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Question Photon Propagation through 2 different material. 

Forum: Geometry
Date: 27 Nov, 2014
From: JungEun Elena Suh <JungEun Elena Suh>

Dear all

Hello,
Could you allow me to ask one question?

I have a radiator bar which made of fused silica.
This is for studying Cherenkov radiation.
If I shoot some particle through this radiator, it generates Cherenkov photons.
And, of course these photons are propagated inside the radiator bar with internal reflection. (Outside of radiator is vacuum. Some photons are go out when the incident angle is large.)

Now I want to add a block of glass on the one side of radiator.
This glass has higher refractive index than radiator.
So, I though that photon should be propagated through the glass.
However, this simulation doesn't finished for 2 whole days.

I didn't set reflection & efficiency parameter of glass.
I set border surface property between fused silica and glass, the optical surface is as below.
optsurface->SetType(dielectric_dielectric);
optsurface->SetFinish(polished);
opsurface->SetModel(unified);

new G4LogicalBorderSurface("rad_glass",radiator,glass,optsurface);
I didn't set any other surfaces.


What can I do in this case?
Should I set more parameters?


Thank you so much.
Have a nice day.

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1 Feedback: Re: Photon Propagation through 2 different material.   (Gumplinger Peter - 03 Dec, 2014)
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