<div dir="ltr">Hello, <div><br></div><div>by "range cut" (it is probably not the right word), I mean: stopping the particle when its energy is below a threshold. </div><div><br></div><div>by "production cut" (G4 wording), do not create new track if energy (or range) is below a threshold. </div><div><br></div><div>In Gate : </div><div><br></div><div><div># "Conventional cut" in range</div><div>/gate/physics/SetMinRemainingRangeInRegion myRegion 0.1 mm</div><div>/gate/physics/ActivateSpecialCuts e-</div></div><div><br></div><div># "Conventional cut" in energy</div><div><div><div>/gate/physics//SetMinKineticEnergyInRegion myRegion 300 keV</div><div>/gate/physics/ActivateSpecialCuts e-</div></div></div><div><br></div><div># "Geant4 Production cut"</div><div>/gate/physics/Electron/SetCutInRegion myregion 0.1 mm<br></div><div><br></div><div>David</div><div><div><br></div><div><br></div></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Sep 22, 2015 at 7:53 AM, Wonmo Sung <span dir="ltr"><<a href="mailto:s1moremore@gmail.com" target="_blank">s1moremore@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><p style="margin-top:0px;margin-bottom:0px;color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:16px">Thanks for your reply.</p><p style="margin-top:0px;margin-bottom:0px;color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:16px"><br></p><p style="margin-top:0px;margin-bottom:0px;color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:16px">I changed the source code and got slightly different results.</p><p style="margin-top:0px;margin-bottom:0px;color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:16px"><br></p><p style="margin-top:0px;margin-bottom:0px;color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:16px">By the way, what are the differences between production cut and range cut?</p><p style="margin-top:0px;margin-bottom:0px;color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:16px"><span style="font-size:12pt">To the best of my knowledge, </span><span style="font-size:12pt">"range cut" means that particle is not produced if the range of </span><span style="font-size:12pt">produced particles is less than "range cut". </span><span style="font-size:12pt">However, I can't tell </span><span style="font-size:12pt">differences between "production cut" and "range cut".</span></p><p style="margin-top:0px;margin-bottom:0px;color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:16px"><br></p><p style="margin-top:0px;margin-bottom:0px;color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:16px">Anyway, I will try to set this value by a macro..<br></p><p style="margin-top:0px;margin-bottom:0px;color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:16px">I appreciate your answers again.<br></p><p style="margin-top:0px;margin-bottom:0px;color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:16px"><br></p><p style="margin-top:0px;margin-bottom:0px;color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:16px">Regards,<br></p><p style="margin-top:0px;margin-bottom:0px;color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:16px">Wonmo Sung<br></p><br style="color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:16px"><br style="color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:16px"><div style="color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:16px"><hr disabled style="display:inline-block;width:1245.58px"><div dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>보낸 사람:</b> <a href="mailto:david.sarrut@gmail.com" target="_blank">david.sarrut@gmail.com</a> <<a href="mailto:david.sarrut@gmail.com" target="_blank">david.sarrut@gmail.com</a>> 대신 David Sarrut <<a href="mailto:David.Sarrut@creatis.insa-lyon.fr" target="_blank">David.Sarrut@creatis.insa-lyon.fr</a>><br><b>보낸 날짜:</b> 2015년 9월 21일 월요일 오후 11:29<br><b>받는 사람:</b> 성원모<br><b>참조:</b> <a href="mailto:gate-users@lists.opengatecollaboration.org" target="_blank">gate-users@lists.opengatecollaboration.org</a><br><b>제목:</b> Re: [Gate-users] To set an energy threshold limit lower than 250 eV</font><div> </div></div><div><div dir="ltr">Hello, <div><br></div><div>exact, the lower limit was hardcoded I dont really know why. You can try to set it to 0 or 100 eV in the source code to see what happens. It may slow down simulation. Note this is a "production cut" not a "range cut" (lower limit for the G4ProductionCutsTable)</div><div><br></div><div>Maybe it could be interesting to allow the user to set this value by a macro ...</div><div><br></div><div>Sincerely, <br></div><div>David</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Sep 21, 2015 at 9:52 AM, 성원모 <span dir="ltr"><<a href="mailto:wsung@snu.ac.kr" title="mailto:wsung@snu.ac.kr
Ctrl링크를 따라가려면 <Ctrl> 키를 누른 채 클릭하거나 탭하세요." disabled target="_blank">wsung@snu.ac.kr</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr"><div style="font-size:12pt"><p style="margin-top:0px;margin-bottom:0px">Dear gate-users</p><p style="margin-top:0px;margin-bottom:0px"><br></p><p style="margin-top:0px;margin-bottom:0px">Hello! <span style="font-size:12pt">I'm currently playing with Gate v7.1.</span></p><p style="margin-top:0px;margin-bottom:0px"><br></p><p style="margin-top:0px;margin-bottom:0px">I would like to set an energy threshold limit lower than 250 eV (e.g., 100 eV). However, Gate seems to have minimum energy threshold, 250 eV.</p><p style="margin-top:0px;margin-bottom:0px">I tried to use </p><p style="margin-top:0px;margin-bottom:0px"><br></p><p style="margin-top:0px;margin-bottom:0px">/gate/physics/Electron/SetCutInRegion </p><p style="margin-top:0px;margin-bottom:0px"><br></p><p style="margin-top:0px;margin-bottom:0px">to set energy threshold lower than 250 eV, but it was not working.</p><p style="margin-top:0px;margin-bottom:0px">I checked the source code and found limit for production cuts table <span style="font-size:12pt">("source/physics/src/GatePhysicsList.cc", 80L)</span><span style="font-size:12pt">. But I'm not sure whether I could change it or not.</span></p><p style="margin-top:0px;margin-bottom:0px">This is strange to me because Geant4.10 Penelope physics has minimum low e- energy down to 100 eV but Gate does not support. </p><p style="margin-top:0px;margin-bottom:0px"><br></p><p style="margin-top:0px;margin-bottom:0px">Is there any method I can set energy threshold lower than 250 eV?</p><p style="margin-top:0px;margin-bottom:0px"><span style="font-size:12pt">I appreciate any reply in advance.</span><br></p><p style="margin-top:0px;margin-bottom:0px"><br></p><p style="margin-top:0px;margin-bottom:0px">Regards,</p><p style="margin-top:0px;margin-bottom:0px">Wonmo Sung</p></div></div><br>_______________________________________________<br>Gate-users mailing list<br><a href="mailto:Gate-users@lists.opengatecollaboration.org" disabled target="_blank">Gate-users@lists.opengatecollaboration.org</a><br><a href="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users" rel="noreferrer" disabled target="_blank">http://lists.opengatecollaboration.org/mailman/listinfo/gate-users</a><span class="HOEnZb"><font color="#888888"><br></font></span></blockquote></div><span class="HOEnZb"><font color="#888888"><br><br clear="all"><div><br></div>-- <br><div><div dir="ltr">David Sarrut, Phd<br>Directeur de recherche CNRS<br>CREATIS, UMR CNRS 5220, Inserm U 1044<div>Centre de lutte contre le cancer Léon Bérard<br>28 rue Laënnec, 69373 Lyon cedex 08<br>Tel : <a href="tel:04%2078%2078%2051%2051" value="+33478785151" target="_blank">04 78 78 51 51</a> / <a href="tel:06%2074%2072%2005%2042" value="+33674720542" target="_blank">06 74 72 05 42</a><br><a href="http://www.creatis.insa-lyon.fr/~dsarrut" disabled target="_blank">http://www.creatis.insa-lyon.fr/~dsarrut</a><br>_________________________________</div><div> "2 + 2 = 5, for extremely large values of 2"<br>_________________________________</div></div></div></font></span></div></div></div><span class="HOEnZb"><font color="#888888"><div><br></div>-- <br><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><p style="margin:0px"><span style="font-family:Arial">PhD candidate, Radiological Physics Laboratory</span><br></p><div><font face="Arial">Dept. of Transdisciplinary Studies (Biomedical Radiation Sciences)</font></div><div><font face="Arial">Seoul National University</font></div><div><font face="Arial">Seoul 110-744, KOREA</font></div><div><font face="Arial">Tel: <a href="tel:%2B82%C2%A0%282%29%203668-7371" value="+82236687371" target="_blank">+82 (2) 3668-7371</a></font></div><p style="margin:0px"><font face="Arial"></font><font face="Arial"></font><font face="Arial"></font><font face="Arial"></font></p><div><font face="Arial"><a href="http://rplab.snu.ac.kr/" style="color:rgb(17,85,204)" target="_blank">http://rplab.snu.ac.kr</a> </font><font face="Arial">(RPLab accredited by CAMPEP)</font></div></span></div></div></div></div></div></div>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr">David Sarrut, Phd<br>Directeur de recherche CNRS<br>CREATIS, UMR CNRS 5220, Inserm U 1044<div>Centre de lutte contre le cancer Léon Bérard<br>28 rue Laënnec, 69373 Lyon cedex 08<br>Tel : 04 78 78 51 51 / 06 74 72 05 42<br><a href="http://www.creatis.insa-lyon.fr/~dsarrut" target="_blank">http://www.creatis.insa-lyon.fr/~dsarrut</a><br>_________________________________</div><div> "2 + 2 = 5, for extremely large values of 2"<br>_________________________________</div></div></div>
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