yxgao
Dec7-03, 10:09 PM
In a hard sphere scattering problem, the differential cross section is R^2/4, and the total cross section is PI*R^2, where R is the radius of the sphere.
Assume there is a detector with a hole of area A, placed a distance D from the center of the sphere. The question is, how many particles hit the detector per unit of time if you shoot a beam of intensity I?
Assume there is a detector with a hole of area A, placed a distance D from the center of the sphere. The question is, how many particles hit the detector per unit of time if you shoot a beam of intensity I?