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<meta name="generated" content="2011/10/21 16:03:39">
<meta name="author" content="Todd Satogata">
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<h1 class="title">BTeam-2011-10-18</h1>
<div class="outline-2">
<h2 id="sec-1">2011-10-18 Thu 13:00 BTeam Meeting Notes</h2>
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<div class="outline-2">
<h2 id="sec-2">1 Run scheduling and schedule update</h2>
<ul>
<li>The <a
href="http://opsweb.acc.jlab.org/beam_strestoration_calendar/2011-10.html">October
restoration calendar</a> is linked from the <a
href="https://devweb.acc.jlab.org/twiki/bin/view/BTeam/6MSadFiles">BTeam
wiki</a><br>
</li>
<li>Send relevant ATLis items for linkage to Arne; he will post
instructions later<br>
<ul>
<li>Please update/create <a
href="http://opsweb.acc.jlab.org/CSUEApps/atlis/atlis.php">ATLis
items</a> for planned CASA support/BTeam beam items<br>
</li>
</ul>
</li>
<li>Great progress on injector setup Mon 17 Oct evening<br>
<ul>
<li>45 MeV spectrometer magnet worked, but not completely
commissioned until beam can go straight<br>
</li>
<li>Initial setup of 16.9 MeV injector for BBU was
successful by dead-reckoned magnet/gradient scaling<br>
</li>
</ul>
</li>
<li>CEBAF spin-up is now estimated for Tue 25 Oct per Arne
(though schedule is in flux)<br>
<ul>
<li>Tagger wall, valve, east spreader repair all pushed back
schedule a bit<br>
<ul>
<li>After tagger wall, we can make it to inline dump
even without valve repair done<br>
</li>
</ul>
</li>
<li>Until then, we cannot go past the 45 MeV dump; chicane
dipoles are locked out<br>
</li>
<li>Tue 18 Oct evening will hopefully establish ability to
run CW to 45 MeV dump<br>
</li>
<li><span class="todo">TODO</span> Yves/Vasily may be
interested in 45 MeV decoupling 19-21 Oct swing/owl<br>
</li>
<li>Noel has requested Optics On Call support starting Mon
24 Oct for spin-up<br>
</li>
<li>Arne: Beam tasks are scheduled on swing/owl and over
weekend<br>
</li>
<li>PEPPO is running late and likely off the table for this
week; QWeak laser table work almost done<br>
</li>
<li><span class="todo">TODO</span> Collect options for
off-hours/weekend injector work (Rough priority order)<br>
<ul>
<li>High current beam studies/setup (Ops/Injector)<br>
<ul>
<li>Can get to ~80uA now until we schedule/perform a
heat/activate cycle (or use multiple lasers)<br>
</li>
</ul>
</li>
<li>Evaluate 0L03/0L04 beam-loaded noise after
IF/GASKR/PASKR noise fix (parasitic, Ops/Clyde)<br>
</li>
<li>BBU injector setup studies (backphase bunch length
at 45 MeV spectrometer? Injector team/Todd)<br>
</li>
<li>45 MeV decoupling (Vasily/Yves)<br>
</li>
<li>Emittance studies/zigzag (Tief/Ryan/Dennis, needs
ATLis)<br>
</li>
<li>Test whether choppers are the source of differential
timing (Tief, needs ATLis)<br>
</li>
<li>BBU injector setup/M56 through chicane (after tagger
dump wall, Injector/Todd)<br>
</li>
<li>Injector training session?<br>
</li>
<li>Review ATLis list (or flush old ATLis list except
stuff created by Arne or in last 2 mo :)<br>
</li>
</ul>
</li>
<li>Arc magnet modeling/measurements for spin-up<br>
<ul>
<li>Rui needs Ken's raw magnet measurement data to
compare in detail to Jay's simulations<br>
</li>
<li>Arne strawman: turn edge effects on, turn off body
K1 until we understand body effects (consistent with
Yves)<br>
</li>
</ul>
</li>
</ul>
</li>
<li>Will also involve optics on call to have strong role in
study restoration<br>
<ul>
<li>INPROGRESS Complete document to make Optics On Call role
recommendations (Todd/Alicia/MikeMc)<br>
</li>
<li>INPROGRESS Develop a post-studies restoration checklist,
including projected high current<br>
</li>
</ul>
</li>
<li>Will gather, document, and prioritize beam studies for this
run<br>
<ul>
<li><span class="todo">TODO</span> Make list of beam physics
campaigns that are critical path for this run
(Todd/Arne/et al)<br>
<ul>
<li>Starting to collect items, will send out a specific
request to BTeam list<br>
</li>
</ul>
</li>
<li><span class="todo">TODO</span> Review strawman proposals
of beam study/spot moves/activation/Wien flip scheduling<br>
</li>
</ul>
</li>
</ul>
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<div class="outline-2">
<h2 id="sec-3">2 Optics on call</h2>
<ul>
<li><span class="todo">TODO</span> Optics on call schedule will
be developed over next few weeks, will start being on schedule
next week (Todd)</li>
</ul>
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