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<h1 class="title">B-team Meeting Notes</h1>
<div id="outline-container-1" class="outline-2">
<h2 id="sec-1"><span class="section-number-2">1</span> <span
class="timestamp-wrapper"> <span class="timestamp">2010-11-03
Wed 14:00</span></span> Agenda–Notes </h2>
<div class="outline-text-2" id="text-1">
</div>
<div id="outline-container-1_1" class="outline-3">
<h3 id="sec-1_1"><span class="section-number-3">1.1</span>
Optics-On-Call Summary <span class="tag"><span
class="Alex">Alex</span></span></h3>
<div class="outline-text-3" id="text-1_1">
<p>Alex will summaries machine and beam optics issues over
the past seven
days. </p>
<ul>
<li>
Uneventful week
</li>
<li>
Instrumentation issues with HallB
</li>
<li>
HallC valve closed during beam delivery
<ul>
<li>
Valve is now "unmaskable"
</li>
</ul>
</li>
</ul>
<ul>
<li id="sec-1_1_1">Discussion <br>
<ul>
<li id="sec-1_1_1_1">pA runs in Hall-B <br>
<ul>
<li>
HallB has been unable to take low current
calibration runs due to
unacceptable backgrounds and unstable current at
these low currents.
</li>
<li>
present slit is at 17.5
</li>
<li>
present attenuator is at 100'ish
</li>
<li>
Presently the attenuator is being used to lower
the current.
Suggestion is to use the slit to lower the
current. So far OPS has
been reluctant to use this approach.
</li>
<li>
Adjust phase appropriately.
</li>
<li>
Do not expect current lock to work with
attenuator below 100.
</li>
</ul>
</li>
</ul>
<ul>
<li id="sec-1_1_1_2">M56 in the machine <br>
<ul>
<li>
Pathlength calibration revealed that there was a
small amount of M56
in the machine. Starts in Arc1.
</li>
<li>
Should we fix this? yes!
</li>
<li>
proposal is to tack this on to the end of the
Wien setup/150μ A
injector setup tomorrow.
<ul>
<li>
Spata will lead the effort.
</li>
<li>
This activity will take place if the
Vertical Wien setup goes
exceptionally well tomorrow.
</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
<div id="outline-container-1_2" class="outline-3">
<h3 id="sec-1_2"><span class="section-number-3">1.2</span>
Beam Studies Report </h3>
<div class="outline-text-3" id="text-1_2">
<ul>
<li id="sec-1_2_1">Two wien calibration <span
class="tag"><span class="Poelker">Poelker</span></span><br>
Calibration with 130keV incoming KE. Final setup
tomorrow for QWeak.
<ul>
<li>
when does QWeak really need polarized beam?
</li>
<li>
Two Wien flipper will not work at energies higher
than 130keV.
</li>
<li>
would like a plan from QWeak on spin orientation
configurations for
the upcoming months. </li>
</ul>
</li>
</ul>
<ul>
<li id="sec-1_2_2">QWeak Inj. studies <span class="tag"><span
class="Dalton">Dalton</span></span><br>
<ul>
<li>
spent time searching for 60Hz noise in Injector.
Data collected,
analysis is on going. </li>
<li>
Hope to provide some plots soon. Plots will be
posted in the POLOG.
</li>
<li>
Need more in the injector for Cathode scans. Will
request 1/2 shift
every other week. </li>
</ul>
</li>
</ul>
<ul>
<li id="sec-1_2_3">BPM R&D Report <span class="tag"><span
class="Spata">Spata</span></span><br>
Summary of previous beam studies and 9am meeting on the
proposed
stripline BPM design.
Meeting on the stripline design for ArcA and Hall-D.
<ul>
<li>
estimates of the impact of synchrotron radiation
appear to be
negligible. 0.1% change in the signal pick up. </li>
<li>
requested a large gap +/- 5mm
</li>
<li>
Still one more design/fab iteration is needed before
submitted
procurement packages.
</li>
<li>
tech-note preparation is in progress. </li>
<li>
develop a plan to install one or two in Arc9 during
the 6-month
down. </li>
</ul>
</li>
</ul>
</div>
</div>
<div id="outline-container-1_3" class="outline-3">
<h3 id="sec-1_3"><span class="section-number-3">1.3</span>
AHLA FY11 Projects <span class="tag"><span class="Arne">Arne</span></span></h3>
<div class="outline-text-3" id="text-1_3">
<p>Summary of the AHLA projects for FY11. Below is the table
of all the
projects presently known, planned and unplanned. Some
projects have
"OPS Charters" written and having a charter accommodates
the planning
process. The OPS charter template is attached.
</p>
<ul>
<li id="sec-1_3_1">OPS Project Table <br>
<table frame="hsides" rules="groups" border="2"
cellpadding="6" cellspacing="0">
<caption></caption>
<colgroup><col align="left"><col align="left"><col
align="left"><col align="left"><col align="left">
</colgroup>
<thead>
<tr>
<th scope="col">Owner</th>
<th scope="col">Project</th>
<th scope="col"></th>
<th scope="col">Years</th>
<th scope="col">Resources</th>
</tr>
</thead>
<tbody>
<tr>
<td>AHLA</td>
<td><a
href="./leaders/data/charters/AHLA_Full_Energy_Injector_Upgrade_charter.docx">Full<sub>Inj</sub><sub>Energy</sub><sub>Upgrade</sub></a></td>
<td>AIP</td>
<td>FY11/FY12/FY113</td>
<td>AHLA/SRF/Controls/ENG</td>
</tr>
<tr>
<td>AHLA</td>
<td><a href="cid:part1.07050405.03060507@jlab.org">6GeV<sub>model</sub></a></td>
<td></td>
<td>FY11/FY12</td>
<td>AHLA/CASA</td>
</tr>
<tr>
<td>AHLA</td>
<td><a href="cid:part2.09050700.07020607@jlab.org">CDEV<sub>Replacement</sub></a></td>
<td></td>
<td>FY11</td>
<td>AHLA/Controls</td>
</tr>
<tr>
<td>AHLA</td>
<td><a
href="./leaders/data/charters/AHLA_CED_charter.docx">CED</a></td>
<td></td>
<td>FY11</td>
<td>AHLA/Controls/ENG</td>
</tr>
<tr>
<td>AHLA</td>
<td><a href="cid:part3.02000204.00080200@jlab.org">CED<sub>Conversion</sub></a></td>
<td></td>
<td>FY11/FY12/FY13</td>
<td>AHLA</td>
</tr>
<tr>
<td>AHLA</td>
<td>Optical Diffraction Monitor</td>
<td></td>
<td>FY12/FY13</td>
<td>AHLA/CASA/Eng/Controls</td>
</tr>
<tr>
<td></td>
<td>Krest</td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td>Lem Upgrade (heat management)</td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
<tbody>
<tr>
<td>AHLA/Cntrl/Eng</td>
<td>Timing System</td>
<td>AIP</td>
<td>FY14/FY15/FY16</td>
<td></td>
</tr>
</tbody>
<tbody>
<tr>
<td>Controls</td>
<td><a
href="./leaders/data/charters/Controls_DisplayWallReplacement_charter.doc">DisplayWallReplacement</a></td>
<td></td>
<td>FY11</td>
<td>Controls</td>
</tr>
<tr>
<td>Controls</td>
<td><a
href="./leaders/data/charters/Controls_ImageManagement_charter.doc">ImageManagement</a></td>
<td>AIP</td>
<td>FY11</td>
<td>Controls/ENG?</td>
</tr>
<tr>
<td>Controls</td>
<td><a
href="./leaders/data/charters/Controls_InsertionDeviceManager_charter.doc">InsertionDeviceManager</a></td>
<td></td>
<td>FY11/FY12</td>
<td>Controls/ENG</td>
</tr>
<tr>
<td>Controls</td>
<td><a
href="./leaders/data/charters/Controls_NextGenerationIocHardware_charter.doc">NextGenerationIocHardware</a></td>
<td></td>
<td>FY11</td>
<td>Controls</td>
</tr>
<tr>
<td></td>
<td>Capfast Replacement</td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td>Low Level Controls CED integration</td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td>Low Level Software Management</td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td>C25/C50 RF micro-controller
compilation/linking</td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
<tbody>
<tr>
<td>O'bility</td>
<td>MCC conference room technology</td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td>Documentation Vision out to 2020</td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td>Sing the 8am electric</td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
<tbody>
<tr>
<td>Eng</td>
<td>CAMAC → VME (East Arc)</td>
<td></td>
<td>FY10/FY11</td>
<td>Controls</td>
</tr>
<tr>
<td></td>
<td>New Harp electronics design</td>
<td></td>
<td>FY11</td>
<td>Controls</td>
</tr>
<tr>
<td></td>
<td>BLM HV upgrade</td>
<td></td>
<td>FY10/FY11</td>
<td>Controls</td>
</tr>
<tr>
<td></td>
<td>TRIM-II</td>
<td></td>
<td>FY10</td>
<td></td>
</tr>
<tr>
<td></td>
<td>Analog Blocks</td>
<td></td>
<td>FY10</td>
<td></td>
</tr>
<tr>
<td></td>
<td>Replace existing low-level RF hardware</td>
<td>AIP?</td>
<td></td>
<td>Controls</td>
</tr>
<tr>
<td></td>
<td>PSS Upgrade</td>
<td></td>
<td>FY11/FY12?</td>
<td></td>
</tr>
<tr>
<td></td>
<td>New Klystrons</td>
<td></td>
<td>FY12/FY13</td>
<td></td>
</tr>
</tbody>
<tbody>
<tr>
<td>OPS</td>
<td>training system</td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
<tbody>
<tr>
<td></td>
<td>Status Marquee</td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td>AIP</td>
<td>Beam Dump Diagnostics</td>
<td>AIP</td>
<td>FY14/FY15</td>
<td></td>
</tr>
<tr>
<td>Source</td>
<td>Positron</td>
<td></td>
<td>FY11</td>
<td>Eng/Controls/Physics</td>
</tr>
<tr>
<td>HallA</td>
<td>g2p</td>
<td></td>
<td>FY11</td>
<td>Eng/Controls</td>
</tr>
</tbody>
</table>
</li>
</ul>
<ul>
<li id="sec-1_3_2">Discussion of elegant model <br>
A sequential approach, doing one arc or one pass at a
time with one
week of integration results in the elegant modeling
effort finish just
in time for the May 13 end of the run. See Gantt chart
below:</li>
<li id="sec-1_3_2"> <img
src="cid:part4.08090502.04080300@jlab.org" alt=""
height="319" width="765">
<p>
Perhaps a more efficient use of beam time would be to
use the first
few days after the winter down to download and tune
the entire
machine. A plan based on this approach will be
developed. The
drawback of this approach is that lessons learned in
Arc1 cannot be
fed into the Arc2 plan. </p>
<p>
A new plan will be developed with the goal of loading
a complete set
of optics based on elegant model after the winter
down.
</p>
</li>
</ul>
</div>
</div>
<div id="outline-container-1_4" class="outline-3">
<h3 id="sec-1_4"><span class="section-number-3">1.4</span>
CASA FY11 Projects <span class="tag"><span class="CASA">CASA</span></span></h3>
<div class="outline-text-3" id="text-1_4">
<p>Discussion of CASA FY11 Projects and needs.
</p>
<ul>
<li>
BBU studies
</li>
<li>
Chebyshev multipole extraction
</li>
</ul>
<ul>
<li id="sec-1_4_1">No time for discussion. Comments: <br>
Next week CASA should present a list of CEBAF related
projects that
they would like to see action on in FY11 (and FY12).
<p>
Comment: A charter on the development of tools
required to make MO
frequency adjustment for pathlength controls should be
written. </p>
</li>
</ul>
</div>
</div>
<div id="outline-container-1_5" class="outline-3">
<h3 id="sec-1_5"><span class="section-number-3">1.5</span>
6-month down restoration discussion and team formation <span
class="tag"><span class="CASA">CASA</span> <span
class="SOURCE">SOURCE</span> <span class="ENG">ENG</span> <span
class="OPS">OPS</span></span></h3>
<div class="outline-text-3" id="text-1_5">
<p>Discussion how to prepare for restoration after the
6-month down and
successful positron experiment. This discussion did not
take place.
It will take place next week.
</p>
</div>
</div>
</div>
<div id="postamble">
<p class="date"> Date: 2010-11-03 16:31:49 EDT</p>
<p class="creator">HTML generated by org-mode 7.01trans in emacs
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<pre class="moz-signature" cols="72">--
Arne Freyberger
Director of Accelerator Operations
Jefferson Lab Office: (757) 269-6268
12000 Jefferson Avenue Cell: (757) 876-6289
Newport News, VA 23606 Email: <a class="moz-txt-link-abbreviated" href="mailto:freyberg@jlab.org">freyberg@jlab.org</a>
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