Dear FLUKA experts,
I have simulated the reaction of protons on a calcium-40 target and measured the resulting activity using the USRBIN card configured for ACTIVITY (see attached photos), with an accompanying AUXSCORE card. The proton fluence is 10¹¹ protons per minute. I ran simulations using both 1 million and 2 million primary particles. However, the results are inconsistent: the activity obtained with 1 million primaries is twice as high as that obtained with 2 million primaries. This discrepancy leads me to question whether my results require some form of normalization. Could you please advise me on this issue?
Thank you in advance for your help.
