<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css">
<!--
html{color:#555555;}body{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>
</head>
<body id="mimemail-body" class="elog-logentry-notify">
<div id="center">
<div id="main">
<style>
<!--/*--><![CDATA[/* ><!--*/
div.field-vitals{
margin: 0.5em 0;
}
div.field-vitals .field-type-taxonomy-term-reference {
margin: 0.1em 0;
}
article.comment {
padding-left: 10px;
}
article.comment.odd {
background-color: #EEEEEE;
}
article.comment.even {
background-color: #DDDDDD;
}
div.node-content.logentry table{
width: auto;
border-collapse: collapse;
border-spacing: 0;
border-width: 1px;
}
div.node-content.logentry th{
border: inherit;
}
div.node-content.logentry blockquote{
background-color: #FFFFFF;
}
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: 0;
list-style-type: none;
list-style-image: none;
}
table.downtime {
width: 30em;
margin-bottom: 1em;
border: 1px black dotted;
}
table.downtime th {
text-align: center;
}
table.downtime td {
text-align: center;
}
tr.caption th {
border-bottom: none;
}
table.downtime tfoot{
background-color:#EEEEEE;
}
div.field-name-body{
margin: 1em 0;
font-size: 110%;
}
div.date-vitals p{
margin: .1em 0;
}
article div.ctools-collapsible-container{
margin-left: -5px;
clear: both;
}
#comment-form{
margin-left: 5px;
border: graytext outset medium;
-moz-border-radius: 15px;
border-radius: 15px;
padding: 1em;
}
div.comments-form-box {
margin-top: 2em;
margin-bottom: 5em;
}
h3.comment-title {
/* display: none; */
}
p.author-datetime{
font-weight: bold;
}
/*--><!]]>*/
</style><article id="node-1367475" 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/4294427" rel="bookmark">RC update 2024/05/02</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/4294427/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/4294427/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/4294427" class="lognumber" data-lognumber="4294427">4294427</a>. Submitted by <a href="https://logbooks.jlab.org/user/efuchey">efuchey</a> on <time datetime="2024-05-02T10:10:31-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1714655431&end_date=1714662631&book=HALOG">Thu, 05/02/2024 - 10:10</a></time>. </p>
<table class="field-vitals"><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/halog">HALOG</a></td></tr></table></div>
<div class="logentry node-content">
<p>Yesterday day was accelerator maintenance day, so Hall A went to restricted.<br />
Activities during maintenance day:<br />
- GEM work: attempt to fix several SBS GEM modules <a href="https://logbooks.jlab.org/entry/4294008">https://logbooks.jlab.org/entry/4294008</a><br />
- Active analyzer work: Bill installed the amplifier and optimized HVs: <a href="https://logbooks.jlab.org/entry/4294333">https://logbooks.jlab.org/entry/4294333</a><br />
- ECal work;<br />
Went back from restricted to controlled around 6:00 pm yesterday: <a href="https://logbooks.jlab.org/entry/4293951">https://logbooks.jlab.org/entry/4293951</a><br />
Work continued afterwards till midnight</p>
<p>Afterwards, several issues prevented accelerator to deliver beam after the "promised" time of 8pm:<br />
- RF issues to south LINAC: <a href="https://logbooks.jlab.org/entry/4294130">https://logbooks.jlab.org/entry/4294130</a><br />
- Injector issues: <a href="https://logbooks.jlab.org/entry/4294146">https://logbooks.jlab.org/entry/4294146</a><br />
- Beam jitter issues: <a href="https://logbooks.jlab.org/entry/4294171">https://logbooks.jlab.org/entry/4294171</a></p>
<p>Beam available since 5:50 am.<br />
We took harp scans: <a href="https://logbooks.jlab.org/entry/4294217">https://logbooks.jlab.org/entry/4294217</a> <a href="https://logbooks.jlab.org/entry/4294218">https://logbooks.jlab.org/entry/4294218</a> <a href="https://logbooks.jlab.org/entry/4294285">https://logbooks.jlab.org/entry/4294285</a><br />
After that, we experienced issues with target:<br />
- Target ladder got stuck;<br />
- we tried to reboot IOC to solve it, but PID did not come back properly after; <a href="https://logbooks.jlab.org/entry/4294238">https://logbooks.jlab.org/entry/4294238</a><br />
- Chandan and Silviu solved the problem (thank you!)<br />
- needed to hit "Clear Record" to fix the problem.</p>
<p>Problem solved around 7am.<br />
Then we took carbon hole run: <a href="https://logbooks.jlab.org/files/2024/05/4294403/summaryPlots_625_SBS_critical_noSBSGEMs.pdf">https://logbooks.jlab.org/files/2024/05/4294403/summaryPlots_625_SBS_cri...</a><br />
Beam is centered. Switched all HVs on and got back to production: <a href="https://logbooks.jlab.org/entry/4294343">https://logbooks.jlab.org/entry/4294343</a><br />
Then we experienced DAQ issues, due to mssing MPDs: <a href="https://logbooks.jlab.org/entry/4294362">https://logbooks.jlab.org/entry/4294362</a><br />
They were fixed by powercycling corresponding crate.<br />
We took our first production data since yesterday: <a href="https://logbooks.jlab.org/entry/4294386">https://logbooks.jlab.org/entry/4294386</a><br />
This morning, we're implementing, in parallel of data taking, a short plan (~30min) to slightly increase argon in GEMs gas mix in order to increase productivity: <a href="https://logbooks.jlab.org/entry/4294418">https://logbooks.jlab.org/entry/4294418</a></p>
</div>
<div class="attachment-box">
</div>
</article> </div>
</div>
</body>
</html>