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<div class="moz-text-html" lang="x-western"> <b>Daily RC Report 5/27:</b><br>
Everyone on the commissioning program is making good progress. On last
SWING good step forward finding launch orbit to production target
required for effective collection and defining quadrupole settings to
transport beam to targets. Likewise, first annihilation coincidence
events w/ test e- beam. On last OWL excellent progress defining
operational parameters for the Compton detectors, measuring physics
asymmetry as a function of the Compton target polarization. On last
DAY production of very thorough look-up table to generate and setup
beam momenta from 3-8 MeV/c. Heading into this SWING setup of T=5MeV
beam with optics for nice round spot completed. Tests for reproducing
orbits on T1 at various momenta was held up for ~couple hours due to a
video switcher hardware failure, now corrected. We're back on
commissioning program...<br>
<br>
<b>Noteworthy items:</b><br>
<ul>
<li>After passing the 7.2MeV threshold RadCon performed survey of
Injector
w/o problems. We continue to operate with rapid access system.</li>
<li>Use BURT to save setups/load setups
<ul>
<li> know what you're downloading (global injector downloads are
unnecessary)
</li>
<li> state destination and beam momentum
</li>
</ul>
</li>
<li>Communicate in P[MeV/c], E[MeV], T[MeV]
</li>
<li>We wills start making accesses more often - access checklists
must be performed
</li>
<li>Please start refining your procedures/links at the wiki How To<a
href="https://positron.jlab.org/wiki/index.php/Shift_takers_how-to_procedures"
class="external text"
title="https://positron.jlab.org/wiki/index.php/Shift_takers_how-to_procedures"
rel="nofollow"></a>
</li>
</ul>
<b>Next 24 hours:</b><span class="mw-headline"><br>
<br>
SUMMARY Sunday, 5/27 - Owl Run Plan: SL=Suleiman</span>
<ul>
<li>Completed CD3 - Determine rate and LV for integrated method
</li>
<li>Completed CD5 - Study analyzing magnet magnetization vs. magnet
current
</li>
<li>Completed CD6 - Study asymmetry vs. PITA at AM=+/-60A
</li>
</ul>
<span class="mw-headline">SUMMARY Sunday, 5/27 - Day Run Plan:
SL=Poelker</span>
<ul>
<li>Completed - Setup/save cryounit settings (gradients/phase)
crested to beam on 2D spectrometer
</li>
<li>Completed - Define Mott energy setup (T=5.000MeV, E=5.511MeV,
5.487MeV/c)
</li>
<li>RadCon assessment @ 1530<br>
</li>
</ul>
<p>
3 pA PMT Asymmetry response to PITA scan
</p>
<p><a href="https://cebaf.jlab.org/elog/entry/1787912"
class="external free" title="https://cebaf.jlab.org/elog/entry/1787912"
rel="nofollow">https://cebaf.jlab.org/elog/entry/1787912</a>
</p>
Planned <span class="mw-headline">Sunday, 5/27 - Swing Run Plan:
SL=Freyberger</span>
<ul>
<li>Setup
<ul>
<li>Use Matt's setting for ~near P=5.487MeV/c
</li>
<li>Measure P, Setup to T1 (quads + center on S1)
</li>
</ul>
</li>
<li>Measurements
<ul>
<li>NEED ACCESS TO INSTALL TS1
</li>
<li>CB17 - Production current/targets (vacuum, radiation,
conditions)
</li>
<li>CD8 - Compton trigger assessment
</li>
</ul>
</li>
</ul>
Planned <span class="mw-headline">Monday, 5/28 - Owl Run Plan: SHIFT
LEADER = Suleiman</span>
<ul>
<li>Program
<ul>
<li>TS1 is required!
</li>
<li>Complete CD8 (Compton trigger assessment - background in
Compton) w/ e+ mode
</li>
<li>CD1 PQB setup
</li>
<li>CD2 Mott
</li>
</ul>
</li>
</ul>
<p>Planned Monday, 5/28 - Day Run Plan: SHIFT LEADER = Poelker</p>
<span class="mw-headline"></span>
<ul>
<li>CB16: Characterize PEPPo w/ 3 different momenta:
<ul>
<li>a) Setup centered on T1
</li>
<li>b) Vary spectrometer: map out position on collimators and
downstream viewers
</li>
<li>c) Set spectrometer to best central value
</li>
<li>d) Vary region 1 correctors H/V to map out beam acceptance to
last viewer/FC
</li>
<li>Would like to have dE and E running to also measure beam
energy of electrons
</li>
</ul>
</li>
</ul>
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