<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
</head>
<body>
<div style="color: rgb(33, 33, 33); background-color: rgb(255, 255, 255);" dir="auto">
<a href="https://logbooks.jlab.org/entry/3926253" rel="bookmark" style="font-size: 1.6em; font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif;">RC Update and plan for swing and owl</a><br>
</div>
<div id="id-3f7fa01b-504f-418a-9770-e8cb5a446cb1" class="ms-outlook-mobile-reference-message" dir="auto">
<div id="center">
<div id="main">
<div class="contextual-links-wrapper">
<ul class="contextual-links">
<li><a href="https://logbooks.jlab.org/entry/3926253/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/3926253/delete?destination=email/send">Delete</a></li></ul>
</div>
<div class="date-vitals">
<p class="author-datetime">Lognumber <a href="https://logbooks.jlab.org/entry/3926253" class="lognumber">
3926253</a>. Submitted by <a href="https://logbooks.jlab.org/user/pking">pking</a> on
<time datetime="2021-10-16T19:52:20-0400"><a href="https://logbooks.jlab.org/entries?start_date=1634424740&end_date=1634431940&book=HALOG">Sat, 10/16/2021 - 19:52</a></time>.
</p>
<table class="field-vitals">
<tbody>
<tr>
<th>Logbooks: </th>
<td><a href="https://logbooks.jlab.org/book/halog">HALOG</a></td>
</tr>
</tbody>
</table>
</div>
<div class="logentry node-content" dir="auto">
<p>Since this morning, we have completed our series of runs on LH2 at different beam currents with SBS set to 100% field. The list of runs is at the bottom of the message.</p>
<p>At about 17:00, we changed the SBS setting to 50% (<a href="https://logbooks.jlab.org/entry/3926154">https://logbooks.jlab.org/entry/3926154</a>,
<a href="https://logbooks.jlab.org/entry/3926172">https://logbooks.jlab.org/entry/3926172</a>, and
<a href="https://logbooks.jlab.org/entry/3926189">https://logbooks.jlab.org/entry/3926189</a>). We changed our beam position from Y=0.9 to Y=0.7 to be centered on the 2mm hole target; this was reversing about half of the change needed to go from zero field
to full field (<a href="https://logbooks.jlab.org/entry/3926196">https://logbooks.jlab.org/entry/3926196</a>).</p>
<p>We then put the LD2 target into beam, and OPS performed the ion chamber calibration for it.</p>
<p>We are currently taking an hour of data on the LD2 target with a beam current of 2.5uA. After this we will switch back to LH2 with 5uA of beam current.</p>
<p>*** I plan to have an RC meeting tomorrow at 3:15pm to discuss our final two shifts using 1-pass beam. ***</p>
<p><br>
</p>
<p>Plan for tonight through tomorrow morning<br>
================================<br>
Runs should be about an hour long; you can use the whiteboard to keep track of how much time we have on each target.<br>
1) Take 4 hours of data on the LH2 target with 5 uA of beam current.<br>
2) Take 2 hours of data on the LD2 target with 2.5uA of beam current<br>
3) Continue to repeat steps (1), (2), and (3).</p>
<p><br>
</p>
<p>Run list for the beam current scans with SBS at 100% field<br>
============================================<br>
Run 11207: LH2, 1uA beam current, BBCal threshold -250mV, PS1==1, PS2==2</p>
<p>Run 11208: LH2, 2uA beam current, BBCal threshold -250mV, PS1==1, PS2==2, others off<br>
Run 11212: LH2, 2uA beam current, BBCal threshold -250mV, PS1==1, PS2==2, others off<br>
Run 11214: LH2, 2uA beam current, BBCal threshold -250mV, PS1==1, PS2==2, others off</p>
<p>Run 11215: LH2, 3uA beam current, BBCal threshold -250mV, PS1==1, PS2==2, others off</p>
<p>Run 11216: LH2, 3uA beam current, BBCal threshold -262mV, PS1==1, others off<br>
Run 11218: LH2, 3uA beam current, BBCal threshold -262mV, PS1==1, others off<br>
Run 11219: LH2, 3uA beam current, BBCal threshold -262mV, PS1==1, others off; GMN1_pedestal (no zero suppression)</p>
<p>Run 11224: LH2, 4uA beam current, BBCal threshold -262mV, PS1==1, others off<br>
Run 11226: LH2, 4uA beam current, BBCal threshold -262mV, PS1==1, others off</p>
<p>Run 11228: LH2, 5uA beam current, BBCal threshold -262mV, PS1==1, others off</p>
<p>Run 11229: LH2, 5uA beam current, BBCal threshold -274mV, PS1==1, others off<br>
Run 11230: LH2, 5uA beam current, BBCal threshold -274mV, PS1==1, others off<br>
Run 11235: LH2, 5uA beam current, BBCal threshold -274mV, PS1==1, others off</p>
</div>
<div class="attachment-box"></div>
</div>
</div>
<br>
</div>
<style type="text/css">html { color: rgb(85, 85, 85); }
#id-3f7fa01b-504f-418a-9770-e8cb5a446cb1 { line-height: 1.5; font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif; font-size: 87.5%; }
h1 { font-size: 1.6em; }
h2.field-label { display: inline-block; font-size: 1em; padding-right: 5px; min-width: 10em; margin: 0.3em; }
.problem_report { line-height: 1.5; max-width: 60em; }
fieldset.problem_report.resolved legend { background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAy0lEQVQ4jWP8//8/AyWAiZACd3f3/xYWFrht+f//P1a84t3e/0obff4rbfT5D1GGXR0LuoEr3+/7X3W4n2gvwA0gVSOKAcqbfPGGpImJCU45JgYGBoa7fpsZ22wLSbadgYGBgRE9GrF55Vf2BYbHjx8zYjWB0ljAcAGGExkZ/0MtwuoCggmJEBh4AzBS4pMnT/7fuXOH4dKlSwwnT56EiwcGBv43MDBgMDExYdDX12eQkZGBhAlyiC5YsOA/AwMDUXjLli3/iYoFQgAA+pSxZrXofD0AAAAASUVORK5CYII="); background-repeat: no-repeat; padding-left: 18px; }
fieldset.problem_report.needs_attention legend { background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAA9ElEQVR42sWTvUoDQRSFv9wMKWxSBVmzdhZJIwTWv9pyLWxTpbE1kBeJPoLxBazzBgGFKNqlHXAhsITUw1y7sMpmjER0YJrDPWcO556BPzhjYPJjlhfT82LUpxcK6Lo5U0JMgcu56tXy7BQajeBDpkAcAEdz1W6uyrLdYieK2DMmKCArcqczpH/ddc0msy+OkyQJC4h3N0ynx+Q5ALtUNs5q5U+8e+R+VPFi4kjk3NZqd++qUK+TZVnYwSfAOyvejeLXt/2qVG/dYoG1dqseBNco27bs/wXKWhIDB8AhcFLAH4Bn4Al4AUqT7RVC++6mv/JVPwDi3VGzomYvyAAAAABJRU5ErkJggg=="); background-repeat: no-repeat; padding-left: 18px; }
.problem_report div.field-items { display: inline-block; }
div.date-vitals p { font-size: 87.5%; }
a { text-decoration: none; }
.Readme a:link, .Readme a:visited, .Readme a:active { color: red; }</style><style>div.field-vitals { margin: 0.5em 0px; }
div.field-vitals .field-type-taxonomy-term-reference { margin: 0.1em 0px; }
article.comment { padding-left: 10px; }
article.comment.odd { background-color: rgb(238, 238, 238); }
article.comment.even { background-color: rgb(221, 221, 221); }
div.node-content.logentry table { width: auto; border-collapse: collapse; border-spacing: 0px; border-width: 1px; }
div.node-content.logentry th { border: inherit; }
div.node-content.logentry blockquote { background-color: rgb(255, 255, 255); }
div.node-content.logentry caption { font-size: 1em; font-weight: normal; }
table.field-vitals { margin-top: 1em; margin-bottom: 1em; font-size: 87.5%; }
table.field-vitals th { vertical-align: middle; text-align: left; width: 15%; padding: 0.1em; }
table.field-vitals td { vertical-align: middle; text-align: left; width: auto; padding: 0.1em; }
table.field-vitals td li { margin-left: 0px; list-style-type: none; list-style-image: none; }
table.downtime { width: 30em; margin-bottom: 1em; border: 1px dotted black; }
table.downtime th { text-align: center; }
table.downtime td { text-align: center; }
tr.caption th { border-bottom: none; }
table.downtime tfoot { background-color: rgb(238, 238, 238); }
div.field-name-#id-3f7fa01b-504f-418a-9770-e8cb5a446cb1 { margin: 1em 0px; font-size: 110%; }
div.date-vitals p { margin: 0.1em 0px; }
article div.ctools-collapsible-container { clear: both; }
#comment-form { margin-left: 5px; border: medium outset graytext; border-radius: 15px; padding: 1em; }
div.comments-form-box { margin-top: 2em; margin-bottom: 5em; }
p.author-datetime { font-weight: bold; }</style>
</body>
</html>