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<p>Dear Cunfeng,</p>
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<p>Okay. I wasn't sure if it would help or not, but wanted it to be considered by you.</p>
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<p>Thanks,</p>
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<p>Paul<br>
</p>
<pre class="moz-signature" cols="72">--
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please enjoy your time off and respond during your working hours.
Paul E Reimer +1-630-252-4037 (Office)
Bldg 203, Physics Division +1-630-252-3903 (fax)
Argonne National Laboratory +1-630-344-9207 (mobile)
9700 S Cass Ave <a class="moz-txt-link-abbreviated" href="mailto:reimer@anl.gov">reimer@anl.gov</a>
Lemont, IL 60439 USA. he/his/him</pre>
<div class="moz-cite-prefix">On 10/20/21 09:47, Cunfeng Feng wrote:<br>
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<blockquote type="cite" cite="mid:AHEA1wCTEnXeYAKp5992-qpT.3.1634741229827.Hmail.fengcf@email.sdu.edu.cn">
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<div>Dear Paul,</div>
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<div>Thanks for your suggestion and plot. As I understand, the bundle connecting loss more light than one by one due to the gap of the clear fiber. The light guide don't improve it, and add reflectiong. So I guess this light guide don't improve the light lost.</div>
<br>
Cunfeng<br>
<br>
<br>
发件人："Reimer, Paul E." <a class="moz-txt-link-rfc2396E" href="mailto:reimer@anl.gov">
<reimer@anl.gov></a><br>
发送日期：2021-10-20 22:16:09<br>
收件人：<a class="moz-txt-link-rfc2396E" href="mailto:solid_ec@jlab.org">"solid_ec@jlab.org"</a>
<a class="moz-txt-link-rfc2396E" href="mailto:solid_ec@jlab.org"><solid_ec@jlab.org></a><br>
主题：[Solid_ec] [EXTERNAL] Re: SoLID ECal meeting 8:00am EDT Wednesday October 6th<br>
<blockquote id="isReplyContent" style="PADDING-LEFT: 1ex;
MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<p>Hello,</p>
<p><br>
</p>
<p>During this week's meeting, there was a discussion of connecting the wave length shifting fibers with clear fibers of a different diameter. I think that It was said that a many-to-many system of just bunching lost about 35% of the light (I probably am not
remembering this number correctly). The one-to-one option, on the other hand, seems difficult to implement. Below is an idea for a many-to-many system that might not loose as much light. The key is that it allows the light to spread out and mix between fibers
in a small cylindrical light guide. Thus, for fibers that don't happen to align exactly, not all of the light will be lost, as the cone of light emitted from the fiber will have a chance to expand a bit. There is still the ratio of fiber areas that you can't
get around.</p>
<p><br>
</p>
<p>Paul<br>
</p>
<p><br>
</p>
<pre class="moz-signature" cols="72">--
If you receive this e-mail after hours, during a weekend, or on a holiday,
please enjoy your time off and respond during your working hours.
Paul E Reimer +1-630-252-4037 (Office)
Bldg 203, Physics Division +1-630-252-3903 (fax)
Argonne National Laboratory +1-630-344-9207 (mobile)
9700 S Cass Ave <a class="moz-txt-link-abbreviated" href="mailto:reimer@anl.gov" moz-do-not-send="true">reimer@anl.gov</a>
Lemont, IL 60439 USA. he/his/him</pre>
<div class="moz-cite-prefix">On 10/19/21 19:12, Xiaochao Zheng wrote:<br>
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<blockquote type="cite" cite="mid:DM8PR09MB70150120FB2EEC614CFB8023B1BE9@DM8PR09MB7015.namprd09.prod.outlook.com">
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<div><span style="font-family:Calibri,Helvetica,sans-serif">Dear All: </span>
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<span style="font-family:Calibri,Helvetica,sans-serif">Our next ECal meeting will be</span><span style="font-family:Calibri,Helvetica,sans-serif;
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(</span><span style="font-family:Calibri,Helvetica,sans-serif">US Eastern Daylight Saving time),
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<span style="font-family:Calibri,Helvetica,sans-serif">1) Updates from THU (Zhihong)<br>
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<span style="font-family:Calibri,Helvetica,sans-serif">2) Updates from SDU (if applicable);</span></div>
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<span style="font-family:Calibri,Helvetica,sans-serif">3) Support structure update (Paul);</span></div>
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<span style="font-family:Calibri,Helvetica,sans-serif">4) JLab beam test discussions;</span>
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<span style="font-family:Calibri,Helvetica,sans-serif">Bluejean link is below. <br>
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<span style="font-family:Calibri,Helvetica,sans-serif">Meeting minutes are at (sorry if it's<i> still</i> a bit outdated)<br>
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<a href="https://hallaweb.jlab.org/experiment/PVDIS/SoLID/EC/meetings/SoLID_EC_Weekly_minutes.html" id="LPlnk647354" title="https://hallaweb.jlab.org/experiment/PVDIS/SoLID/EC/meetings/SoLID_EC_Weekly_minutes.html" moz-do-not-send="true"><span style="font-family:Calibri,Helvetica,sans-serif">https://hallaweb.jlab.org/experiment/PVDIS/SoLID/EC/meetings/SoLID_EC_Weekly_minutes.html</span></a></div>
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<span style="font-family:Calibri,Helvetica,sans-serif">Thanks,</span><br>
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Xiaochao</div>
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Meeting URL
<div><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__bluejeans.com_670325644-3Fsrc-3Djoin-5Finfo&d=DwMGaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=Y5Q5da_C_roUMK_5_0wUzJdgut1VPIQZWNaAwg3asvU&m=FqX2GyEQEAHLejfu_2y846broZaeKSjCkrAiLciWUMoi6fWroGCNSVGSREHI8RHx&s=wPab01RvEAebi65QJ5_ObMgzyrSI9JsGIL0IOBjIL3c&e=" title="https://bluejeans.com/670325644?src=join_info" moz-do-not-send="true" class="moz-txt-link-freetext">https://bluejeans.com/670325644?src=join_info</a></div>
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<div>Meeting ID</div>
<div>670 325 644</div>
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<div>Want to dial in from a phone?</div>
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<div>Dial one of the following numbers:</div>
<div>+1.888.240.2560 (US Toll Free)</div>
<div>(see all numbers - <a class="moz-txt-link-freetext" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__www.bluejeans.com_premium-2Dnumbers&d=DwMGaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=Y5Q5da_C_roUMK_5_0wUzJdgut1VPIQZWNaAwg3asvU&m=FqX2GyEQEAHLejfu_2y846broZaeKSjCkrAiLciWUMoi6fWroGCNSVGSREHI8RHx&s=g3capA_omUR6e5qUTDETcoyzFYB9Rz5lQs4mwzaT4yo&e=" moz-do-not-send="true">
https://www.bluejeans.com/premium-numbers</a>)</div>
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<div>Enter the meeting ID and passcode followed by #</div>
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<div>Connecting from a room system?</div>
Dial: bjn.vc or 199.48.152.152 and enter your meeting ID & passcode<br>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
Solid_ec mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Solid_ec@jlab.org" moz-do-not-send="true">Solid_ec@jlab.org</a>
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