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Hi Holly,</div>
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I caught up with Ezekiel. He made sure hv was off. I ended up swapping out a gas flow sensor. The system is back to normal. </div>
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Marc</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Holly Szumila-Vance <hszumila@jlab.org><br>
<b>Sent:</b> Tuesday, November 15, 2022 11:21 AM<br>
<b>To:</b> Marc Mcmullen <mcmullen@jlab.org>; Provakar Datta <provakar.datta@uconn.edu>; dsg-halla_gem@jlab.org <dsg-halla_gem@jlab.org><br>
<b>Subject:</b> Re: [Dsg-halla_gem] [EXTERNAL] BigBite GEM gas monitoring Channel 03</font>
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<p class="x_MsoNormal">Hi Marc,</p>
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<p class="x_MsoNormal">I think if it is just cycling the rPi and it’s a few seconds then the detectors are fine.
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<p class="x_MsoNormal"><b><span style="font-size:12.0pt; color:black">From: </span>
</b><span style="font-size:12.0pt; color:black">Dsg-halla_gem <dsg-halla_gem-bounces@jlab.org> on behalf of Holly Szumila-Vance via Dsg-halla_gem <dsg-halla_gem@jlab.org><br>
<b>Reply-To: </b>Holly Szumila-Vance <hszumila@jlab.org><br>
<b>Date: </b>Tuesday, November 15, 2022 at 11:20 AM<br>
<b>To: </b>Marc Mcmullen <mcmullen@jlab.org>, Provakar Datta <provakar.datta@uconn.edu>, "dsg-halla_gem@jlab.org" <dsg-halla_gem@jlab.org><br>
<b>Subject: </b>Re: [Dsg-halla_gem] [EXTERNAL] BigBite GEM gas monitoring Channel 03</span></p>
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<p class="x_MsoNormal">Hi Marc, </p>
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<p class="x_MsoNormal">Are you just recycling the rPi? We did not take precautions for the gas at the chambers. Is this on the matter of a few seconds?</p>
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<p class="x_MsoNormal"><b><span style="font-size:12.0pt; color:black">From: </span>
</b><span style="font-size:12.0pt; color:black">Marc Mcmullen <mcmullen@jlab.org><br>
<b>Date: </b>Tuesday, November 15, 2022 at 11:01 AM<br>
<b>To: </b>Provakar Datta <provakar.datta@uconn.edu>, "dsg-halla_gem@jlab.org" <dsg-halla_gem@jlab.org><br>
<b>Cc: </b>Holly Szumila-Vance <hszumila@jlab.org><br>
<b>Subject: </b>Re: [EXTERNAL] [Dsg-halla_gem] BigBite GEM gas monitoring Channel 03</span></p>
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<p class="x_MsoNormal"><span style="font-family:"inherit",serif">Hi Holly, </span></p>
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<p class="x_MsoNormal"><span style="font-family:"inherit",serif">I’m just checking to make sure the BB is safe for me to do testing. During testing the gas supply will be subject for shut off on multiple channels. Please let me know if this is ok. </span></p>
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<p class="x_MsoNormal"><span style="font-family:"inherit",serif">Marc</span></p>
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<p class="x_MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> Provakar Datta <provakar.datta@uconn.edu><br>
<b>Sent:</b> Tuesday, November 15, 2022 9:27 AM<br>
<b>To:</b> Marc Mcmullen <mcmullen@jlab.org><br>
<b>Cc:</b> Holly Szumila-Vance <hszumila@jlab.org><br>
<b>Subject:</b> Re: [EXTERNAL] [Dsg-halla_gem] BigBite GEM gas monitoring Channel 03</span>
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<p class="x_MsoNormal">Hi Marc, </p>
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<p class="x_MsoNormal">The target group needs to do some tests before we can sweep the hall. They thought that they will be done by 8:30 but it’s taking longer. So, I have doubt that we will be in controlled access by 10. Right now, 10:30 pm seems more reasonable.
Please plan accordingly. I’ll let you know if anything changes. Sorry for the inconvenience. </p>
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Best regards,<br>
Provakar<br>
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---<br>
Provakar Datta<br>
Graduate Assistant<span class="x_xapple-tab-span"> </span><br>
University of Connecticut<br>
<a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__physics.uconn.edu_person_provakar-2Ddatta_&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=hQJSuIbzwxGOX7LZbVne0gHeC6U5hlDu99LTH_I02ZM&m=11f6yv7F0_JyBcQDRhVbsMudyf9tIuVlduKv-h9y0-0_q13mtzZqjyKdq_OvuN1w&s=tbOgWDxZRXIm8LY103PqUnzXSSUBz4Wm1RIG1MXiII0&e=">GS
403</a>, Storrs, CT 06269</span></p>
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<p class="x_MsoNormal">On Nov 14, 2022, at 8:32 PM, Marc Mcmullen <<a href="mailto:mcmullen@jlab.org">mcmullen@jlab.org</a>> wrote:</p>
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<p class="x_MsoNormal" style="line-height:12.0pt; background:#FFEB9C">*Message sent from a system outside of UConn.*</p>
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<p class="x_MsoNormal">Thanks</p>
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<p class="x_MsoNormal"><b>From:</b> Provakar Datta <<a href="mailto:provakar.datta@uconn.edu">provakar.datta@uconn.edu</a>><br>
<b>Sent:</b> Monday, November 14, 2022 6:55 PM<br>
<b>To:</b> Marc Mcmullen <<a href="mailto:mcmullen@jlab.org">mcmullen@jlab.org</a>><br>
<b>Cc:</b> Holly Szumila-Vance <<a href="mailto:hszumila@jlab.org">hszumila@jlab.org</a>><br>
<b>Subject:</b> [EXTERNAL] Re: [Dsg-halla_gem] BigBite GEM gas monitoring Channel 03
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<p class="x_MsoNormal">Hi Marc, </p>
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<p class="x_MsoNormal">I will put you on the schedule for 10 am tomorrow. RadCon should be done with the survey by then but I am not 100% certain. So, you may have to wait for a few minutes before you can go in, please plan accordingly.</p>
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Best regards,<br>
Provakar<br>
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---<br>
Provakar Datta<br>
Graduate Assistant<span class="x_xxapple-tab-span"> </span><br>
University of Connecticut<br>
<a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__physics.uconn.edu_person_provakar-2Ddatta_&d=DwMCAg&c=CJqEzB1piLOyyvZjb8YUQw&r=hQJSuIbzwxGOX7LZbVne0gHeC6U5hlDu99LTH_I02ZM&m=zDB2x6_5IRXsmYBYd169r3PSBpY85HE7pM2FFwmdUW9i8DfzHnIKJea__ZtPUaub&s=WXl7IVEFr4IuZ0MOR0YTAC2Zilkn_x2kVu4ICsNGDjs&e=">GS
403</a>, Storrs, CT 06269</p>
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<p class="x_MsoNormal">On Nov 14, 2022, at 1:42 PM, Provakar Datta <<a href="mailto:provakar.datta@uconn.edu">provakar.datta@uconn.edu</a>> wrote:</p>
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<p class="x_MsoNormal">Hi Marc, </p>
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<p class="x_MsoNormal">I am still waiting on RadCon to let me know around what time they will be able to survey the hall. Once I know that I will be able to give you a proper time frame.</p>
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<p class="x_MsoNormal">Do you have a preference of time? Also, how long do you expect to be in the hall?</p>
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Best regards,<br>
Provakar<br>
<br>
---<br>
Provakar Datta<br>
Graduate Assistant<span class="x_xxapple-tab-span"> </span><br>
University of Connecticut<br>
<a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__physics.uconn.edu_person_provakar-2Ddatta_&d=DwMCAg&c=CJqEzB1piLOyyvZjb8YUQw&r=hQJSuIbzwxGOX7LZbVne0gHeC6U5hlDu99LTH_I02ZM&m=zDB2x6_5IRXsmYBYd169r3PSBpY85HE7pM2FFwmdUW9i8DfzHnIKJea__ZtPUaub&s=WXl7IVEFr4IuZ0MOR0YTAC2Zilkn_x2kVu4ICsNGDjs&e=">GS
403</a>, Storrs, CT 06269</p>
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<p class="x_MsoNormal">On Nov 14, 2022, at 1:11 PM, Marc Mcmullen <<a href="mailto:mcmullen@jlab.org">mcmullen@jlab.org</a>> wrote:</p>
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<p class="x_MsoNormal">Hi <span style="background:white">Provakar, </span></p>
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<p class="x_MsoNormal"><span style="background:white">Can you give a time frame for the access tomorrow? </span></p>
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<p class="x_MsoNormal"><span style="background:white">Regards, </span></p>
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<p class="x_MsoNormal"><span style="background:white">Marc </span></p>
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<p class="x_MsoNormal"><b>From:</b> Holly Szumila-Vance <<a href="mailto:hszumila@jlab.org">hszumila@jlab.org</a>><br>
<b>Sent:</b> Monday, November 14, 2022 12:39 PM<br>
<b>To:</b> Marc Mcmullen <<a href="mailto:mcmullen@jlab.org">mcmullen@jlab.org</a>><br>
<b>Cc:</b> Provakar Datta <<a href="mailto:provakar.datta@uconn.edu">provakar.datta@uconn.edu</a>><br>
<b>Subject:</b> Re: [Dsg-halla_gem] BigBite GEM gas monitoring Channel 03 </p>
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<p class="x_MsoNormal">Hi Marc,</p>
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<p class="x_MsoNormal">There is an opening tomorrow. I cc Provakar above as he is the current RC, and he can let you know when you can go in.
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<p class="x_MsoNormal">-Holly</p>
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<p class="x_MsoNormal"><b><span style="font-size:12.0pt">From: </span></b><span style="font-size:12.0pt">Dsg-halla_gem <<a href="mailto:dsg-halla_gem-bounces@jlab.org">dsg-halla_gem-bounces@jlab.org</a>> on behalf of Marc Mcmullen via Dsg-halla_gem <<a href="mailto:dsg-halla_gem@jlab.org">dsg-halla_gem@jlab.org</a>><br>
<b>Reply-To: </b>Marc Mcmullen <<a href="mailto:mcmullen@jlab.org">mcmullen@jlab.org</a>><br>
<b>Date: </b>Monday, November 14, 2022 at 12:02 PM<br>
<b>To: </b>"<a href="mailto:dsg-halla_gem@jlab.org">dsg-halla_gem@jlab.org</a>" <<a href="mailto:dsg-halla_gem@jlab.org">dsg-halla_gem@jlab.org</a>><br>
<b>Subject: </b>[Dsg-halla_gem] BigBite GEM gas monitoring Channel 03</span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:12.0pt">Hi Jack,</span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:12.0pt">The next time there is a scheduled opening I need to check out Ch.03 on the BigBite gas distribution.</span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:12.0pt">Since 10/27 the reading has a band of about 30 sccm. Compared to Ch.01, the band is closer to 1 sccm (normal).
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<p class="x_MsoNormal" style="background:white"><span style="font-size:12.0pt">We will use that time to determine where the problem is along the flow path.</span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:12.0pt">Regards,</span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:12.0pt">Marc</span></p>
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