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</style><article id="node-890342" 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/3817363" rel="bookmark">Follow-up Re: Fopt 20jul280549 results: After 5A dispersion checks and corrections</a>
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</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/3817363/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/3817363/delete?destination=email/send">Delete</a></li></ul></div>
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<p class="author-datetime">
Lognumber <a href="https://logbooks.jlab.org/entry/3817363" class="lognumber" data-lognumber="3817363">3817363</a>. Submitted by <a href="https://logbooks.jlab.org/user/bfreeman">bfreeman</a> on <time datetime="2020-07-28T07:41:15-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1595932875&end_date=1595940075&book=BTLOG&book=ELOG">Tue, 07/28/2020 - 07:41</a></time>. </p>
<table class="field-vitals"><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/btlog">BTLOG</a> <a href="https://logbooks.jlab.org/book/elog">ELOG</a></td></tr><tr><th>References: </th><td><a href="https://logbooks.jlab.org/entry/3817337">3817337 - Fopt 20jul280549 results: After 5A dispersion checks and corrections</a></td></tr></table></div>
<div class="logentry node-content">
<p>I think the Arc 1 on design FOPT looked better than what we have now:</p>
<p><a href="https://logbooks.jlab.org/entry/3816778">https://logbooks.jlab.org/entry/3816778</a></p>
<p>Although Swing Crew last night backed out of half the changes I would consult optics folks about backing all the way out. One can see that the beta still rises in Arc 1, and very large DiffX in Arc1 still. We are suppressing it in 1R->2S. If we keep the 1S optics where they are we will need to back up to 2R and take a look at those DIffX is large out of 2R. Emailing this log entry to BTeam for consultation.</p>
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