[Hallc_running] [New Logentry] RC: Daily update

Thu Dec 20 08:25:02 EST 2018

Logentry Text:
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<div style="caret-color: #313131; color: #313131; font-family: 'Trebuchet MS', 'Helvetica Neue', Arial, Helvetica, sans-serif; font-size: 14px; margin-top: 0.4em; margin-bottom: 0.8em; padding: 0px;"><span style="font-weight: bold;"><span style="font-family: Helvetica; font-size: 12px;">Update on day and swing shifts of Wednesday</span><span style="font-family: Helvetica; font-size: 12px;">, December 19, and owl shift of Thursday, December 20</span></span><br style="font-family: Helvetica; font-size: 12px;"><br style="font-family: Helvetica; font-size: 12px;"><span style="font-weight: bold;"><span style="font-family: Helvetica; font-size: 12px;">CEBAF status</span></span><span style="font-family: Helvetica; font-size: 12px;">:</span><span style="font-family: Helvetica; font-size: 12px;"> </span></div><div style="font-family: Helvetica; font-size: 12px; caret-color: #313131; color: #313131;"><ul style="margin: 0px 0px 1.5em 30px; padding: 0px;"><li>Received 7.7 hours of beam duri
 ng the day shift (<a style="text-decoration: none; color: #0000ee;" href="https://logbooks.jlab.org/entry/3640114">https://logbooks.jlab.org/entry/3640412</a>). </li><li>Received 7.5 hours of beam during the swing shift (<a style="text-decoration: none; color: #0000ee;" href="https://logbooks.jlab.org/entry/3640200">https://logbooks.jlab.org/entry/3640515</a>). </li><li>Received 7.4 hours of beam during the owl shift (<a href="https://logbooks.jlab.org/entry/3640609">https://logbooks.jlab.org/entry/3640609</a>). The physics run has ended at 6:30 a.m., half an hour before the end of the accelerator owl shift. </li></ul></div><div style="caret-color: #313131; color: #313131; font-family: 'Trebuchet MS', 'Helvetica Neue', Arial, Helvetica, sans-serif; font-size: 14px; margin-top: 0.4em; margin-bottom: 0.8em; padding: 0px;"><span style="font-weight: bold;"><span style="font-family: Helvetica; font-size: 12px;">Hall C status</span></span><span style="font-family: Helvetica
 ; font-size: 12px;">: </span></div><div!
  style="font-family: Helvetica; font-size: 12px;"><ul style="margin: 0px 0px 1.5em 30px; padding: 0px;"><li style="caret-color: #313131; color: #313131;">Three-pass beam with an energy of 4.933 GeV is delivered to Hall C. </li><li style="caret-color: #313131; color: #313131;">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 style="text-decoration: none; color: #0000ee;" href="https://redmine.jlab.org/projects/kltexp/wiki">https://redmine.jlab.org/projects/kltexp/wiki</a></li><li style="caret-color: #313131; color: #313131;">The owl shift ramped down and switched off the magnets (<a href="https://logbooks.jlab.org/entry/3640599">https://logbooks.jlab.org/entry/3640599</a>) and turned off the HV of all detectors (<a href="https://logbooks.jlab.org/entry/3640600">https://logbo
 oks.jlab.org/entry/3640600</a>). At the end of the owl shift, Howard started to turn off LV. </li><li style="caret-color: #313131; color: #313131;">At the end of the owl shift, Dave Meekins has started to warm up the target. </li></ul></div><div style="caret-color: #313131; color: #313131; font-family: 'Trebuchet MS', 'Helvetica Neue', Arial, Helvetica, sans-serif; font-size: 14px; margin-top: 0.4em; margin-bottom: 0.8em; padding: 0px;"><span style="font-weight: bold;"><span style="font-family: Helvetica; font-size: 12px;">Data taking</span></span><span style="font-family: Helvetica; font-size: 12px;">: </span></div><div style="font-family: Helvetica; font-size: 12px; caret-color: #313131; color: #313131;"><ul style="margin: 0px 0px 1.5em 30px; padding: 0px;"><li>We completed high epsilon running with a beam energy of 4.933 GeV (<span style="color: #0000ee;"><a href="https://redmine.jlab.org/attachments/download/590/runplan_4p9gev.pdf">https://redmine.jlab.org/attachm
 ents/download/590/runplan_4p9gev.pdf</a></sp!
 an>):&nbs!
 p;</li><li>We have done the harp scan: <a style="text-decoration: none; color: #0000ee;" href="https://logbooks.jlab.org/entry/3638031%C2%A0">https://logbooks.jlab.org/entry/3638031 </a>(see also 3638030 and the work documented in entries 3638025 and 638027)</li><li>We have completed the energy measurement during the day shift of December 14: <a style="text-decoration: none; color: #0000ee;" href="https://logbooks.jlab.org/entry/3638789%C2%A0">https://logbooks.jlab.org/entry/3638789 </a>(and 3638787 for details on beam size). The beam energy is 4.9320 +/- 0.0026 GeV. </li><li>We have taken the data for the calibration runs: Holly has done the sieve and beam position comparisons: <a style="text-decoration: none; color: #0000ee;" href="https://logbooks.jlab.org/entry/3638085">https://logbooks.jlab.org/entry/3638085</a>. Richard has documented his analysis of the heep coincidence runs: <a style="text-decoration: none; color: #0000ee;" h
 ref="https://logbooks.jlab.org/entry/3638592%C2%A0Nooffsets">https://logbooks.jlab.org/entry/3638592 </a>No offsets are observed in the missing mass and momentum distributions. </li><li>We have completed our charge goals for the SHMS angles of 8.86 and 11.86 degrees and for both LH2 and thick dummy targets. </li><li>We have taken data for the SHMS angle of 6.00 degree with beam charges of 11 uA and 16uA and for both LH2 and thick dummy targets and reached 93.4% of our (reduced) Lambda events goal (<a href="https://hallcweb.jlab.org/wiki/index.php/Kaon_LT_Status_Page">https://hallcweb.jlab.org/wiki/index.php/Kaon_LT_Status_Page</a>). </li></ul></div><div style="font-family: Helvetica; font-size: 12px; margin-top: 0.4em; margin-bottom: 0.8em; padding: 0px;"><div style="margin-top: 0.4em; margin-bottom: 0.8em; padding: 0px;"><span style="caret-color: #313131; color: #313131; font-family: 'Trebuchet MS', 'Helvetica Neue', Arial, Helvetica, sans-serif; font-size:
  14px; font-weight: bold;"><span style="font!
 -family: !
 Helvetica; font-size: 12px;">Hall C Daily RC meeting</span></span><span style="caret-color: #313131; color: #313131;">: There </span><span style="color: #313131;">will be no meeting today. </span></div></div>

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