<div dir="ltr">Hello again Gate users,<div><br></div><div>I am trying to write a simulation using optical photons and know that I need to define the surfaces in my system. I am using the latest version of VGate to do this. However, when I try to define a surface in the format of /gate/volume1/surfaces/name, I get an error saying 'Command not found.' My hunch is that VGate does not have the optical physics turned on. Is this true? and how would I go about enabling this option in VGate?</div>
<div><br></div><div>Thank you,</div><div><br></div><div>-Amy</div></div>