<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<p>Dear FX and Mac,<br>
</p>
<p>We will need also to cook if it is not already done Run 4875,
this run (45nA) was taken at DC HV: 9,10,10. At this HV setting
DC were stable no trips. We should compare tracking efficiency
from this run and any good recent run at 45 nA.</p>
<p>If we are going to run at this current of 45 to 50 nA we should
weigh in the DC setting.<br>
</p>
<p>Best regards,</p>
<p>Latifa<br>
</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 10/8/18 2:25 AM, Rafayel Paremuzyan
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:2a049649-3760-c250-e666-72cef0faa1ce@jlab.org">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
Dear FX,<br>
<br>
At high currents (I > 40 nA), the speared between different
sectors is about x2 more than at lower currents,<br>
Is this because data at high current don't have enough statistics,
or this is something else?<br>
<br>
Rafo<br>
<br>
<br>
<div class="moz-cite-prefix">On 10/07/2018 06:41 PM,
Francois-Xavier Girod wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAOKxh45Lq7thJVhvt6Nd1SJVC7avQhCGarSOBfmVH7CFsPDMEQ@mail.gmail.com">
<meta http-equiv="content-type" content="text/html;
charset=utf-8">
<div dir="ltr">
<div dir="ltr">Dear all
<div><br>
</div>
<div>I looked at the ratio of events with positive time
based tracks normalized at 2 nA vs beam current from the
luminosity scan, and posted the corresponding plot, with
separated sectors, here</div>
<div><a href="https://logbooks.jlab.org/entry/3605590"
moz-do-not-send="true">https://logbooks.jlab.org/entry/3605590</a><br>
</div>
<div><br>
</div>
<div>At 45 nA I found a ratio of about 75% +/- 5% depending
on the sector number</div>
<div><br>
</div>
<div>Best regards</div>
<div>FX</div>
<div><br>
</div>
<div>Best regards</div>
<div>FX</div>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr">On Sun, Oct 7, 2018 at 8:34 PM Rafayel
Paremuzyan <<a href="mailto:rafopar@jlab.org"
moz-do-not-send="true">rafopar@jlab.org</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Dear all,<br>
<br>
We didn't get much beam since yesterday,<br>
MCC is still working on resolving Accelerator related
issues( RF <br>
separator, RF zone 1L03).<br>
I think there is no much to discuss for today.<br>
Instead will be good if we work on the analysis of the
special runs <br>
(random, packed data, Lumi scans),<br>
and in tomorrow's RC meeting discuss what decisions we
should make in <br>
terms of trigger/bit packing and the beam current.<br>
<br>
Rafo<br>
<br>
<br>
On 10/06/2018 09:42 AM, Rafayel Paremuzyan wrote:<br>
> Dear all,<br>
><br>
> We took data up to 2:am this night and after that south
linac had <br>
> vacuum problems,<br>
> which was solved half hour ago.<br>
> We expect to get the beam soon, and the plan is to
continue data <br>
> taking through this weekend.<br>
><br>
> There is no important items to discuss today.<br>
> I will update you with the run status tomorrow by
e-mail.<br>
><br>
> Rafo<br>
<br>
_______________________________________________<br>
Clas12_first_exp mailing list<br>
<a href="mailto:Clas12_first_exp@jlab.org" target="_blank"
moz-do-not-send="true">Clas12_first_exp@jlab.org</a><br>
<a
href="https://mailman.jlab.org/mailman/listinfo/clas12_first_exp"
rel="noreferrer" target="_blank" moz-do-not-send="true">https://mailman.jlab.org/mailman/listinfo/clas12_first_exp</a><br>
</blockquote>
</div>
</blockquote>
<br>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
Clas12_first_exp mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Clas12_first_exp@jlab.org">Clas12_first_exp@jlab.org</a>
<a class="moz-txt-link-freetext" href="https://mailman.jlab.org/mailman/listinfo/clas12_first_exp">https://mailman.jlab.org/mailman/listinfo/clas12_first_exp</a>
</pre>
</blockquote>
<br>
</body>
</html>