Date: Nov 20, 2012 10:21 AM
Author: machiel
Subject: Projection of isotropic 3D radiation on flat screen

Hi, 

When I have an isotropic point-like source that radiates isotropically in 3-D space, how can I calculate the number of events that reach a screen a
certain distance away, with the probability as a function of (transversal) x and/or y on that screen.
Hence, I want to know how to derive a function for the amount of events that reach a certain region on a flat screen, when the origin of these events is some isotropic point-like source.
Any help would very much be appreciated.
Best regards,

Machiel