<html><head></head><body><div></div><div><br></div><div><br><div><div>On Jun 20, 2013, at 9:29 AM, Mark Jones wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Carlos,<br> As Charles says you are right. Maybe it is the "summing" module which saturates.<br><br> Mark<br><br>----- Original Message -----<br>From: "Carlos Ayerbe-Gayoso" <<a href="mailto:gayoso@jlab.org">gayoso@jlab.org</a>><br>To: "Edward Brash" <<a href="mailto:brash99w@gmail.com">brash99w@gmail.com</a>><br>Cc: "Mark Jones" <<a href="mailto:jones@jlab.org">jones@jlab.org</a>>, "Edward Brash" <<a href="mailto:edward.brash@cnu.edu">edward.brash@cnu.edu</a>>, "Edward Brash" <"Edward Brash"@smail.jlab.org>, "Ed Brash" <<a href="mailto:brash@jlab.org">brash@jlab.org</a>>, "Vina Punjabi" <<a href="mailto:punjabi@jlab.org">punjabi@jlab.org</a>>, "Charles F. Perdrisat" <<a href="mailto:perdrisa@jlab.org">perdrisa@jlab.org</a>><br>Sent: Wednesday, June 19, 2013 5:53:41 PM<br>Subject: Re: 12 GeV data<br><br>I'll check it, but I have some questions of this point of view, maybe <br>I'm losing something of what we had from SLAC or could be some lack of <br>knowledge from me.<br><br>I understand that every peak we have in the sum of energies histogram <br>represents a certain number of electrons delivered by the accelerator <br>(5-6 electrons in the 3 GeV, 3 electrons in the 12 GeV). When we said <br>that the machine provides electrons of 3, 9 or 12 GeV, we assume that <br>every electron of the bunch has an energy of this number (3, 9, 12 GeV) <br>with certain sigma but bigger, is this correct?<br><br>Then, I assume that every electron contributes to the shower <br>independently, so, the sum or the contribution of every shower is what <br>the calorimeter measures. If I understand correctly, Mark, you said that <br>with 36 GeV part of the shower goes out of the calorimeter, but I think <br>this is true if we have electrons of 36 GeV and this is not the case, <br>isn't it?<br><br>Please correct me if I'm wrong or I misunderstand something... sometimes <br>I assume things that seems logic to me and they're not.<br><br>Best<br><br>Carlos<br><br>El 6/19/2013 5:10 PM, Edward Brash escribió:<br><blockquote type="cite">Good point ... :)<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Dr. Edward J. Brash<br></blockquote><blockquote type="cite">Department of Physics, Computer Science & Engineering<br></blockquote><blockquote type="cite">Christopher Newport University<br></blockquote><blockquote type="cite">work: (757) 594-7451<br></blockquote><blockquote type="cite">cell: (757) 753-2831<br></blockquote><blockquote type="cite"><a href="http://www.cnu.edu/pcs">www.cnu.edu/pcs</a><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">On Jun 19, 2013, at 4:48 PM, Mark Jones <<a href="mailto:jones@jlab.org">jones@jlab.org</a>> wrote:<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><blockquote type="cite">I realized that for the SLAC 12 GeV data run the 3rd peak that should be at 36 GeV has<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">less energy because it is lost through the back of the calo. But it would<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">interesting to confirm with GEANT.<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"> Cheers,<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"> Mark<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><br></div></blockquote></div><br><div apple-content-edited="true">
<div><div><p class="MsoNormal"><i>Dr. Edward J. Brash</i><o:p></o:p></p><p class="MsoNormal">Department of Physics, Computer Science & Engineering<o:p></o:p></p><p class="MsoNormal">Christopher Newport University<o:p></o:p></p><p class="MsoNormal">p: 757-594-7451 • f: 757-594-7919<o:p></o:p></p><p class="MsoNormal"><a href="http://www.cnu.edu/pcs/index.asp">www.cnu.edu/pcs</a> • <a href="http://www.facebook.com/pages/CNU-PCSE-Department/207472702360">Find us on Facebook</a></p></div><div><br></div></div><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">
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