<div dir="ltr">Hi Vincent,<div> I'm still curious about your cosmic test trigger. Do you use one scintillator or two scintillators for trigger? If you just use one, that make sense.</div><div> As we know, the detection effeciency is very high, if use two scintillators, it could reach more than 98%. For our experiment before, it's hard to detect single photon when using two scintillators as trigger, only the trigger threshold is very low. Because the single photon peak is stable, we get the gain of every PMT using other method, and then get the photon number from signal divided by gain. </div><div><br></div><div>Best Regards,</div><div>Ye Tian</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Apr 7, 2016 at 8:54 AM, 焦健斌 <span dir="ltr"><<a href="mailto:jiaojb@sdu.edu.cn" target="_blank">jiaojb@sdu.edu.cn</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
<br>
<br>
> -----原始邮件-----<br>
> 发件人: "Vincent Sulkosky" <<a href="mailto:vasulk@jlab.org">vasulk@jlab.org</a>><br>
> 发送时间: 2016年4月7日 星期四<br>
> 收件人: "solid ec" <<a href="mailto:solid_ec@jlab.org">solid_ec@jlab.org</a>><br>
> 抄送: "Solid daq" <<a href="mailto:solid_daq@jlab.org">solid_daq@jlab.org</a>><br>
> 主题: Re: [Solid_ec] SoLID EC/DAQ meeting 9:00am Thursday 4/7/2016 CC F227<br>
<div class="HOEnZb"><div class="h5">><br>
><br>
> Dear All,<br>
><br>
> I attached the wrong file last night. Here is the correct file for today's meeting.<br>
><br>
> Best Regards,<br>
> Vince<br>
><br>
> --<br>
> Vincent A. Sulkosky<br>
> Research Associate, UVA<br>
><br>
> CEBAF Center F358<br>
> Jefferson Lab Phone at JLab: <a href="tel:%28757%29%20269-5487" value="+17572695487">(757) 269-5487</a><br>
> 12000 Jefferson Avenue Phone at UVA: <a href="tel:%28434%29%20924-7589" value="+14349247589">(434) 924-7589</a><br>
> Suite #4, MS 12 email: <a href="mailto:vasulk@jlab.org">vasulk@jlab.org</a><br>
> Newport News, VA 23606 Fax: <a href="tel:%28757%29%20269-5703" value="+17572695703">(757) 269-5703</a><br>
><br>
><br>
> ----- Original Message -----<br>
> From: "Xiaochao Zheng" <<a href="mailto:xiaochao@jlab.org">xiaochao@jlab.org</a>><br>
> To: "solid ec" <<a href="mailto:solid_ec@jlab.org">solid_ec@jlab.org</a>>, "Solid daq" <<a href="mailto:solid_daq@jlab.org">solid_daq@jlab.org</a>><br>
> Sent: Wednesday, April 6, 2016 11:39:52 AM<br>
> Subject: [Solid_ec] SoLID EC/DAQ meeting 9:00am Thursday 4/7/2016 CC F227<br>
><br>
> Dear All:<br>
><br>
> We will have our SoLID EC/DAQ meeting at 9:00am US EST on Thursday 4/7/2016. The location is CC F227.<br>
><br>
> The call-in instruction is shown below. Meeting minutes can be found at<br>
> <a href="http://hallaweb.jlab.org/experiment/PVDIS/SoLID/EC/meetings/SoLID_EC_Weekly_minutes.html" rel="noreferrer" target="_blank">http://hallaweb.jlab.org/experiment/PVDIS/SoLID/EC/meetings/SoLID_EC_Weekly_minutes.html</a><br>
><br>
> If you have slides to present, please email them to everyone by replying to this email (or to me) before the meeting.<br>
><br>
> Thanks,<br>
><br>
> Xiaochao<br>
><br>
> To join the Meeting:<br>
> <a href="https://bluejeans.com/681485548/7290" rel="noreferrer" target="_blank">https://bluejeans.com/681485548/7290</a><br>
><br>
> To join via Browser:<br>
> <a href="https://bluejeans.com/681485548/7290/browser" rel="noreferrer" target="_blank">https://bluejeans.com/681485548/7290/browser</a><br>
><br>
> To join with Lync:<br>
> <a href="https://bluejeans.com/681485548/7290/lync" rel="noreferrer" target="_blank">https://bluejeans.com/681485548/7290/lync</a><br>
><br>
> To join via Cisco Jabber Video:<br>
> <a href="https://bluejeans.com/681485548/7290/jabber" rel="noreferrer" target="_blank">https://bluejeans.com/681485548/7290/jabber</a><br>
><br>
><br>
> To join via Room System:<br>
> Video Conferencing System: <a href="http://bjn.vc" rel="noreferrer" target="_blank">bjn.vc</a> -or- 199.48.152.152<br>
> Meeting ID: 681485548<br>
> Participant Passcode: 7290<br>
><br>
> To join via Phone:<br>
> 1) Dial:<br>
> <a href="tel:%2B1%20408%20740%207256" value="+14087407256">+1 408 740 7256</a><br>
> <a href="tel:%2B1%20888%20240%202560" value="+18882402560">+1 888 240 2560</a>(US Toll Free)<br>
> <a href="tel:%2B1%20408%20317%209253" value="+14083179253">+1 408 317 9253</a>(Alternate Number)<br>
> (see all numbers - <a href="http://bluejeans.com/numbers" rel="noreferrer" target="_blank">http://bluejeans.com/numbers</a>)<br>
> 2) Enter Conference ID: 681485548<br>
> 3) Enter Participant Passcode: 7290<br>
> _______________________________________________<br>
> Solid_ec mailing list<br>
> <a href="mailto:Solid_ec@jlab.org">Solid_ec@jlab.org</a><br>
> <a href="https://mailman.jlab.org/mailman/listinfo/solid_ec" rel="noreferrer" target="_blank">https://mailman.jlab.org/mailman/listinfo/solid_ec</a><br>
<br>
<br>
<br>
<br>
<br>
</div></div><br>_______________________________________________<br>
Solid_ec mailing list<br>
<a href="mailto:Solid_ec@jlab.org">Solid_ec@jlab.org</a><br>
<a href="https://mailman.jlab.org/mailman/listinfo/solid_ec" rel="noreferrer" target="_blank">https://mailman.jlab.org/mailman/listinfo/solid_ec</a><br>
<br></blockquote></div><br></div>