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<p class="MsoNormal">Dear collaborators,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">It is just a week left before the RGC run begins.<o:p></o:p></p>
<p class="MsoNormal">All shifts for the beginning of the run are covered. If you have not signed up for shifts yet, please do.<o:p></o:p></p>
<p class="MsoNormal">Reminder to those who have not been to JLab for a long time: register at least 7 days before arrival at JLab and make sure you have enough time to update your training.<o:p></o:p></p>
<p class="MsoNormal">The usual run documentation (COO, ESAD, RSAD, ERG) is posted on the run page:
<a href="https://www.jlab.org/Hall-B/run-web/index_rgc.html">https://www.jlab.org/Hall-B/run-web/index_rgc.html</a><o:p></o:p></p>
<p class="MsoNormal">Everyone who will be taking shifts and/or working in the hall during RGC must read it. The yellow binder with paper copies of these documents and a signature list is in the counting house. When you first come to the counting house you must
acknowledge that you have read and understood these documents by signing the signature list.<o:p></o:p></p>
<p class="MsoNormal">Familiarize yourself with CLAS12 subsystem manuals and procedures on the run wiki:
<a href="https://wiki.jlab.org/clas12-run/index.php/Run_Group_C">https://wiki.jlab.org/clas12-run/index.php/Run_Group_C</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">To subsystem owners: <o:p></o:p></p>
<p class="MsoNormal">Please, review your system documentation and make changes if necessary.
<o:p></o:p></p>
<p class="MsoNormal">Check your system and update its status in HCO. We would like to have most of the system checked and be in a “Ready” state by the end of this week.<o:p></o:p></p>
<p class="MsoNormal">Charge and check your on-call cell phone.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Feel free to contact me if you have any questions.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">PDL for RGC,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-Eugene<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Hallb-engineering <hallb-engineering-bounces@jlab.org>
<b>On Behalf Of </b>Stepan Stepanyan<br>
<b>Sent:</b> Monday, May 30, 2022 09:43<br>
<b>To:</b> CLAS MEMBERS <clas_members@jlab.org>; hallb@jlab.org; Hallb-eng <hallb-engineering@jlab.org><br>
<b>Cc:</b> Achenbach, Prof. Dr. Patrick <achenbach@uni-mainz.de><br>
<b>Subject:</b> [Hallb-engineering] No Hall-B meeting today - here is an update<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Dear all, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:#0E101A">I see many are connected to the Hall-B meeting zoom. There is no meeting today. It is a holiday in the US, and the Lab is closed. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#0E101A"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#0E101A">Here is a short update on the status of the hall and preparations for the run that will start in 10 days:<o:p></o:p></span></p>
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<li class="MsoNormal" style="color:#0E101A;mso-list:l1 level1 lfo1">target has been installed and aligned on the space frame. Cooldown has started<o:p></o:p></li><li class="MsoNormal" style="color:#0E101A;mso-list:l1 level1 lfo1">no noise has been detected in CVT with all the pumps and the target RF running - great news!<o:p></o:p></li><li class="MsoNormal" style="color:#0E101A;mso-list:l1 level1 lfo1">the second pair of the raster magnets are installed on the cart. Connections and the final testing will happen this week<o:p></o:p></li><li class="MsoNormal" style="color:#0E101A;mso-list:l1 level1 lfo1">after a few troubles with the new power supply for the upstream Moller quad, the decision was made to reinstall and use the old one. Supplies for both quads have been tested, polarities checked,
and are ready for the run.<o:p></o:p></li><li class="MsoNormal" style="color:#0E101A;mso-list:l1 level1 lfo1">one of the requested additional LTCCs was installed in Sector 6. The second one is in the hall and will be installed in Sector 2 tomorrow. <o:p></o:p></li><li class="MsoNormal" style="color:#0E101A;mso-list:l1 level1 lfo1">beam dump was open to check the beam blocker limit switched. Both switches have to be replaced engineering group, together with Rad. Cont. are getting ready for repair this week. <o:p></o:p></li><li class="MsoNormal" style="color:#0E101A;mso-list:l1 level1 lfo1">other repair and maintenance work is progressing well on detectors (ECal/FTOF/CTOF/DC)<o:p></o:p></li></ul>
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<p class="MsoNormal"><span style="color:#0E101A"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#0E101A">The biggest news for this week, I think, is the completion of the RICH-II assembly.
<b>Congratulations to the RICH team!</b> The module is now getting ready to be mounted on the A-frame on Tuesday for transportation in the hall on Wednesday. Installation of the detector is scheduled for Thursday. <o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Other updates:<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"ComicSansMS",serif">Calibration status:<o:p></o:p></span></p>
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RG-C: organizing schedule for online calibration<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo2">
RG-F: Request made for next pass-1 review - waiting for scheduling.<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo2">
RG-M: Additional calibration of 3 runs for FTOF getting underway based on recent pass-0 cooking. Work in progress on CVT alignment - alignment constants determined and testing in progress.<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo2">
DC: Systematic studies of pressure-dependence of time-to-distance calibration in progress.<o:p></o:p></li></ul>
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<p class="MsoNormal">Cooking status: RG-M: Cooking to support calibration requests; cooking for CVT alignment tests.<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif">Software:<o:p></o:p></span></p>
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<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l2 level1 lfo3">
<span style="font-family:"Helvetica",sans-serif">DC: large alignment progress, see last week's software meeting: <a href="https://clasweb.jlab.org/wiki/index.php/Agendas,_minutes,_notes_and_related_documents">https://clasweb.jlab.org/wiki/index.php/Agendas,_minutes,_notes_and_related_documents</a><o:p></o:p></span></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l2 level1 lfo3">
<span style="font-family:"Helvetica",sans-serif">CVT: efficiency improvements are in progress<o:p></o:p></span></li></ul>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal">Regards, Stepan <o:p></o:p></p>
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