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<p class="MsoNormal">Thanks Anu, <o:p></o:p></p>
<p class="MsoNormal">I am not on Slack. <o:p></o:p></p>
<p class="MsoNormal">What are we supposed to be seeing on the plots? Could the color scale be adjusted as well?
<o:p></o:p></p>
<p class="MsoNormal">Thanks <o:p></o:p></p>
<p class="MsoNormal">Kondo<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>From:</b> Anuruddha Rathnayake <adr4zs@virginia.edu> <br>
<b>Sent:</b> Saturday, November 20, 2021 2:26 PM<br>
<b>To:</b> Gnanvo, Kondo (kg6cq) <kg6cq@virginia.edu><br>
<b>Cc:</b> Andrew Puckett <puckett@jlab.org>; Jeffas, Sean (sj9ry) <sj9ry@virginia.edu>; sbs_gems@jlab.org<br>
<b>Subject:</b> Re: [Sbs_gems] [EXTERNAL] Fwd: Fwd: GEM HV scan with new resistors<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi Kondo,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">This is what Sean had shared in the Slack channel with us just a short while ago.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Anu<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Sat, 20 Nov 2021, 14:20 Gnanvo, Kondo (kg6cq), <<a href="mailto:kg6cq@virginia.edu">kg6cq@virginia.edu</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi Andrew,
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Is there somewhere one can have a look at the weird noise issue you are alluding too?
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thanks
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Kondo<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b>From:</b> Sbs_gems <<a href="mailto:sbs_gems-bounces@jlab.org" target="_blank">sbs_gems-bounces@jlab.org</a>>
<b>On Behalf Of </b>Andrew Puckett<br>
<b>Sent:</b> Saturday, November 20, 2021 12:54 PM<br>
<b>To:</b> Jeffas, Sean (sj9ry) <<a href="mailto:sj9ry@virginia.edu" target="_blank">sj9ry@virginia.edu</a>><br>
<b>Cc:</b> <a href="mailto:Sbs_gems@jlab.org" target="_blank">Sbs_gems@jlab.org</a><br>
<b>Subject:</b> Re: [Sbs_gems] [EXTERNAL] Fwd: Fwd: GEM HV scan with new resistors<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">good idea. Tracking and efficiency analysis should be ready to go, up to this weird new noise issue we are seeing <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__puckett.physics.uconn.edu&d=DwMGaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=IY9rjQPVeUBORHn2z0jGy7U2Cc-U0-dYM3Rqg9Kcgwk&m=UwG6iJk4yGiN-GcJ62MR1RWLNsGeyjVLM-LqcmH-PY0ipePS25JXGUyTbL5r1fE1&s=tqlafAHE4wrZCBjvqnol2FgYZ5kwXSqGuUCTIHEVAN8&e=" target="_blank">puckett.physics.uconn.edu</a><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">On Nov 20, 2021, at 10:32 AM, Sean Jeffas <<a href="mailto:sj9ry@virginia.edu" target="_blank">sj9ry@virginia.edu</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi All,
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Looks like Brad accidentally only sent this message to a few of us. Since we have so much time I think we can take at least two data points every day using cosmics. So we will try
to do that.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Best,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">Sean<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">---------- Forwarded message ---------<br>
From: <strong><span style="font-family:"Calibri",sans-serif">Brad Sawatzky</span></strong> <<a href="mailto:brad@swatter.net" target="_blank">brad@swatter.net</a>><br>
Date: Fri, Nov 19, 2021 at 8:15 PM<br>
Subject: Re: Fwd: [Sbs_gems] GEM HV scan with new resistors<br>
To: Ezekiel Wertz <<a href="mailto:ewertz@email.wm.edu" target="_blank">ewertz@email.wm.edu</a>>, Brad Sawatzky <<a href="mailto:brads@jlab.org" target="_blank">brads@jlab.org</a>><br>
Cc: Thir Gautam <<a href="mailto:tns.gautam@gmail.com" target="_blank">tns.gautam@gmail.com</a>>, Xinzhan Bai <<a href="mailto:xb4zp@virginia.edu" target="_blank">xb4zp@virginia.edu</a>>, Jeffas, Sean (sj9ry) <<a href="mailto:sj9ry@virginia.edu" target="_blank">sj9ry@virginia.edu</a>><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">We will not have any beam until Tuesday swing at the earliest, probably later.<br>
<br>
If this scan can be done with cosmics (slowly...) Then perhaps it may be worth doing some of this over the weekend?<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On November 19, 2021 7:01:03 PM EST, Ezekiel Wertz <<a href="mailto:ewertz@email.wm.edu" target="_blank">ewertz@email.wm.edu</a>> wrote:
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi Brad,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I think you are on the GEM mailing list so you probably saw this discussion. At the time of the RC meeting this afternoon I thought the table of points for the efficiency scan was
set in stone. But that seems less clear to me now. Anyway I know we will not be going above 3653 (4100 equiv) V and I suspect we will go down to 3385 (3800 equiv) V via the attached email. Thir is currently the GEM on-call and his number is on the whiteboard.
I know Xinzhan is on some shifts over the weekend. So depending on the timing of beam return and this task he might be able to do it as well. It's not entirely clear to me if Kondo and Nilanga have come to a consensus on the best form of the efficiency scan
they would want. But maybe the UVa folks have more knowledge that I am unaware of.
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Zeke<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">---------- Forwarded message ---------<br>
From: <b>Holly Szumila-Vance</b> <<a href="mailto:hszumila@jlab.org" target="_blank">hszumila@jlab.org</a>><br>
Date: Fri, Nov 19, 2021 at 4:09 PM<br>
Subject: [Sbs_gems] GEM HV scan with new resistors<br>
To: <a href="mailto:sbs_gems@jlab.org" target="_blank">sbs_gems@jlab.org</a> <<a href="mailto:sbs_gems@jlab.org" target="_blank">sbs_gems@jlab.org</a>><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi Kondo, Nilanga, all,
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I realize the voltage scan doesn’t need good alignment, but right now the alignment was showing the new HV layer with about 14% occupancy, which is why I brought up the point about
making sure alignment will be somewhat ready. Andrew says it will be, so we should be able to see in real time if we are getting plateaus.
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">The HV scan we completed previously consisted of running:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">3385 (3800 equiv)<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">3430 (3850 equiv)<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">3475 (3900 equiv)<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">3519 (3950 equiv)<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">3564 (4000 equiv)<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">3608 (4050 equiv)<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">3653 (4100 equiv)<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">3697 (4150 equiv)<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">3720 (4175 equiv)<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Can we reduce some of these points? Should we stay below 3653V or some other limit? These values correspond to the divider before modification.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thanks,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Holly<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">_______________________________________________<br>
Sbs_gems mailing list<br>
<a href="mailto:Sbs_gems@jlab.org" target="_blank">Sbs_gems@jlab.org</a><br>
<a href="https://mailman.jlab.org/mailman/listinfo/sbs_gems" target="_blank">https://mailman.jlab.org/mailman/listinfo/sbs_gems</a><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">--
<br>
Sent from my Android phone with K-9 Mail. Please excuse my brevity.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">_______________________________________________<br>
Sbs_gems mailing list<br>
<a href="mailto:Sbs_gems@jlab.org" target="_blank">Sbs_gems@jlab.org</a><br>
<a href="https://mailman.jlab.org/mailman/listinfo/sbs_gems" target="_blank">https://mailman.jlab.org/mailman/listinfo/sbs_gems</a><o:p></o:p></p>
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<p class="MsoNormal">_______________________________________________<br>
Sbs_gems mailing list<br>
<a href="mailto:Sbs_gems@jlab.org" target="_blank">Sbs_gems@jlab.org</a><br>
<a href="https://mailman.jlab.org/mailman/listinfo/sbs_gems" target="_blank">https://mailman.jlab.org/mailman/listinfo/sbs_gems</a><o:p></o:p></p>
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