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I heard and was on call.</div>
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Denny and Nick was able to solve on temporary basis.</div>
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We need to have better solution (back up) to mitigate the risk in the future. </div>
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Denny - will be getting all together (buying components) as we have discussed. Also suggest some to evaluate the root cause why this failed. From the location and time, i presume it could be 1. rad damage 2. magnetic field. </div>
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But with magnetic field is highly unlikely and thus point me towards rad damage (may be i am wrong). I will suggest to please involve someone to access the rad level at that location if any...!</div>
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Please also talk to Dave K for his insight.</div>
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Regards</div>
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Probir</div>
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<div><strong>Probir K Ghoshal</strong>, PhD.<br>
Senior Magnet Engineer<br>
Magnet Group, Experimental Nuclear Physics<br>
<em>Jefferson Lab<br>
600 Kelvin Drive, Suite #3, 55C<br>
Room #2531, Newport News, VA 23606 (USA)</em><br>
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Telephone: 757 269 6702 (office)<br>
Mobile: 518 334 3289<br>
email: ghoshal@jlab.org</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Eugene Pasyuk <pasyuk@jlab.org><br>
<b>Sent:</b> Tuesday, February 8, 2022 8:08 AM<br>
<b>To:</b> Probir Ghoshal <ghoshal@jlab.org><br>
<b>Cc:</b> Esr-users@jlab.org <esr-users@jlab.org><br>
<b>Subject:</b> RE: [Esr-users] [New Logentry] Ramp Solenoid and Torus down to 0 A</font>
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<p class="x_MsoNormal">Thank you, Probir.</p>
<p class="x_MsoNormal">Yes, the run was good. We only had one major hiccup with the vacuum pump on the torus.</p>
<p class="x_MsoNormal">The next run is coming in June.</p>
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<p class="x_MsoNormal">-Eugene</p>
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<p class="x_MsoNormal"><b>From:</b> Probir Ghoshal <ghoshal@jlab.org> <br>
<b>Sent:</b> Tuesday, February 08, 2022 08:00<br>
<b>To:</b> Eugene Pasyuk <pasyuk@jlab.org>; esr-users@jlab.org<br>
<b>Subject:</b> Re: [Esr-users] [New Logentry] Ramp Solenoid and Torus down to 0 A</p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">Very good Eugene.</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">Congratulations to the entire HALLB team for running the magnets successfully.</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">Regards</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">Probir</span></p>
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<p class="x_MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> Esr-users <<a href="mailto:esr-users-bounces@jlab.org">esr-users-bounces@jlab.org</a>> on behalf of
<a href="mailto:pasyuk@jlab.org">pasyuk@jlab.org</a> <<a href="mailto:pasyuk@jlab.org">pasyuk@jlab.org</a>><br>
<b>Sent:</b> Tuesday, February 8, 2022 7:00 AM<br>
<b>To:</b> <a href="mailto:esr-users@jlab.org">esr-users@jlab.org</a> <<a href="mailto:esr-users@jlab.org">esr-users@jlab.org</a>><br>
<b>Subject:</b> [Esr-users] [New Logentry] Ramp Solenoid and Torus down to 0 A</span>
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<h1><span style="font-size:12.0pt; font-family:"Trebuchet MS",sans-serif"><a href="https://logbooks.jlab.org/entry/3984043">Ramp Solenoid and Torus down to 0 A</a>
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<li class="x_MsoNormal" style=""><span style="font-size:6.5pt; font-family:"Trebuchet MS",sans-serif"><a href="https://logbooks.jlab.org/entry/3984043/edit?destination=email/send">Edit</a></span></li><li class="x_MsoNormal" style=""><span style="font-size:6.5pt; font-family:"Trebuchet MS",sans-serif"><a href="https://logbooks.jlab.org/entry/3984043/delete?destination=email/send">Delete</a></span></li></ul>
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<p class="x_xauthor-datetime1"><span style="font-size:5.5pt; font-family:"Trebuchet MS",sans-serif">Lognumber
<a href="https://logbooks.jlab.org/entry/3984043">3984043</a>. Submitted by <a href="https://logbooks.jlab.org/user/pasyuk">
pasyuk</a> on <a href="https://logbooks.jlab.org/entries?start_date=1644317959&end_date=1644325159&book=HBLOG&book=HBSOLENOID&book=HBTORUS">
Tue, 02/08/2022 - 06:59</a>. </span></p>
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<b><span style="font-size:9.5pt">Logbooks: </span></b></p>
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<span style="font-size:9.5pt"><a href="https://logbooks.jlab.org/book/hblog">HBLOG</a>
<a href="https://logbooks.jlab.org/book/hbsolenoid">HBSOLENOID</a> <a href="https://logbooks.jlab.org/book/hbtorus">
HBTORUS</a></span></p>
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