlab.org/entry/3639351</a>). So we decided to continue data taking and work on the HMS Collimator Motion Control during the controlled access on Monday, December 17. </li><li>On Monday, December 17, we will change during a control access the SHMS angle to angle of 6.00 degree. </li></ul><div><strong>Data taking</strong>: <br /><ul><li>The detailed run plan is available on: <a href="https://redmine.jlab.org/attachments/download/590/runplan_4p9gev.pdf">https://redmine.jlab.org/attachments/download/590/runplan_4p9gev.pdf</a></li><li>We have done the harp scan: <a href="https://logbooks.jlab.org/entry/3638031 ">https://logbooks.jlab.org/entry/3638031 </a>(see also 3638030 and the work documented in entries 3638025 and 638027)</li><li>We have taken the data for the calibration runs: Holly has done the sieve and beam position comparisons: <a href="https://logbooks.jlab.org/entry/3638085">https://logbooks.jlab.org/entry/3638085</a>. Richard documented his analysis of the heep coincidence runs: <a href="https://logbooks.jlab.org/entry/3638592 No">https://logbooks.jlab.org/entry/3638592 No</a> offsets are observed in the missing mass and momentum distributions. </li><li>On December 14 at around 8:30 a.m., MCC started the beam energy measurement. </li><li>We have started data taking in the high epsilon setting. We have completed our charge goals for the SHMS angles of 8.86 and 11.86 degrees and for both LH2 and dummy targets. </li></ul><div><strong>Hall C Daily RC meeting</strong>: We will meet today at 4:15 p.m. (EDT) in the conference room on the second floor of the counting house. Remote participation will be possible via BlueJeans (ID: 861439920). You can join via: <br /><ul><li>browser: <a href="https://bluejeans.com/861439920">https://bluejeans.com/861439920</a></li><li>phone: (888) 240-2560 (US toll free); list of international phone numbers: <a href="http://bluejeans.com/number">http://bluejeans.com/number</a></li></ul>We will review the status of the experiment, report on the SHMS move, and discuss the run plan for the setting with a SHMS angle of 6.00 degree. </div></div></div> </div>
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