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So can we turn on HV yet?<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Eric Fuchey <efuchey@jlab.org><br>
<b>Sent:</b> Monday, November 1, 2021 5:54 PM<br>
<b>To:</b> sbs_gems@jlab.org <sbs_gems@jlab.org><br>
<b>Cc:</b> Averett, Todd D <tdaver@wm.edu>; Yale, Bradley <byale@wm.edu>; jones@jlab.org <jones@jlab.org>; Arun Tadepalli <arunts@jlab.org><br>
<b>Subject:</b> [Fwd: Re: schedule of overnight GEMs test]</font>
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<div class="PlainText">PS: I forgot maybe the most important:<br>
3) make sure the GEM HVs are turned off before 8am.<br>
<br>
also putting grinch people in CC since they wanted to test their detector<br>
and also BBcal people since I assume we will have to turn BBCal on for<br>
trigger.<br>
<br>
PPS: slack/email/text me if you have questions<br>
<br>
---<br>
Dear all,<br>
<br>
I got a positive answer from Jessie that you will be able to switch on the<br>
GEMs tomorrow evening for tests. See his answer to my message below.<br>
Again, please do what you did on Saturday i.e.:<br>
1) Wait for my green light to turn the GEMs on;<br>
2) halog when you turn the GEMs ON, and halog when you turn the GEMs off.<br>
<br>
Best,<br>
Eric<br>
<br>
---------------------------- Original Message ----------------------------<br>
Subject: Re: schedule of overnight GEMs test<br>
From: "Jessie Butler" <jbutler@jlab.org><br>
Date: Mon, November 1, 2021 4:38 pm<br>
To: "efuchey@jlab.org" <efuchey@jlab.org><br>
--------------------------------------------------------------------------<br>
<br>
Hi Eric,<br>
<br>
Yes, turning on the HV tomorrow evening should work. I will give you a<br>
call once we are done working. If you haven't heard from me by 4pm<br>
tomorrow, please give me a call because I will be in the MOLLER review and<br>
might forget to call you.<br>
<br>
Also, can you ask the GEM folks to make a log entry when they are turning<br>
the GEMs on and when they have turned them off? This will make it easy for<br>
me to understand the state of the GEMs HV when I am reading the HALOG in<br>
the morning before beginning work.<br>
<br>
Regards,<br>
<br>
Jessie Butler<br>
<br>
Physics / Hall A Work Coordinator<br>
<br>
757-269-5544<br>
<br>
<br>
Everything is theoretically impossible,<br>
<br>
until it is done. (R.A. Heinlein)<br>
<br>
________________________________<br>
From: Eric Fuchey <efuchey@jlab.org><br>
Sent: Monday, November 1, 2021 4:07 PM<br>
To: Jessie Butler <jbutler@jlab.org><br>
Subject: schedule of overnight GEMs test<br>
<br>
Hi Jessie,<br>
<br>
The GEM people wanted to know if they could switch on their HV at least<br>
for one night during the week to conduct some tests. It will probably not<br>
be tonight (they have some overhead time to flush Ar-CO2 instead of N2),<br>
but I wondered if that could happen tomorrow evening for instance.<br>
<br>
So perhaps we could do the following:<br>
1) we first agree to do it e.g. tomorrow evening after you and your team<br>
is done working in the hall<br>
2) When tomorrow evening you and your team are done working in the hall<br>
for the day, you call me, so I can call the GEM experts so they can get<br>
started on the work they want to do.<br>
3) we make sure that by the time you go back to the hall the day after,<br>
the HVs are turned off so you and your team can resume work in the hall.<br>
<br>
If tomorrow evening/night cannot work for a reason or another, please let<br>
me know what other day can be good.<br>
<br>
Also, I am very aware that the amount of work in the hall is enormous, but<br>
we want to get a sense of how likely it is that you will be able to change<br>
the J2 GEM layer<br>
<br>
Best,<br>
Eric<br>
<br>
--<br>
Eric FUCHEY<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
-- <br>
Eric FUCHEY<br>
<br>
<br>
<br>
-- <br>
Eric FUCHEY<br>
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