PO-1601 GPU accelerated Monte Carlo activation calculations for PET range verification in proton therapy. - McNamara, K.; Schiavi, A.; Brzezinski, K.; Borys, D.; Gajewski, J.; Rucinski, A.; Makkar, S.; Hrbacek, J.; Weber, D.C.; Lomax, A.; Winterhalter, C. (Radiotherapy & Oncology, 2022)