Radioactive waste processing and medical isotope harvesting requirements for a New Hot Cell at TRIUMF

TRIUMF, Canada's particle accelerator centre, uses 480 MW protons to produce rare isotope beams (RIB) through the bombardment of Isotope Separation On-Line (ISOL) targets. These RIBs support a diverse experimental program in nuclear physics, astrophysics, material science, biology, and nuclear medical. To expand TRIUMF's scientific output, the Advanced Rem Isotope Laboratory (ARIEL), a next-generation high-power ISOL facility utilizing both proton and electron driver beams, is currently being designed. Building from experience at existing facilities, ARIEL will follow a modular design paradigm whereby all serviceable beamline equipment is supported below discrete shielding blocks. Optimized for nuclear spallation reactions, far less than 30% of proton beam power is deposited in the ISOL target, with the remaining beam impining on a cooled copper beam dump. To extend functionality, the ARIEL proton irradiation infrastructure will be leveraged to parasitically produce alpha emitting medical isotopes by integrating a medical target station into the beam dump, as shown in. Thorium target must be transferred to end from the target station remotely and without disturbing surrounding shielding to allow for uninterrupted operation of the ISOL target. This will be accomplished using a 35 m pneumatic tube transfer system connecting the medical target station to a hot cell with Isotope processing capabilities