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People,<br>
<br>
Find the notes below and at
<a class="moz-txt-link-freetext" href="https://halldweb1.jlab.org/wiki/index.php/Private:Hall_D_Staff_Meeting,_January_26,_2015">https://halldweb1.jlab.org/wiki/index.php/Private:Hall_D_Staff_Meeting,_January_26,_2015</a>
.<br>
<br>
-- Mark<br>
__________________________________________________<br>
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Private:Hall D Staff Meeting, January 26, 2015<br>
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Present: Present: Fernando Barbosa, Eugene Chudakov (chair),
Mark Dalton, Alexandre Deur, Hovanes Egiyan, Sergey
Furletov, Mark Ito, Bert Manzlak, Paul Mattione, Sergey
Pozdniakov, Sascha Somov, Simon Taylor, Beni Zihlmann
<br>
<span class="mw-headline" id="Announcements.2C_Eugene"><br>
Announcements, Eugene</span><br>
<ul>
<li> Timesheets from last October require review due to
hours moved from ops to 12 GeV. Please respond to
notifications.
</li>
<li> conference travel
<ul>
<li> last year: invited talks only
</li>
<li> if interested in giving invited or contributed,
see Eugene
</li>
<li> there is an accelerator conference coming up in
Richmond, if interested let Eugene know
</li>
</ul>
</li>
<li> budget
<ul>
<li> more info at Feb. 3 DOE briefing
</li>
<li> Fall run: 6 weeks with 25% uptime, a revised
schedule coming soon
</li>
</ul>
</li>
<li> taking over Yi's former responsibilities
<ul>
<li> solenoid controls: Beni
</li>
<li> PDL: Beni
</li>
<li> PWA work with Carlos: Paul and Justin should
attend meetings, Simon and Mark should continue to
do so
</li>
<li> DIRC:
<ul>
<li> new photo-detectors from Argonne a
prospective project
</li>
<li> Justin can work on Hall B solution
</li>
</ul>
</li>
</ul>
</li>
<li> preparations for run
<ul>
<li> liquid hydrogen target
<ul>
<li> hazard analysis from Tim
</li>
<li> target group will operate target
</li>
</ul>
</li>
<li> goniometer hazard analysis needed
<ul>
<li> diamond heating
</li>
<li> high beam current protection
</li>
<li> measures to keep frame out of the beam
</li>
</ul>
</li>
<li> want to increase maximum electron beam current to
1 microamp
</li>
<li> want to increase solenoid current to 1300 A (to
1350 A for hysteresis)
</li>
<li> Alexandre will start as run coordinator, David
will take over, Mark I. will backup
</li>
</ul>
</li>
</ul>
<br>
<span class="mw-headline" id="Electronics.2C_Fernando">Electronics,
Fernando</span><br>
<ul>
<li> HVBs for CDC all installed, finishing cabling
<ul>
<li> will start powering HV and LV as test
</li>
<li> then connect signal cables, look at signals
</li>
<li> then turn on gas system
</li>
<li> run with pulser in FADC, scan all channels
</li>
</ul>
</li>
<li> cables for polarimeter
<ul>
<li> little advance notice
</li>
<li> 32 + 24 coax cables needed, will exhaust spares
on hand
</li>
<li> ASU will bring power supply
</li>
</ul>
</li>
<li> master oscillator
<ul>
<li> tagger and hall fibers in
</li>
<li> next chassis will come from Accel.
</li>
<li> cables being ordered, from Accel. chassis to MO
module
</li>
<li> MO module working, USM design
<ul>
<li> Alam Toro working on firmware, can run
without it if pressed
</li>
<li> can step down by factor 128
</li>
<li> for F1, under 5 MHz needed
</li>
</ul>
</li>
</ul>
</li>
<li> F125s: 25 modules came in, only 5% failure rate
</li>
</ul>
<br>
<span class="mw-headline" id="Run_Planning.2C_Alexandre">Run
Planning, Alexandre</span><br>
<ul>
<li> will use same structure for plan as for Fall
</li>
<li> times, goals similar
</li>
<li> detailed plan being put together
<ul>
<li> so far: target, electron beam, photon beam
</li>
<li> major items:
<ol>
<li> target
</li>
<li> diamond
</li>
<li> 1300 A
</li>
</ol>
</li>
<li> items of note:
<ol>
<li> DAQ, block mode, 20 kHz
</li>
<li> RF timing
</li>
<li> TAC
</li>
<li> polarimeter
</li>
</ol>
</li>
<li> other items:
<ol>
<li> complete detector calibration and alignment
</li>
<li> trigger optimization
</li>
<li> pair spectrometer trigger
</li>
<li> suppress FCAL noise
</li>
<li> beam stability and fast feed-back
</li>
<li> monitoring transmission through collimators
</li>
</ol>
</li>
</ul>
</li>
</ul>
<br>
<span class="mw-headline" id="Safety.2C_Burt">Safety, Burt</span><br>
<ul>
<li> will to do evaluation of mandatory hearing protection
zone on platform next Wed.
<ul>
<li> will break vacuum window on pair spectrometer
vacuum box
</li>
<li> noise level will be measured
</li>
<li> request comes from engineering group
</li>
</ul>
</li>
</ul>
<br>
<span class="mw-headline" id="MCP_DIRC_Read-Out.2C_Beni">MCP
DIRC Read-Out, Beni</span><br>
<ul>
<li> Carl Zorn will take lead on project
</li>
<li> Beni will supervise student and post-doc
</li>
<li> Post-doc may need laser training
</li>
</ul>
<br>
<span class="mw-headline"
id="Science_Magazine_and_GlueX.2C_Fernando">Science
Magazine and GlueX, Fernando</span><br>
<ul>
<li> article in Science on JLab featured picture of CDC
</li>
</ul>
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