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<article id="node-1396550" class="node node-logentry article ia-n clearfix" role="article">
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<a href="https://logbooks.jlab.org/entry/4323493" rel="bookmark">Follow-up Re: Buffer Dewar 4 K supply and Return U-tube removal</a>
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<p class="author-datetime">
Lognumber <a href="https://logbooks.jlab.org/entry/4323493" class="lognumber" data-lognumber="4323493">4323493</a>. Submitted by <a href="https://logbooks.jlab.org/user/mcookiv">mcookiv</a> on <time datetime="2024-12-12T10:44:54-0500" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1734014694&end_date=1734021894&book=HBLOG&book=HBTORUS&book=CLOG">Thu, 12/12/2024 - 10:44</a></time>. </p>
<table class="field-vitals">
<tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/hblog">HBLOG</a> <a href="https://logbooks.jlab.org/book/hbtorus">HBTORUS</a> <a href="https://logbooks.jlab.org/book/clog">CLOG</a></td></tr>
<tr><th>Entry Makers: </th><td>mcookiv</td></tr>
<tr><th>References: </th><td><a href="https://logbooks.jlab.org/entry/4323481">4323481 - Buffer Dewar 4 K supply and Return U-tube removal</a></td></tr>
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<div class="logentry node-content">
<p>The work was stopped. During the pre-job briefing it was realized that all of the valves (4K supply, 4K return, warm return) are closed and there isn't any pressure in the buffer dewar. As we are unsure when the valves were closed and the level of contamination the dewar may have, the current procedure is no longer applicable and will be re-written. We will re-start the first week of January 2025</p>
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