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<p class="MsoNormal">All – <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am trying to remove positron annihilation from a simulation but can’t get it to work. I have used the following physics setup:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/physics/addPhysicsList emstandard<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/physics/addProcess RadioactiveDecay<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/physics/removeProcess PositronAnnihilation e+<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in"><b>/gate/physics/removeProcess G4PositronAnnihilation e+<o:p></o:p></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">But I am still getting annihilation hits followed by gamma Compton scatter. I would like no annihilation photons to be generated.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I used the command <b>“</b><b>/gate/physics/processList Enabled”</b> and it does not list annihilation as being enabled. Does the physics list hide it until initialization? If so, how can I disable it?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you all,<o:p></o:p></p>
<p class="MsoNormal">Josh<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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