<div dir="ltr">Paulo,<div> </div><div>The phantom and source size didn't have effects on the energy distributions. I checked the physic interactions in the hits data. PhotonElectric, RayleighScatter and ComptonScatter were found in fastY90 simulation. Besides these three, plenty of ElectricIonization and Bremsstrahlung were also found in ion source simultions. These two kinds of interaction in crystals may be the reason of the difference in the energy distributions. Maybe they were forbidden in fastY90 source.</div><div> </div><div> </div><div>Anyway, thanks!</div><div> </div><div>Jinxia</div></div><div class="gmail_extra"> <div class="gmail_quote">2017-01-24 0:35 GMT+08:00 Paulo Caribé <<a href="mailto:Paulo.Caribe@ugent.be" target="_blank">Paulo.Caribe@ugent.be</a>>: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div style="word-wrap:break-word"> Jinxia, <div> </div> <div>make sure that your phantom and source are in the same size. Have you tried it in this away?</div> <div> </div> <div>1）Setting1: simulation with fastY90 #-----------------Phantom-------------------------------- /gate/cylinder_phantom/geometry/setHeight 30.5 cm (You should put setHeight = 30.065 cm)</div> <div> #-----------------Source-------------------------------- /gate/source/ionsrc/gps/halfz 15.0325 cm ##########################################</div> <div> </div> <div> </div> <div>2）Setting2: simulation with the ion source #-----------------Phantom-------------------------------- /gate/cylinder_phantom/geometry/setHeight 30.065 cm #-----------------Source-------------------------------- /gate/source/ionsrc/gps/halfz 15.0325 cm ##########################################################</div> <div> </div> <div>Regards,</div> <div> </div> <div>Doctoral researcher Ghent University - iMinds Medical IT Medical Imaging and Signal Processing (MEDISIP) IBiTech - Campus UZ - Entrance 36 (Block B) De Pintelaan 185 B-9000 Gent Belgium </div> <div> </div> <div> </div> <div> <div> <blockquote type="cite"><div><div class="h5"> <div>On 23 Jan 2017, at 15:30, Jinxia Guo <<a href="mailto:jinxia.guo2009@gmail.com" target="_blank">jinxia.guo2009@gmail.com</a>> wrote:</div> </div></div><div><div><div class="h5"> <div dir="ltr"> Hi guys, <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> Recently I’ve done some simulation with Y90 source in Gate7.2 develop version. Two settings are with the same camera, digitizer and output but respectively with normal ion source and fastY90 source. The energy distributions of singles in coincidences for each setting are shown below. It seems that the energy distribution with the normal ion source is very different with the fastY90 source. I thought they should be the same, but why the results actually are not? Anything wrong in the simulations setting? Thanks! The energy distributions of each setting. (1) fastY90 source (energy window: [420, inf]) (2) ion source (energy window:[420, inf]) <img width="358" height="245" id="m_-3362641330723701041gmail-图片_x0020_3" src="http://mail.126.com/js5/s?func=mbox:getMessageData&sid=aAZTfwjOLSXPrJsDMpOOQQhQcSixSmta&mid=206:1tbizhRo7VWmO8s-IAAAsD&part=5" style="border:0px"> <img width="392" height="243" id="m_-3362641330723701041gmail-图片_x0020_1" src="http://mail.126.com/js5/s?func=mbox:getMessageData&sid=aAZTfwjOLSXPrJsDMpOOQQhQcSixSmta&mid=206:1tbizhRo7VWmO8s-IAAAsD&part=9" style="border:0px;margin-right:0px"> (3) fastY90 source (energy window: [0, inf]) (4) ion source (energy window:[0, inf]) <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> <img width="417" height="254" id="m_-3362641330723701041gmail-图片_x0020_2" src="http://mail.126.com/js5/s?func=mbox:getMessageData&sid=aAZTfwjOLSXPrJsDMpOOQQhQcSixSmta&mid=206:1tbizhRo7VWmO8s-IAAAsD&part=4" style="border:0px;margin-right:0px"> <img width="354" height="261" id="m_-3362641330723701041gmail-_x0000_i1031" src="http://mail.126.com/js5/s?func=mbox:getMessageData&sid=aAZTfwjOLSXPrJsDMpOOQQhQcSixSmta&mid=206:1tbizhRo7VWmO8s-IAAAsD&part=3" style="border:0px;margin-right:0px"> （1）Setting1: simulation with fastY90 #-----------------Phantom-------------------------------- /gate/world/daughters/name cylinder_phantom /gate/world/daughters/insert cylinder /gate/cylinder_phantom/setMaterial Water /gate/cylinder_phantom/geometry/setRmax 10 cm /gate/cylinder_phantom/geometry/setRmin 0 cm /gate/cylinder_phantom/geometry/setHeight 30.5 cm /gate/cylinder_phantom/placement/setTranslation 0. 0. 0. mm /gate/cylinder_phantom/attachPhantomSD <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> #-----------------Source-------------------------------- /gate/source/addSource ionsrc fastY90 /gate/source/ionsrc/setActivity 0.1 Ci /gate/source/ionsrc/useDefaultHalfLife /gate/source/ionsrc/gps/angtype iso /gate/source/ionsrc/gps/number 1 <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/source/ionsrc/setMinBremEnergy 50 keV /gate/source/ionsrc/setPositronProbability 0.00003186 <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/source/ionsrc/gps/type Volume /gate/source/ionsrc/gps/shape Cylinder /gate/source/ionsrc/gps/radius 10 cm /gate/source/ionsrc/gps/halfz 15.0325 cm /gate/source/ionsrc/gps/centre 0. 0. 0. Mm /gate/source/ionsrc/gps/confine cylinder_phantom <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> #-----------------Physics-------------------------------- /gate/physics/addProcess Decay /gate/physics/addProcess RadioactiveDecay <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/addProcess PhotoElectric /gate/physics/processes/PhotoElectric/setModel StandardModel <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/addProcess Compton /gate/physics/processes/Compton/setModel StandardModel <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/addProcess RayleighScattering /gate/physics/processes/RayleighScattering/setModel PenelopeModel <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/addProcess ElectronIonisation /gate/physics/processes/ElectronIonisation/setModel StandardModel e- /gate/physics/processes/ElectronIonisation/setModel StandardModel e+ <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/addProcess Bremsstrahlung /gate/physics/processes/Bremsstrahlung/setModel StandardModel e- /gate/physics/processes/Bremsstrahlung/setModel StandardModel e+ <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/addProcess PositronAnnihilation /gate/physics/addProcess MultipleScattering e+ /gate/physics/addProcess MultipleScattering e- <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/setEMin 0.1 keV /gate/physics/setEMax 2.0 GeV /gate/physics/setDEDXBinning 220 /gate/physics/setLambdaBinning 220 <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/processList Enabled /gate/physics/processList Initialized <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> （2）Setting2: simulation with the ion source #-----------------Phantom-------------------------------- /gate/world/daughters/name cylinder_phantom /gate/world/daughters/insert cylinder /gate/cylinder_phantom/setMaterial Water /gate/cylinder_phantom/geometry/setRmax 10 cm /gate/cylinder_phantom/geometry/setRmin 0 cm /gate/cylinder_phantom/geometry/setHeight 30.065 cm /gate/cylinder_phantom/placement/setTranslation 0. 0. 0. mm /gate/cylinder_phantom/attachPhantomSD <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> #-----------------Source-------------------------------- /gate/source/addSource ionsrc /gate/source/ionsrc/setActivity 0.10 Ci /gate/source/ionsrc/gps/particle ion /gate/source/ionsrc/gps/ion 39 90 0 0 /gate/source/ionsrc/setForcedUnstableFlag true #/gate/source/ionsrc/setForcedHalfLife 230544 s /gate/source/ionsrc/useDefaultHalfLife /gate/source/ionsrc/gps/angtype iso /gate/source/ionsrc/gps/number 1 <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/source/ionsrc/gps/type Volume /gate/source/ionsrc/gps/shape Cylinder /gate/source/ionsrc/gps/radius 10 cm /gate/source/ionsrc/gps/halfz 15.0325 cm /gate/source/ionsrc/gps/centre 0. 0. 0. mm <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/source/ionsrc/gps/confine cylinder_phantom <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> #-----------------Physics-------------------------------- /gate/physics/addProcess Decay /gate/physics/addProcess RadioactiveDecay <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/addProcess PhotoElectric /gate/physics/processes/PhotoElectric/setModel StandardModel <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/addProcess Compton /gate/physics/processes/Compton/setModel StandardModel <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/addProcess RayleighScattering /gate/physics/processes/RayleighScattering/setModel PenelopeModel <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/addProcess GammaConversion /gate/physics/processes/GammaConversion/setModel StandardModel <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/addProcess ElectronIonisation /gate/physics/processes/ElectronIonisation/setModel StandardModel e- /gate/physics/processes/ElectronIonisation/setModel StandardModel e+ <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/addProcess Bremsstrahlung /gate/physics/processes/Bremsstrahlung/setModel StandardModel e- /gate/physics/processes/Bremsstrahlung/setModel StandardModel e+ <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/addProcess PositronAnnihilation /gate/physics/addProcess MultipleScattering e+ /gate/physics/addProcess MultipleScattering e- <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/setEMin 0.1 keV /gate/physics/setEMax 2.0 GeV /gate/physics/setDEDXBinning 220 /gate/physics/setLambdaBinning 220 <div style="font-family:arial,verdana,sans-serif;font-size:14px"> </div> /gate/physics/processList Enabled /gate/physics/processList Initialized Regards, Jinxia </div></div></div> _______________________________________________ Gate-users mailing list <a href="mailto:Gate-users@lists.opengatecollaboration.org" target="_blank">Gate-users@lists.opengatecollaboration.org</a> <a href="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users" target="_blank">http://lists.opengatecollaboration.org/mailman/listinfo/gate-users</a></div> </blockquote> </div> </div> </div> </blockquote></div> </div>