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<span style="font-size:12.0pt;font-family:"Times New Roman",serif">Minutes of Hall A Group Meeting: March 2, 2021<o:p> </o:p></span></p>
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<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">Thia Keppel<o:p> </o:p></span></li><ol style="margin-bottom:0in">
<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">Senior Staff Meeting<o:p> </o:p></span></li><ol style="margin-bottom:0in">
<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">No senior staff meeting next week<o:p> </o:p></span></li><li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">Accelerator<o:p> </o:p></span></li><ol style="margin-bottom:0in">
<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">PSS tests in injector<o:p> </o:p></span></li><li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">SRF work in North Linac<o:p> </o:p></span></li></ol>
<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">UITF planning HDIce run this week
<o:p> </o:p></span></li><li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">3/16 Division D&I meeting<o:p> </o:p></span></li><li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">Engineering<o:p> </o:p></span></li><ol style="margin-bottom:0in">
<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">ESR cooling magnets in Halls<o:p> </o:p></span></li><li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">CHL-2K cold box on schedule<o:p> </o:p></span></li><li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">Helping with Hall A Compton water lock request<o:p> </o:p></span></li></ol>
<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">Theory<o:p> </o:p></span></li><ol style="margin-bottom:0in">
<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">Gluon gpds on the lattice, “breakthrough”<o:p> </o:p></span></li></ol>
<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">CST<o:p> </o:p></span></li><ol style="margin-bottom:0in">
<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">High performance data facility maybe in FY22 budget<o:p> </o:p></span></li></ol>
<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">EH&S<o:p> </o:p></span></li><ol style="margin-bottom:0in">
<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">No new positive COVID cases last week<o:p> </o:p></span></li><li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">Expecting DOE COVID safety plan to roll out<o:p> </o:p></span></li></ol>
<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">Facilities<o:p> </o:p></span></li><ol style="margin-bottom:0in">
<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">Fire suppression work in accelerator<o:p> </o:p></span></li><li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">Hall A crane support<o:p> </o:p></span></li></ol>
<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">Do your property validation!<o:p> </o:p></span></li><li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">New travel policy in place, streamlined (see weekly briefs)<o:p> </o:p></span></li><li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">Foreign sponsored activities do NOT apply to users! They revised mail this week<o:p> </o:p></span></li><li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">Onboarding initiative coming up (new hires)<o:p> </o:p></span></li><li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">New DOE Secretary Granholm –meet and greets being set up<o:p> </o:p></span></li></ol>
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<li><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif">Robin Wines<o:p> </o:p></span></li><ol style="margin-bottom:0in">
<li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">SBS<o:p> </o:p></span></li><ol style="margin-bottom:0in">
<li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">Analyzed the blue platform for modification
<o:p> </o:p></span></li><li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">Placed machine shop order for alignment cartridges- ones we have will not work for GEN-RP detectors
<o:p> </o:p></span></li><li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">Analyzing the CDet and ECal supports,
<o:p> </o:p></span></li><li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">Reviewing floor plate layouts and what’s in house
<o:p> </o:p></span></li><li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">Continue on ECal platform details
<o:p> </o:p></span></li><li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">Finished design and checking of xyz adjuster for GEn beamline
<o:p> </o:p></span></li><li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">Detailing compass prototype for GEn target
<o:p> </o:p></span></li><li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">Working with vendors for sieve plate estimates and supporting installation activities<o:p> </o:p></span></li></ol>
<li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">Moller-<o:p> </o:p></span></li><ol style="margin-bottom:0in">
<li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">Working on shielding in target region
<o:p> </o:p></span></li><li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">Pion donut support
<o:p> </o:p></span></li><li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">Detector A-frame support and beamline<o:p> </o:p></span></li></ol>
<li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">SoLID
<o:p> </o:p></span></li><ol style="margin-bottom:0in">
<li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">Continue on coil test preparations<o:p> </o:p></span></li></ol>
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<li><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:black">Jessie Butler<o:p> </o:p></span></li><ol style="margin-bottom:0in">
<li><span class="normaltextrun">Hall A crane is still down…<o:p> </o:p></span></li><li><span class="normaltextrun">Continue 2MVA power upgrade work (FML) – on-going</span><o:p> </o:p></li><li><span class="normaltextrun">Inspect cables in area of ground water leak repair in Compton area – several groups involved</span><o:p> </o:p></li><li><span class="normaltextrun">Completed welding</span><span class="eop"> extension to Big Bite carriage</span><o:p> </o:p></li><li><span class="normaltextrun">Continue redoing hangers for LCW system<o:p> </o:p></span></li><li><span class="normaltextrun">Continue working on Counting House renovation – on-going</span><o:p> </o:p></li><li><span class="normaltextrun">Continue cutting shims that is needed for building and leveling upstream shielded bunker</span><o:p> </o:p></li><li><span class="normaltextrun">Clear interferences underneath pivot and clear floor space for moving RHRS</span><o:p> </o:p></li><li><span class="normaltextrun">Drill holes for SBS tower base<o:p> </o:p></span></li><li><span class="normaltextrun">Continue working on Counting House renovation<o:p> </o:p></span></li><li>Subcontractor (Barnhart) moved BB magnet<o:p> </o:p></li><li>We began moving RHRS around toward rollup door. <o:p> </o:p></li></ol>
<li>Jack Segal<o:p> </o:p></li><ol style="margin-bottom:0in">
<li>INFN GEM Detectors <o:p> </o:p></li><ol style="margin-bottom:0in">
<li>Installation in BigBite Detector<o:p> </o:p></li></ol>
<li>INFN GEM layers installed on rails in frame on BigBite detector.<o:p> </o:p></li><ol style="margin-bottom:0in">
<li>A series of practice lifts and installations were performed prior to lifting actual GEM layers.<o:p> </o:p></li></ol>
<li>GEM layers flowing UHP nitrogen using independent gas manifold, will be hooked up to prototype gas rack when ready for Argon/CO2.<o:p> </o:p></li><li>BigBite Detector Weldment – grounding<o:p> </o:p></li><ol style="margin-bottom:0in">
<li>Installed 1AWG ground cable to BigBite weldment. Connected to building earth ground.<o:p> </o:p></li><li>Needs additional mounting hole drilled, currently clamped on for now.<o:p> </o:p></li><li>Ordered 2AWG cable and lugs for grounding of relay racks.<o:p> </o:p></li></ol>
<li>GEM DAQ –Cabling<o:p> </o:p></li><ol style="margin-bottom:0in">
<li>HDMI Cables in INFN lab being prepared for transport to TEDF. (Ezekiel)<o:p> </o:p></li><li>Wire baskets delivered to TEDF for coiling excess HDMI cables next to DAQ rack.<o:p> </o:p></li><li>Cabling in GEM layer side cable trays remounted and pulled down enough for attachment of cable mounting blocks to welded plate on GEM frame.<o:p> </o:p></li></ol>
<li>GEM DAQ Relay Rack - Ethernet Patch Panels<o:p> </o:p></li><ol style="margin-bottom:0in">
<li>Received 16-channel 1U ethernet patch panels, awaiting delivery of 175ft Cat 6 cables from CDW.<o:p> </o:p></li><li>Cables will be bundled and inserted in tubing for run in cable trays.<o:p> </o:p></li><li>Will extend from BigBite DAQ weldment to GEM DAQ relay rack.<o:p> </o:p></li></ol>
<li>GEM Gas in TEDF<o:p> </o:p></li><ol style="margin-bottom:0in">
<li>Evaluation of gas storage options in high bay of TEDF.<o:p> </o:p></li><li>Currently have a 2-cylinder rack along with a number of carts, another 2-cylinder rack on hand but needs wall space.<o:p> </o:p></li></ol>
<li>BigBite Timing Hodoscope - Dry Air Supply<o:p> </o:p></li><ol style="margin-bottom:0in">
<li>Received Clippard miniature brass manifolds and barb fittings for connection of dry air tubing to PMT bases. Each base currently has 24" of black 1/16ID poly tubing pre-installed. Manifolds have (12) connections, each to be connected with black 1/4" poly
tubing and Legris push fittings.<o:p> </o:p></li><li>Plans to construct dry air flowmeter panel with needle valve and 3 PSI monometer. (As per Albert's schematic)<o:p> </o:p></li></ol>
<li>ECAL Thermal Test Enclosure – Construction<o:p> </o:p></li><ol style="margin-bottom:0in">
<li>In the process of installing laser cut Kapton heat shield sheets to light guides.<o:p> </o:p></li><li>Foamglas insulation blocks need to be wrapped in foil and holes drilled in top layer for suspension rod insertion.<o:p> </o:p></li><li>Qty (9) modules currently on aluminum plate on blocks, will be suspended on threaded rods after top insulation block installed. (rods pass through insulation block)<o:p> </o:p></li></ol>
<li>Ethan finished refurbishing the head of a Hall A RGA. He ran the Right Arm halfway to the truck ramp. The move went better than the Left Arm, we'll have to look into that a bit more. Various assorted small tasks.<o:p> </o:p></li><li>I did not get to touch base with Joe this week.<o:p> </o:p></li><li>I do not remember a fraction of what I did this week. I did finally get a chance to look at the BB signals in the TEDF. They had some grounding issues that Chuck<br>
took care of. Noise coming from the NINO cards. Raising the threshold cut the noise. They will need to take a few runs to find where they are able to set the<br>
thresholds at. An ongoing effort.<o:p> </o:p><br>
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<o:p> </o:p></li></ol>
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<b><i>Stephanie Tysor</i></b></div>
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Hall A/C Administrative Assistant</div>
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Physics Division<br>
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Jefferson Lab</div>
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757-269-6005<br>
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