Speaker
Description
To realize high-yield production of astatine-211 (At-211) for targeted alpha therapy, an existing simulation code for the Energy Recovery Internal Target (ERIT) scheme employing a Fixed-Field Alternating Gradient (FFA) accelerator and an internal target was extended to evaluate At-211 production yields. The validity of the extended code was verified by comparing the emittance growth induced by multiple Coulomb scattering and energy straggling with theoretical predictions. Furthermore, phase-space analyses demonstrated the existence of a sufficiently large dynamic aperture to support beam accumulation. Simulation results indicate that, under an injected beam current comparable to that employed at RIKEN, the predicted At-211 production yield exceeds previously reported experimental values.