[Gate-users] positron range not visible

[pkhateri]

Dear gate users,

I have a question regarding the effect of positron range in my 
simulation result. I am simulating a sphere source (r=0.3mm almost a 
point source) located in the center of scanner inside a cube of sides of 
10mm. I define the source as F18 (particle e+) or Na22 (ion) and for 
both types I check the result root files.

The problem is that I do not see any blurring in the source position. 
The histogram of the sourcePosX/Y/Z is limited to the range of [-0.3, 
0.3] which is exactly my source size. While I expect this range to be a 
bit larger than my source size due to the positron range.

If you have any idea why this happens, I would really appreciate it.

Bests,

Parisa