<div dir="ltr">Gate Users,<div><br></div><div>In an attempt to simplify my simulation to identify the problems, I am using VGate to model an alpha source, a plastic scintillator, and a PMT. However, when I run my simulation nothing happens; no optical photons are generated.</div>
<div><br></div><div>I use the OpticalSystem, and set my scintillator material to be a crystalSD. I have defined my surfaces and have the surface going from my scintillator to PMT set as perfect_apd (dielectric-metal). My alpha source is placed just above the scintillator. </div>
<div><br></div><div>For physics I have:</div><div><div>/gate/physics/addProcess Scintillation</div><div>/gate/physics/addProcess OpticalAbsorption</div><div>/gate/physics/addProcess OpticalRayleigh</div><div>/gate/physics/addProcess OpticalBoundary</div>
<div>/gate/physics/processList Enabled</div></div><div><br></div><div>I am at a loss as for why nothing seems to happen with my simulation. Is there something I am missing or forgot to define? </div><div><br></div><div>Thank you for helping,</div>
<div><br></div><div>-Amy</div></div>