[Gate-users] Doubt with surface finish illumination in DETECT2000

[green light]

Dear gaters:

        In DETECT2000 user's manual, it is said that "The value of the
reflection coefficient is the probability that, if a photon escapes from
the surface, it is returned to the original medium by Lambertian reflection."
when talking about POLISH surface finish.

        "Lambertian reflection" shows that there are diffuse reflections when
phontons get to the POLISH surface . But  is also said ," If reflection is
selected, the angle of reflection is set equal to the angle of incidence.
This shows specular refletions happen. It seems the two sentences conflict.


         I'll appreciate for your help.
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