[Hallc_running] [New Logentry] RC Report: Saturday, November 20

[mdiefent at jlab.org]

Logentry Text:
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<p><strong><span style="font-family: Helvetica; font-size: 12px;">Accelerator Status</span><span style="font-family: Helvetica; font-size: 12px;"> </span></strong></p><ul><li><span style="font-family: Helvetica; font-size: 12px;">Problems with 4th pass separator: </span></li><ul><li><span style="font-family: Helvetica; font-size: 12px;">Repair failed on Friday (https://logbooks.jlab.org/entry/3946742). </span></li><li><span style="font-family: Helvetica; font-size: 12px;">Work continues over the weekend but will not be completed before Monday (https://logbooks.jlab.org/entry/3947191). </span></li></ul><li><span style="font-family: Helvetica; font-size: 12px;">Request from Hall A to move pass change from Wednesday day to Tuesday swing (please see also below).</span></li></ul><div style="font-family: Helvetica; font-size: 12px;"><br><strong>Experimental Status </strong></div><div><ul><li style="font-family: Helvetica; font-size: 12px;">Data t!
 aking for the <strong>Pion-LT experiment</strong> (E12-19-006) in the SHMS center position of 6.60 degrees: </li><ul><li style="font-family: Helvetica; font-size: 12px;">Collected 34% of the requested p(e,e′π+)n coincidences.</li></ul><li><span style="font-family: Helvetica; font-size: 12px;">Lost three hours of data taking due to problems with HMS Q3 interlock (https://logbooks.jlab.org/entry/3947079): </span></li><ul><li><span style="font-family: Helvetica; font-size: 12px;">"Safety OCP” interlock of HMS Q3. Ellen Becker replaced the low voltage power supplies and the interlock cleared and the magnet ramped up (https://logbooks.jlab.org/entry/3947151). </span></li><li><span style="font-family: Helvetica; font-size: 12px;">Ellen Becker will replace all older low voltage supplies during the pass change next week (https://logbooks.jlab.org/entry/3947151). </span></li><li><span style="font-family: Helvetica; font-size: 12px;"><strong>Re!
 maining issue:</strong> Magnet expert "on call" not responsive!
 . </span></li></ul></ul></div><div style="font-family: Helvetica; font-size: 12px;"><div> </div><div><strong>RC meeting: </strong><br><ul><li>We will have our next RC meeting on Monday, November 22, at 10:00 a.m. (EST). </li><li>We will discuss progress on the data taking and the request from Hall A to move the pass change from Wednesday day to Tuesday swing. </li><li>In one of the next RC meetings, we will discuss with experts the recent magnet problems, e.g.: https://logbooks.jlab.org/entry/3946859</li></ul></div></div>

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