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<div class="moz-cite-prefix">Hi all,<br>
<br>
Local JLab: I have booked L207 for both the BCAL reconstruction
(11:15) meeting and the BCAL calibration constants meeting (2 pm),<br>
<br>
I have updated the version of the document on DocDB, mainly
correcting typos and adding clarifying information and indeed
continue to update it as I get feedback. If you have any
corrections/feedback that do not require discussion send them to
me and I can update the document offline. Before the meeting you
may wish to check out the latest version for discussion. <br>
<br>
Andrei: In order to use your calibration constants correctly, we
need to know what attenuation length you used to determine the
"attenuated energy". Could you please send the value.<br>
<br>
Thanks, Elton.<br>
<br>
<br>
<br>
<pre class="moz-signature" cols="72">Elton Smith
Jefferson Lab MS 12H3
12000 Jefferson Ave STE 4
Newport News, VA 23606
(757) 269-7625
(757) 269-6331 fax </pre>
On 12/11/14 3:48 PM, Elton Smith wrote:<br>
</div>
<blockquote cite="mid:548A0318.90103@jlab.org" type="cite">
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<div class="moz-cite-prefix">Hi Zisis,<br>
<br>
Ok. I suggest we meet tomorrow afternoon at 2 pm and review the
calibration document. <br>
<br>
Thanks, Elton.<br>
<pre class="moz-signature" cols="72">Elton Smith
Jefferson Lab MS 12H3
12000 Jefferson Ave STE 4
Newport News, VA 23606
(757) 269-7625
(757) 269-6331 fax </pre>
On 12/11/14 12:41 PM, Zisis Papandreou wrote:<br>
</div>
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cite="mid:0D2C4D41-0F6C-457E-8254-870AA0F74F67@uregina.ca"
type="cite">
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Hi Elton:
<div><br>
</div>
<div>I am available on Friday only between 2-4pm EST. Monday
is wide open though.</div>
<div><br>
</div>
<div>Cheers, Zisis...</div>
<div><br>
<div>
<div>On Dec 10, 2014, at 1:39 PM, Elton Smith <<a
moz-do-not-send="true" href="mailto:elton@jlab.org">elton@jlab.org</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">Dear colleagues,<br>
<br>
I have uploaded a draft document (GlueX-doc-2618) with
definitions for <br>
the low-level calibration constants for the BCAL. This is
a document for <br>
discussion and feedback is welcome. The goal, after we
have hashed it <br>
out, is to have precise definitions of all constants that
are placed in <br>
the calibrations data base. In particular, it is necessary
to choose <br>
some conventions, which need to be clear to avoid errors
in <br>
reconstruction. We need to agree on what those conventions
are. We <br>
should also make sure that there are no factors of 2
missing.<br>
<br>
The document proposes that the gains be specified at the
center of the <br>
module. If I understand correctly, this is different than
Andrei's <br>
convention that uses the end of the module.<br>
Therefore, there is a factor of e^{-L/2*lambda} between
the two that <br>
needs to be sorted out. There may also be other
definitions or <br>
conventions that need consensus.<br>
<br>
We should probably find a dedicated time to go over this.
As we are in <br>
the process of entering constants into db now, I would
hope to have a <br>
discussion soon. Is Friday a possibility?<br>
<br>
Thanks, Elton.<br>
<br>
<br>
-- <br>
Elton Smith<br>
Jefferson Lab MS 12H3<br>
12000 Jefferson Ave STE 4<br>
Newport News, VA 23606<br>
(757) 269-7625<br>
(757) 269-6331 fax<br>
<br>
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<div><font
class="Apple-style-span"
color="#1d5091"
face="Verdana" size="4"><br
class="Apple-interchange-newline">
Dr. Zisis Papandreou</font></div>
<div style="color: rgb(0, 0,
0);"><span
class="Apple-style-span"
style="font-size: 13px;"><font
class="Apple-style-span"
face="Verdana">Professor
of Physics, Ph.D., P.Phys.</font></span></div>
<div style="color: rgb(0, 0,
0);"><span
class="Apple-style-span"
style="font-size: 13px;"><font
class="Apple-style-span"
face="Verdana">---------------------------------------------------------</font></span></div>
<div style="font-size: 12px;
font-style: normal;
font-weight: normal;"><font
class="Apple-style-span"
color="#929292"
face="Verdana">Department of
Physics </font></div>
<div style="font-size: 12px;
font-style: normal;
font-weight: normal;"><font
class="Apple-style-span"
color="#929292"
face="Verdana">University of
Regina<span
class="Apple-tab-span"
style="white-space: pre;">
</span> </font></div>
<div style="font-size: 12px;
font-style: normal;
font-weight: normal;"><font
class="Apple-style-span"
color="#929292"
face="Verdana">3737 Wascana
Parkway</font></div>
<div style="font-size: 12px;
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class="Apple-style-span"
color="#929292"
face="Verdana">Regina, SK
S4S 0A2<span
class="Apple-tab-span"
style="white-space: pre;">
</span> CANADA</font></div>
<div style="color: rgb(0, 0, 0);
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face="Verdana"><br>
</font></div>
<div style="color: rgb(0, 0,
0);"><font
class="Apple-style-span"
face="Verdana"><b>Phone:
(306) 585-5379</b></font></div>
</div>
</span></div>
</span></div>
</span></div>
</span></div>
</span></div>
</span><span class="Apple-style-span"
style="font-family: Verdana; font-size: 12px;"><font
class="Apple-style-span" color="#929292">Fax: (306)
585-5659</font></span>
<div><span class="Apple-style-span" style="font-family:
Verdana; font-size: 12px;"><font
class="Apple-style-span" color="#929292">Email:</font> </span><a
moz-do-not-send="true"
href="mailto:zisis@uregina.ca">zisis@uregina.ca</a></div>
<div>
<div style="word-wrap: break-word; -webkit-nbsp-mode:
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class="Apple-style-span" color="#929292"
face="Verdana">Website:</font> <a
moz-do-not-send="true"
href="http://kronos.phys.uregina.ca/%7Ezisis/professional/">http://www.uregina.ca/science/physics/faculty-staff/faculty/zisis-papandreou.html</a></div>
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