
<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Okay, this is pretty conservative. We can do better than this between 200 and 300 if it becomes an issue, but you might decide you don’t need it, which will save us money. I wonder why it cuts off though? If you didn’t explicitly put in a photocathode QE curve, what physics in G4 cuts it off? If it is gas physics, it would start cutting off below 200, not below 250. Is the scintillator material transparent below 250 or not? I don’t recall this from my prior experience. KK<div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Mar 20, 2017, at 4:08 PM, Wouter Deconinck <<a href="mailto:wdeconinck@wm.edu" class="">wdeconinck@wm.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hi all,<div class=""><br class=""></div><div class="">Since it came up in MOLLER pion detector simulation discussions last Friday, here is the efficiency curve of the photocathode in the pion simulations. UV photons are definitely not registered below about 230 nm.</div><div class=""><br class=""><div class=""><span id="cid:ii_15aed4ecf4075e5c"><image.png></span><br class=""></div></div><div class=""><br class=""></div><div class="">Since someone will ask: from the course code I think it uses linear interpolation, constant value extrapolation outside the given range. So it'd make sense to add a zero efficiency point on both sides of the range.</div><div class=""><br class=""></div><div class="">Cheers,</div><div class="">Wouter</div></div><div class="gmail_extra"><br class=""><div class="gmail_quote">On Tue, Mar 14, 2017 at 3:20 PM, Kurtis Bartlett <span dir="ltr" class=""><<a href="mailto:kdbartlett@email.wm.edu" target="_blank" class="">kdbartlett@email.wm.edu</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr" class=""><span style="font-size:12.8px" class="">Hello Everyone,</span><div style="font-size:12.8px" class=""><br class=""></div><div style="font-size:12.8px" class="">As a reminder to the members of the <span class="m_4261606059289500566m_-4991608047743486789m_2145963482046753178m_-3216089366405490180m_6242814976674702406m_6383061932988912735gmail-m_2175965128871661572gmail-m_-4121694774762064494gmail-il"><span class="m_4261606059289500566m_-4991608047743486789m_2145963482046753178m_-3216089366405490180m_6242814976674702406il"><span class="m_4261606059289500566m_-4991608047743486789m_2145963482046753178m_-3216089366405490180il"><span class="m_4261606059289500566m_-4991608047743486789m_2145963482046753178il"><span class="m_4261606059289500566m_-4991608047743486789il"><span class="m_4261606059289500566il">MOLLER</span></span></span></span></span></span> <span class="m_4261606059289500566m_-4991608047743486789m_2145963482046753178m_-3216089366405490180m_6242814976674702406m_6383061932988912735gmail-m_2175965128871661572gmail-m_-4121694774762064494gmail-il"><span class="m_4261606059289500566m_-4991608047743486789m_2145963482046753178m_-3216089366405490180m_6242814976674702406il"><span class="m_4261606059289500566m_-4991608047743486789m_2145963482046753178m_-3216089366405490180il"><span class="m_4261606059289500566m_-4991608047743486789m_2145963482046753178il"><span class="m_4261606059289500566m_-4991608047743486789il"><span class="m_4261606059289500566il">Pion</span></span></span></span></span></span> <span class="m_4261606059289500566m_-4991608047743486789m_2145963482046753178m_-3216089366405490180il">Background</span>/Det<wbr class="">ector working group, there will be a meeting this week on Friday at 9am.</div><div style="font-size:12.8px" class=""><br class=""></div><div style="font-size:12.8px" class=""><span style="font-size:12.8px" class="">The agenda for the meeting can be found on the </span><span class="m_4261606059289500566m_-4991608047743486789m_2145963482046753178m_-3216089366405490180m_6242814976674702406m_6383061932988912735gmail-m_2175965128871661572gmail-m_-4121694774762064494gmail-m_9088376801859300875gmail-il" style="font-size:12.8px"><span class="m_4261606059289500566m_-4991608047743486789m_2145963482046753178m_-3216089366405490180m_6242814976674702406il"><span class="m_4261606059289500566m_-4991608047743486789m_2145963482046753178m_-3216089366405490180il"><span class="m_4261606059289500566m_-4991608047743486789m_2145963482046753178il"><span class="m_4261606059289500566m_-4991608047743486789il"><span class="m_4261606059289500566il">MOLLER</span></span></span></span></span></span><span style="font-size:12.8px" class=""> wiki:</span></div><div style="font-size:12.8px" class=""><span style="font-size:12.8px" class=""></span><br class=""><a href="https://hallaweb.jlab.org/wiki/index.php/MOLLER_Pion_Background_Meeting_Friday%2C_March_17%2C_2017_9:00am_EST" target="_blank" class="">https://hallaweb.jlab.org/<wbr class="">wiki/index.php/MOLLER_Pion_<wbr class="">Background_Meeting_Friday%2C_<wbr class="">March_17%2C_2017_9:00am_EST</a><br class=""><br class="">Feel free to add any other points of business to the wiki.</div><div style="font-size:12.8px" class=""><div style="font-size:12.8px" class=""><div style="font-size:12.8px" class=""><br class=""></div><div style="font-size:12.8px" class=""><div style="font-size:12.8px" class="">Here is the Bluejeans call information:</div><div style="font-size:12.8px" class=""><br class=""></div><div style="font-size:12.8px" class="">URL: <a href="https://bluejeans.com/624029893" target="_blank" class="">https://bluejeans.com/624<wbr class="">029893</a></div><div style="font-size:12.8px" class=""><br class=""></div><div style="font-size:12.8px" class="">Phone Number: <a href="tel:1-888-240-2560" value="+18882402560" target="_blank" class="">1-888-240-2560</a></div><div style="font-size:12.8px" class=""><br class=""></div><div style="font-size:12.8px" class="">Meeting ID: 624029893</div><div style="font-size:12.8px" class=""><br class=""></div><div style="font-size:12.8px" class="">Hope to see everyone there.</div><div style="font-size:12.8px" class=""><br class=""></div><div style="font-size:12.8px" class="">Cheers,</div><div style="font-size:12.8px" class=""><br class=""></div><div style="font-size:12.8px" class="">Kurtis</div></div></div></div><div class="m_4261606059289500566yj6qo m_4261606059289500566ajU"><div id="m_4261606059289500566:1fm" class="m_4261606059289500566ajR"><img class="m_4261606059289500566ajT" src="https://ssl.gstatic.com/ui/v1/icons/mail/images/cleardot.gif"></div></div><span class="HOEnZb"><font color="#888888" class=""><br clear="all" class=""><br class="">-- <br class=""><div class="m_4261606059289500566gmail_signature" data-smartmail="gmail_signature"><div dir="ltr" class="">Kurtis D. Bartlett<br class=""><br class=""><div class="">PhD. Research Candidate </div><div class="">College of William and Mary Physics Department<br class=""><a href="mailto:kdbartlett@email.wm.edu" target="_blank" class="">kdbartlett@email.wm.edu</a></div></div></div>

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<br class="">______________________________<wbr class="">_________________<br class="">

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<br class=""></blockquote></div><br class=""><br clear="all" class=""><div class=""><br class=""></div>-- <br class=""><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr" class=""><div class="">Wouter Deconinck<br class="">Assistant Professor of Physics<br class="">College of William & Mary<br class="">Office: Small Hall 343D<br class="">Phone: (757) 221-3539</div><div class=""><br class=""></div><div class="">E<span style="font-size:12.8px" class="">mails sent to this address are subject to requests for public review under the Virginia Freedom of Information Act.</span></div></div></div>

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