Dear esteemed FLUKA experts,
Good evening. I have recently embarked on utilizing FLUKA to explore the correlation between the proton beam intensity during the irradiation of a molybdenum target with 20 MeV protons and the activity of the interesting product within the target. My preliminary findings indicate a direct relationship: as the beam intensity increases, so does the activity of the product of interest.
However, I am aware that under the intense bombardment of high-power beams for a long time, the target undergoes radiation damage, which theoretically should counteract this apparent increasing trend. Yet, I find myself at a loss regarding how to incorporate the radiation damage effect of the target during the simulation process in FLUKA.
Could any of you kind experts provide guidance on how to address this aspect in FLUKA? Your insights would be greatly appreciated. Thank you very much for your time and expertise.
Dear Yue,
unfortunately, FLUKA cannot simulate the changes in materials due to radiation. (Except for isotope production, but even in that case each primary particle will see the unactivated material.)
Cheers,
David
Dear David,
Thank you very much for your prompt reply. If my understanding is accurate, the results simulated by the current version of FLUKA indeed confirm that the product activity escalates in tandem with an increase in beam intensity. With this in mind, I am eagerly anticipating whether there exists any method, maybe an empirical formula or others, that could factor in the ramifications of radiation damage. Your guidance on this intricate matter would be immensely appreciated. Thank you once again for your invaluable insights.
Best regards,
Yue Yu
Dear Yue,
unfortunately, I’m not familiar with modeling radiation damage in materials. I can only suggest to search the literature.
Cheers,
David