source.f

dear fluka users,

I'm just a beginner with the use of user routines, in particular source.f.
for debug purposes I was trying to put in my source-1cm.f file (attached)
a "write" command to print the coordinates and the energy of each primary
particle on a file, but it doesn't work

could you please tell me if it's possible to do it and how?

thanks so much in advance

all the best

francesca