<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<STYLE>
BLOCKQUOTE {
MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; MARGIN-LEFT: 2em
}
OL {
MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px
}
UL {
MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px
}
P {
MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px
}
BODY {
FONT-SIZE: 10.5pt; COLOR: #000000; LINE-HEIGHT: 1.5; FONT-FAMILY: Tahoma
}
</STYLE>
<META content="MSHTML 6.00.6000.17128" name=GENERATOR></HEAD>
<BODY style="MARGIN: 10px">
<DIV>Hi Gate-users,</DIV>
<DIV> </DIV>
<DIV>I want to simulate the process that using photomultiplier
to detect the visible photons (energy: several eV). </DIV>
<DIV> </DIV>
<DIV>Now I want to detect that kind of photons getting through a special
surface, but how can I count the number?</DIV>
<DIV> </DIV>
<DIV>Can you help me? Any suggestion or comments are appreciate.</DIV>
<DIV> </DIV>
<DIV>--</DIV>
<DIV>Han Shi</DIV>
<DIV>Radiotracer Development & Imaging Technology</DIV>
<DIV>Lawrence Berkeley National Lab<!--EndFragment--></DIV></BODY></HTML>