<html><head></head><body><div class="ydp5e7e9fbbyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div><div dir="ltr" data-setdir="false">Dear gate user</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I have simulated the detector with tungsten and lead collimators, My aim is to assess which collimator material has more geometric (photons that pass through collimator hole), penetrated photons (photons that penetrate septa) and scattered photons which reaches the detector. Have used the bellow script to track the septal penetration<br></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><span class="ydp9ca577b4o">/</span><span class="ydp9ca577b4n">gate</span><span class="ydp9ca577b4o">/</span><span class="ydp9ca577b4n">output</span><span class="ydp9ca577b4o">/</span><span class="ydp9ca577b4n">analysis</span><span class="ydp9ca577b4o">/</span><span class="ydp9ca577b4n">recordSeptalPenetration</span> <span class="ydp9ca577b4n">true</span><span class="ydp9ca577b4o"><br></span></div><div dir="ltr" data-setdir="false"><span class="ydp9ca577b4o">/</span><span class="ydp9ca577b4n">gate</span><span class="ydp9ca577b4o">/</span><span class="ydp9ca577b4n">output</span><span class="ydp9ca577b4o">/</span><span class="ydp9ca577b4n">analysis</span><span class="ydp9ca577b4o">/</span><span class="ydp9ca577b4n">setSeptalVolumeName</span> <span class="ydp9ca577b4n">collimator</span></div><div dir="ltr" data-setdir="false"><span class="ydp9ca577b4n"><br></span></div><div dir="ltr" data-setdir="false"><span class="ydp9ca577b4n">My questions is</span></div><div dir="ltr" data-setdir="false"><span class="ydp9ca577b4n"> 1) Is it possible to visualize (track a photon visually) a penetrated phonon using GATE simulation?</span></div><div dir="ltr" data-setdir="false"><span class="ydp9ca577b4n"> 2) How do i analyses the the obtained numbers (as attached) from ROOT flags</span></div><div dir="ltr" data-setdir="false"><span class="ydp9ca577b4n"> 3) I want to know the percentage of geometric, penetration and scattered photons in each collimator<br></span></div><div dir="ltr" data-setdir="false"><span class="ydp9ca577b4n"><br></span></div><div dir="ltr" data-setdir="false"><span class="ydp9ca577b4n">Any comment/assistance will be highly appreciated<br></span></div><div dir="ltr" data-setdir="false"><span class="ydp9ca577b4n"><br></span></div><div dir="ltr" data-setdir="false"><span class="ydp9ca577b4n">Leonid</span></div><div dir="ltr" data-setdir="false"><span class="ydp9ca577b4n">PhD in Physic candidate<br></span></div><div dir="ltr" data-setdir="false"><div><br></div></div><div><br></div><div class="ydp5e7e9fbbsignature"><div><span style="color:rgb(91, 136, 40);"><br></span></div><div><span style="color:rgb(91, 136, 40);"><br></span></div><div><span style="color:rgb(91, 136, 40);"><br></span><span style="color:rgb(91, 136, 40);"><span style="font-weight:bold;"></span><span style="font-weight:bold;"></span><span style="font-weight: bold; text-decoration-line: underline; text-decoration-style: solid; text-decoration-color: currentcolor;"></span><span style="text-decoration-line: underline; text-decoration-style: solid; text-decoration-color: currentcolor;"></span><span style="font-weight:bold;"></span></span><span style="color:rgb(91, 136, 40);"></span><br><span style="color:rgb(91, 136, 40);"></span></div><div><br><span style="font-style:italic;"></span></div></div></div></div></body></html>