Scoring PET signal in proton therapy

[kwlibuaa (Kaiwen Li)]

Dear David,

Thanks for your reply!
I followed your advice and another topic

Position and yield ratio of the positron decay nuclide produced in heavy ion therapy

Dear Fluka Expert, I would like to simulate the process of heavy ion therapy, inject C ion into PMMA target, and record the position and yield ratio of the positron decay nuclide produced. How should I set up the score card? Thank you in advance

to score the activity of C11 and O15, but the output of these two are zero. I do not know where was wrong. I would appreciated it a lot if you could help check the attached .inp file.

And some more questions,

1. what is the definition of activity (for C11 and O15) here?
2. since the goal of mine is to obtain the PET signal (e+e- to gamma), but here is to score C11 and O15, and the e+ will move for some distance after the decay of C11 and O15 happens, is it accurate enough?
3. for scoring the activity of C11 and O15, when I set USRBIN type to X-Y-Z (BIN 22 and 23), It runs with errors, why?
4. for the RADDECAY card, when I set the decay to Active, it runs with errors, I can only use semi-analog mode. why?

proton_pet.inp (2.1 KB)