<html><body><div><p dir="auto" style=" text-align: left; margin-top: 25px; margin-bottom: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-color: white ">OK. If you could add a picture showing these spots it would be helpful.</p>
<p dir="auto" style=" text-align: left; margin-top: 25px; margin-bottom: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-color: white ">-Eugene </p>
<p dir="auto" style=" text-align: left; margin-top: 25px; margin-bottom: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-color: white ">Sent from Galaxy S7 <br>
</p>
<br><br><br>
<div class="gmail_quote">On Tue, Nov 1, 2016 at 3:42 PM -0400, "Xinzhan Bai" <span dir="ltr"><<a href="mailto:xb4zp@virginia.edu" target="_blank">xb4zp@virginia.edu</a>></span> wrote:<br>
<br>
</div>
</div><br><div><div dir="ltr"><div><div><div><div>Hi Eugene,<br><br></div><div>0 is in the hole centre on GEM detectors. As you know we have a hole on each chamber to allow beam pipe to pass through. This plot uses GEM local coordinates. (origin is in the hole centre, x axis is in the horizontal direction, y axis is in the vertical direction).<br></div><div><br></div>The result is from the data taken during HyCal calibration run, during which we had 4 dedicated runs to test GEM efficiency, and we scanned 4 spots on GEM. These 4 spots are in the same height.<br><br></div>The X axis is the coordinates (horizontal direction) of the spot, (in GEM frame), this plot shows efficiency in different GEM areas. <br><br>As during calibration, detectors are moving relative to beam, so I chose GEM local frame for this plot.<br><br></div><div>please let me know if you have comments on improving this plot.<br></div><div><br></div>Best,<br><br></div>Xinzhan<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Nov 1, 2016 at 3:16 PM, Eugene Pasyuk <span dir="ltr"><<a href="mailto:pasyuk@jlab.org" target="_blank">pasyuk@jlab.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Maxime,<br>
<br>
I am confused with slide 17 with GEM efficiency. Position with respect to what? What is 0 on X-axis?<br>
<span class="im HOEnZb"><br>
-Eugene<br>
<br>
----- Original Message -----<br>
> From: "Maxime Levillain" <<a href="mailto:mlevilla@jlab.org">mlevilla@jlab.org</a>><br>
> To: "prad" <<a href="mailto:prad@jlab.org">prad@jlab.org</a>><br>
</span><div class="HOEnZb"><div class="h5">> Sent: Tuesday, November 1, 2016 1:39:13 PM<br>
> Subject: Re: [PRad] repetition for collaboration meeting<br>
<br>
> Just a reminder of the dry run for the clas12 collaboration meeting at 5 PM in<br>
> F227 for the people at jlab, and <a href="https://bluejeans.com/6017317348" rel="noreferrer" target="_blank">https://bluejeans.com/<wbr>6017317348</a> for the other<br>
> ones available.<br>
> The talk has been updated on the wiki<br>
> (<a href="https://wiki.jlab.org/pcrewiki/images/9/99/Levillain_161102.pdf" rel="noreferrer" target="_blank">https://wiki.jlab.org/<wbr>pcrewiki/images/9/99/<wbr>Levillain_161102.pdf</a>).<br>
><br>
> Regards,<br>
> Maxime<br>
><br>
> ----- Original Message -----<br>
> From: "Maxime Levillain" <<a href="mailto:mlevilla@jlab.org">mlevilla@jlab.org</a>><br>
> To: <a href="mailto:prad@jlab.org">prad@jlab.org</a><br>
> Sent: Monday, October 31, 2016 1:08:11 PM<br>
> Subject: Re: [PRad] repetition for collaboration meeting<br>
><br>
> Hi all,<br>
><br>
> Since most people are only available after 5pm, I've booked the room F227 for<br>
> the dry-run.<br>
> I will connect to the bluejeans meeting: <a href="https://bluejeans.com/6017317348" rel="noreferrer" target="_blank">https://bluejeans.com/<wbr>6017317348</a><br>
><br>
> Regards,<br>
> Maxime<br>
><br>
> ----- Original Message -----<br>
> From: <a href="mailto:gasparan@jlab.org">gasparan@jlab.org</a><br>
> To: "Eugene Pasyuk" <<a href="mailto:pasyuk@jlab.org">pasyuk@jlab.org</a>><br>
> Cc: "Maxime Levillain" <<a href="mailto:mlevilla@jlab.org">mlevilla@jlab.org</a>>, "prad" <<a href="mailto:prad@jlab.org">prad@jlab.org</a>><br>
> Sent: Monday, October 31, 2016 12:30:59 PM<br>
> Subject: Re: [PRad] repetition for collaboration meeting<br>
><br>
> Hi All,<br>
><br>
> For the Maxime's practice run: tomorrow, on Tuesday I am free from 12:30<br>
> to 3:00 pm and after<br>
> 5 pm.<br>
><br>
> Since Eugene is available only after 5 pm CAN WE MAKE it 5 pm?<br>
><br>
> Thanks,<br>
> Ashot<br>
><br>
><br>
>> Tomorrow I am available only after 5 pm.<br>
>><br>
>> -Eugene<br>
>><br>
>> ----- Original Message -----<br>
>>> From: "Maxime Levillain" <<a href="mailto:mlevilla@jlab.org">mlevilla@jlab.org</a>><br>
>>> To: "prad" <<a href="mailto:prad@jlab.org">prad@jlab.org</a>><br>
>>> Sent: Monday, October 31, 2016 9:03:14 AM<br>
>>> Subject: [PRad] repetition for collaboration meeting<br>
>><br>
>>> Dear colleagues,<br>
>>><br>
>>> You can the presentation that I plan to on the next CLAS12 collaboration<br>
>>> meeting<br>
>>> here: <a href="https://wiki.jlab.org/pcrewiki/images/9/99/Levillain_161102.pdf" rel="noreferrer" target="_blank">https://wiki.jlab.org/<wbr>pcrewiki/images/9/99/<wbr>Levillain_161102.pdf</a>.<br>
>>> Corrections and comments are welcome!<br>
>>> I plan to do a repetition tomorrow (tuesday). Let me know if you are<br>
>>> available<br>
>>> and at which hour, so that I can book a room.<br>
>>><br>
>>> Regards,<br>
>>> Maxime<br>
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>><br>
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> PRad mailing list<br>
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</div></div></blockquote></div><br></div>
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