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Idea relectance index versus optical photon energy.(to be continued) 

Forum: Processes Involving Optical Photons
Date: 30 Sep, 2015
From: sauvestre <sauvestre>

Hello,

I forgot to say that i did not set any values of reflectivity

for the TiO2 paint and my problem is maybe there.

In the TNS paper i read too quickly at first, one can read:

"For an optical simulation to be performed in GATE, THE USER HAS TO DEFINE the surface by selecting the surface type (i.e., dielectric-to-dielectric or dielectric-to-metal), the surface finish (i.e., polished or ground), the refractive indices for the two materials defining the surface, THE REFLECTIVITY OF THE REFLECTOR attached to the surface (which can either be set as a Lambertian or a specular reflector), and the probabilities for each of the four surface reflection types."

Am I right?

Do i have to set transmittance also if there is no absorption?

Does it mean that if there are no data set the reflectivity in case of

a dielectric_metal interface is 100 by default%? This is what i observe.

Thanks in advance for any answer.

Best regards.

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