<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=""><div class="">Dear Emilie, dear All,</div><div class=""><br class=""></div><div class="">wouldn’t it be a good idea to have this modification/extension being</div><div class="">handled by an expert, i.e. developer knowledgeable in working with</div><div class="">GEANT4 / GATE and then send out to interested users with a</div><div class="">short advice how to make it work on an already existing installation</div><div class="">of GATE 8.0 …?</div><div class=""><br class=""></div><div class="">Many thanks and kind regards,</div><div class=""> </div><div class="">Uwe</div><br class=""><div class="">
<div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;">/----------------------------------------------------------------------<br class="">Prof. Dr. Uwe Pietrzyk<br class="">Diplom-Physiker<br class="">Institut für Neurowissenschaften und Medizin / INM-4<br class="">Forschungszentrum Jülich GmbH<br class="">52425 Jülich<br class="">Tel: +49-2461-61 4763<br class="">Fax: +49-2461-61 2820<br class="">Mobil: +49-162-103-4871<br class="">eMail: <a href="mailto:U.Pietrzyk@fz-juelich.de" class="">U.Pietrzyk@fz-juelich.de</a><br class=""><a href="http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html" class="">http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html</a><br class="">&<br class="">Bergische Universität Wuppertal<br class="">Fakultät für Mathematik und Naturwissenschaften<br class="">Büro: D.08.01<br class="">Gaußstr. 20<br class="">42097 Wuppertal<br class="">Tel: +49-(0)202-439-3523<br class="">Fax: +49-(0)202-439-2811<br class="">eMail: Uwe.Pietrzyk@uni-wuppertal.de<br class="">http://www.medizinphysik.uni-wuppertal.de<br class="">----------------------------------------------------------------------/</div>
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<br class=""><div><blockquote type="cite" class=""><div class="">On 29. Jan 2018, at 18:21, Emilie Roncali <<a href="mailto:eroncali@ucdavis.edu" class="">eroncali@ucdavis.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div dir="ltr" class=""><div class="gmail_default" style="font-size:small">Hi Dania, <br class=""><br class=""></div><div class="gmail_default" style="font-size:small">You need to change the step size in the <u class=""><b class="">Geant4</b></u> <a href="http://Cerenkov.cc" class="">Cerenkov.cc</a> file and recompile, otherwise your secondary electrons will not have a chance to produce Cerenkov photon per step.<br class=""></div><div class="gmail_default" style="font-size:small"><br class=""></div><div class="gmail_default" style="font-size:small">Happy to help you more offline.<br class=""><br class=""></div><div class="gmail_default" style="font-size:small">Best,<br class=""><br class=""></div><div class="gmail_default" style="font-size:small">Emilie<br class=""></div></div><div class="gmail_extra"><br class=""><div class="gmail_quote">On Mon, Jan 29, 2018 at 2:55 AM, Dania Consuegra <span dir="ltr" class=""><<a href="mailto:dconsuegra88@gmail.com" target="_blank" class="">dconsuegra88@gmail.com</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=""><div class=""><div class="h5"><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><font face="Times New Roman, serif" class=""><font style="font-size:12pt" size="3" class=""><span style="font-variant:normal" class=""><font color="#222222" class=""><span style="letter-spacing:normal" class="">Dear gate users,</span></font></span></font></font></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">I'm working with Gate 8<span class=""> </span></span><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">and<span class=""> </span></span><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">I'm<span class=""> </span></span><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">interested in g</span><font style="font-size:12pt;font-family:"Times New Roman",serif" color="#111111" class="">enerating and tracking optical photon</font><font style="font-size:12pt;font-family:"Times New Roman",serif" color="#111111" class="">s. I attached what I have been able to do so far.</font></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><font face="Times New Roman, serif" class=""><font style="font-size:12pt" size="3" class=""><font color="#111111" class=""><span style="font-style:normal" class=""><span style="font-weight:normal" class="">For the case<span class=""> </span></span></span></font><font class=""><span style="font-style:normal" class=""><span style="font-weight:normal" class=""><span style="background:transparent" class="">of the<span class=""> </span></span></span></span></font><font class=""><span style="font-weight:normal" class=""><span style="background:transparent" class="">Scintillation process I<span class=""> </span></span></span></font><font class=""><span style="font-weight:normal" class=""><span style="background:transparent" class="">think</span></span></font><font class=""><span style="font-weight:normal" class=""><span style="background:transparent" class=""><span class=""> </span></span></span></font><font class=""><span style="font-weight:normal" class=""><span style="background:transparent" class="">that I</span></span></font><font class=""><span style="font-weight:normal" class=""><span style="background:transparent" class=""><span class=""> </span>get some reasonable results<span class=""> </span></span></span></font><font class=""><span style="font-weight:normal" class=""><span style="background:transparent" class="">in coherence with the<span class=""> </span></span></span></font><font class=""><i class=""><b class=""><span style="background:transparent" class="">(GateWorkshop_edu_optical_<wbr class="">website.pdf)</span></b></i></font><font class=""><span style="font-weight:normal" class=""><span style="background:transparent" class=""><span class=""> </span></span></span></font><font class=""><span style="font-weight:normal" class=""><span style="background:transparent" class="">but for the<span class=""> </span></span></span></font><font class=""><span style="font-style:normal" class=""><span style="font-weight:normal" class=""><span style="background:transparent" class="">Cherenkov<span class=""> </span></span></span></span></font><font class=""><span style="font-style:normal" class=""><span style="font-weight:normal" class=""><span style="background:transparent" class="">process I just can generate the process and see the electrons with (PDGE=11).<span class=""> </span></span></span></span></font><font class=""><span style="font-style:normal" class=""><span style="font-weight:normal" class=""><span style="background:transparent" class="">I do not get optical photons<span class=""> </span></span></span></span></font><font class=""><span style="font-style:normal" class=""><span style="font-weight:normal" class=""><span style="background:transparent" class="">in this case</span></span></span></font><font class=""><span style="font-style:normal" class=""><span style="font-weight:normal" class=""><span style="background:transparent" class=""><span class=""> </span>!!!</span></span></span></font></font></font></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><font face="Times New Roman, serif" class=""><font style="font-size:12pt" size="3" class=""><font class=""><span style="font-style:normal" class=""><span style="font-weight:normal" class=""><span style="background:transparent" class="">I'm</span></span></span></font><font class=""><span style="font-style:normal" class=""><span style="font-weight:normal" class=""><span style="background:transparent" class=""><span class=""> </span>defining the process as follows</span></span></span></font><font class=""><span style="font-style:normal" class=""><span style="font-weight:normal" class=""><span style="background:transparent" class="">:</span></span></span></font></font></font></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><font face="Times New Roman, serif" class=""><font style="font-size:12pt" size="3" class=""><font class=""><span style="font-style:normal" class=""><span style="font-weight:normal" class=""><span style="background:transparent" class="">/gate/physics/addProcess Cerenkov e-</span></span></span></font></font></font></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><span style="background-color: transparent; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">/gate/physics/addProcess Cerenkov e+</span></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">I would like to know:</span><br class=""></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><font face="Times New Roman, serif" class=""><font style="font-size:12pt" size="3" class=""><span style="font-style:normal" class="">-</span><span style="font-style:normal" class="">I</span><span style="font-style:normal" class="">f there is some<span class=""> </span></span><span style="font-style:normal" class="">new<span class=""> </span></span><span style="font-style:normal" class="">physics that I can add<span class=""> </span></span><span style="font-style:normal" class="">in my macro in order to see the optical photons generated for th</span><span style="font-style:normal" class="">e</span><span style="font-style:normal" class=""><span class=""> </span></span><font class=""><span style="font-style:normal" class=""><span style="font-weight:normal" class=""><span style="background:transparent" class="">Cherenkov<span class=""> </span></span></span></span></font><font class=""><span style="font-style:normal" class=""><span style="font-weight:normal" class=""><span style="background:transparent" class="">process</span></span></span></font><span style="font-style:normal" class="">.</span></font></font></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><font face="Times New Roman, serif" class=""><font style="font-size:12pt" size="3" class=""><span style="font-style:normal" class="">-</span><span style="font-style:normal" class="">I</span><span style="font-style:normal" class="">f there is any way<span class=""> </span></span><span style="font-style:normal" class="">of define</span><span style="font-style:normal" class=""><span class=""> </span>both processes (Scintillation and Cherenkov)<span class=""> </span></span><span style="font-style:normal" class="">in order<span class=""> </span></span><span style="font-style:normal" class="">to<span class=""> </span></span><span style="font-style:normal" class="">they<span class=""> </span></span><span style="font-style:normal" class="">compete<span class=""> </span></span><span style="font-style:normal" class="">among themselves<span class=""> </span></span><span style="font-style:normal" class="">at the same<span class=""> </span></span><span style="font-style:normal" class="">simulation</span><span style="font-style:normal" class="">. Now, I just comment one process when I study the other one….</span></font></font></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><font face="Times New Roman, serif" class=""><font style="font-size:12pt" size="3" class="">-I know I can distinguish between the photons from the source and the optical photons due to the Scintillation process but, it is possible to visualize the optical photons at the same time making a difference between the ones due to the Scintillation and the ones due to the Cherenkov process….</font></font></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><font face="Times New Roman, serif" class=""><font style="font-size:12pt" size="3" class="">-The crystals that<span class=""> </span><span style="font-weight:normal" class="">I'm</span><span class=""> </span>interested in studying are (PbF<sub class="">2<span class=""> </span></sub>, PWO<sub class="">4<span class=""> </span></sub>and leas glass). It's possible to use the LUT approach for these materials….</font></font></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">At the end, my goal is to simulate a back to back source in the middle of a simple multi-optical-system (same crystal and same SiPM on both sides of the source) in order to study a coincidence time properties of the system, the efficiency and the time resolution….</span></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><font face="Times New Roman, serif" class=""><font style="font-size:12pt" size="3" class="">I’d be very glad and grateful for some help.</font></font></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><font face="Times New Roman, serif" class=""><font style="font-size:12pt" size="3" class="">Best regards,</font></font></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">Dania Consuegra Rodríguez</span><br class=""></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;margin-bottom:0in;line-height:12.8px" align="justify" class=""><font face="Times New Roman, serif" class=""><font style="font-size:12pt" size="3" class=""><span style="font-style:normal" class="">Phd studen</span></font></font><font class=""><font face="Times New Roman, serif" class=""><font style="font-size:12pt" size="3" class=""><span style="font-style:normal" class="">t<span class=""> </span></span></font></font></font><em class=""><span style="font-variant:normal" class=""><font class=""><font face="Times New Roman, serif" class=""><font style="font-size:12pt" size="3" class=""><span style="letter-spacing:normal" class=""><span style="font-style:normal" class=""><b class="">Jožef Stefan Institute</b></span></span></font></font></font></span></em></p><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial" class=""></div></div><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial" class=""><span class=""></span><p style="margin-bottom:0in;font-variant:normal;letter-spacing:normal;font-style:normal;font-weight:normal;line-height:13px" align="justify" class=""><font color="#222222" class=""><font face="Times New Roman, serif" class=""><font style="font-size:12pt" size="3" class="">PD> Sorry if this email appears repeated to you. I got an error the first time I sent it ...</font></font></font></p></div><br class=""></div>
</blockquote></div><br class=""><br clear="all" class=""><br class="">-- <br class=""><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div dir="ltr" class=""><br class=""></div><div class="">Emilie Roncali, Ph.D.<br class="">Assistant Project Scientist<br class="">Associate Editor, <span class="">EJNMMI Physics<br class=""><br class=""></span>Dept. of Biomedical Engineering – GBSF 2505<br class="">University of California, Davis<br class="">451 East Health Sciences Drive<br class="">Davis, CA 95616<br class="">Tel: (530) 754-9511<br class=""><a href="mailto:eroncali@ucdavis.edu" target="_blank" class="">eroncali@ucdavis.edu</a><b class=""><span class=""></span></b><br class=""></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
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