[Gate-users] Not generating optical photons

[Amy Meldrum]

Gate users,

After much experimentation I believe I believe I have managed to solve the
issue of having scintillation with an alpha source. I needed to include the
proper physics needed for alpha particle interactions. I used the physics
included in the hadrontherapyStandardPhys.mac in addition to Rayleigh
scattering, Scintillation, and the optical physics processes.

Thank you very much to all who helped solve this problem.

-Amy


On Mon, Jan 20, 2014 at 1:53 PM, Amy Meldrum <ameldru at g.clemson.edu> wrote:

> Vesna,
>
> Yes, I have re-compiled VGate to include optical processes. Right now I am
> wondering if something is wrong with how I attached sensitive detectors and
> attaching volumes to levels of the OpticalSystem.
>
> -Amy
>
>
> On Mon, Jan 20, 2014 at 1:45 PM, Vesna Cuplov <vesna.cuplov at gmail.com>wrote:
>
>> Hi Amy,
>>
>> Did you turn the Optical flag on when compiling vgate? Could you
>> cross-check.
>>
>> vesna
>>
>> On Mon, Jan 20, 2014 at 5:32 PM, Amy Meldrum <ameldru at g.clemson.edu>wrote:
>>
>>> Gate Users,
>>>
>>> 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.
>>>
>>> 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.
>>>
>>> For physics I have:
>>> /gate/physics/addProcess Scintillation
>>> /gate/physics/addProcess OpticalAbsorption
>>> /gate/physics/addProcess OpticalRayleigh
>>> /gate/physics/addProcess OpticalBoundary
>>> /gate/physics/processList Enabled
>>>
>>> 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?
>>>
>>> Thank you for helping,
>>>
>>> -Amy
>>>
>>> _______________________________________________
>>> Gate-users mailing list
>>> Gate-users at lists.opengatecollaboration.org
>>> http://lists.opengatecollaboration.org/mailman/listinfo/gate-users
>>>
>>
>>
>>
>> --
>> Dr. Vesna Cuplov
>> http://v-cuplov.net
>>
>
>
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