|Message: Try to get X ray production direction but angle seem to be wrong||Not Logged In (login)|
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I want simulate the electron bombard the target(tungsten)to produce X ray, I want to get the direction of X ray production.Details are described in the attachment.
I use the momentum to get the angle, codes likes blow:
G4ThreeVector direction = track->GetMomentumDirection(); G4double theta = direction.theta(); G4double phi = direction.phi();
Question 1: The result of theta is as follows(see attachment), we can see there is no X ray production in the 0 degree and 180 degree. Do I wrong to use the Momentum to get the X ray production direction?
Question 2: Where is the reference point for the MomentumDirection? Is it in relation to the interacting electron vector at the point of photon generation or something else entirely?
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