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<p>If the beam is taken away Monday, I might anneal the target
again. <br>
</p>
<p><br>
</p>
<p>Chris<br>
</p>
<div class="moz-cite-prefix">On 8/14/22 11:07 AM, Sebastian Kuhn
wrote:<br>
</div>
<blockquote type="cite" cite="mid:3ACBDB40-3D98-4D8F-96F7-66478EA39FF5@jlab.org">
Hi Lena,
<div class=""><br class="">
</div>
<div class="">I am glad that Ops is planning to work on our
bleedthrough problem on Monday. If indeed the pass change has
been delayed to Wednesday, we can continue taking data on NH3
until Tuesday and then switch to C for the last 3 shifts before
the pass change. We should probably plan to replace the present
NH3 sample with the other one Chris had in mind on Wednesday.</div>
<div class=""><br class="">
</div>
<div class="">- Sebastian<br class="">
<div><br class="">
<blockquote type="cite" class="">
<div class="">On Aug 14, 2022, at 10:25 AM, <a href="mailto:yprok@jlab.org" class="moz-txt-link-freetext" moz-do-not-send="true">
yprok@jlab.org</a> wrote:</div>
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<div class="">
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<h1 class="node-title" style="font-size: 1.6em;"><a href="https://logbooks.jlab.org/entry/4028691" rel="bookmark" style="text-decoration: none;" class="" moz-do-not-send="true">RC Daily
Summary August 14, 2022</a></h1>
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Lognumber<span class="Apple-converted-space"> </span><a href="https://logbooks.jlab.org/entry/4028691" class="lognumber" data-lognumber="4028691" style="text-decoration: none;" moz-do-not-send="true">4028691</a>. Submitted
by<span class="Apple-converted-space"> </span><a href="https://logbooks.jlab.org/user/yprok" style="text-decoration: none;" class="" moz-do-not-send="true">yprok</a><span class="Apple-converted-space"> </span>on<span class="Apple-converted-space"> </span><time datetime="2022-08-14T10:21:11-0400" pubdate="pubdate" class=""><a href="https://logbooks.jlab.org/entries?start_date=1660483271&end_date=1660490471&book=HBLOG&book=ELOG" style="text-decoration: none;" class="" moz-do-not-send="true">Sun, 08/14/2022 -
10:21</a></time>.<span class="Apple-converted-space"> </span></div>
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<a href="https://logbooks.jlab.org/book/hblog" style="text-decoration: none;" class="" moz-do-not-send="true">HBLOG</a><span class="Apple-converted-space"> </span><a href="https://logbooks.jlab.org/book/elog" style="text-decoration:
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Entry Makers:<span class="Apple-converted-space"> </span></th>
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yprok</td>
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<div class="logentry node-content">
<p class="">Saturday, August 13</p>
<p class="">Day Shift: Took data with NH3(+), HWP
IN. Target polarization ~51%. Bleedthru test
showed ~1nA current from Hall C.</p>
<p class="">Swing Shift: Target polarization
stopped growing at around 51%. Target group
performed an anneal between 4 and 6pm. After the
anneal, target polarization reached 58%, and we
resumed taking data. Bleedthru test showed ~1nA
current from Hall C</p>
<p class="">Sunday, August 14th<br class="">
Owl Shift: Took data with NH3(+), HWP IN.
Experienced BMT trips and DAQ problems. Called
Sergey to resolve the DAQ issues.<span class="Apple-converted-space"> </span></p>
<p class="">Day Shift. Continued taking data.
Bleedthru test showed ~1nA current from Hall C.
We have adjusted reported ABUs to account for
this problem.<span class="Apple-converted-space"> </span></p>
<p class="">Plan for the rest of the weekend:
continue to take data on NH3. Switch HWP to OUT
during the day shift on Sunday.</p>
<p class="">PD informs us that 1) Pass change has
been delayed to Wednesday (17th of August) and
2) Accelerator will try to redirect our
bleedthru current to Hall A on Monday, which
will require some downtime. There will be more
discussion about it in Monday morning meetings.<span class="Apple-converted-space"> </span></p>
<p class="">There will be no RC meeting today
unless requested by the collaborators.</p>
<p class="">Data taking progress:<br class="">
Day 4.0 nA on NH3 (HWP IN), completed runs
16672(52M), 16673(7M), 16674(16M)<br class="">
Swing 4.0 nA on NH3 (HWP IN), completed runs
16675(57M), 16676(66M)<br class="">
Owl 4.0 nA on NH3 (HWP IN), completed runs
16678(24M), 16679(25M), 16681(73M)</p>
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</article>
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