A system and method for radiotherapy patient throughput is described. The system includes carts for supporting and moving patients between stations. A mounting and immobilization station allows mounting and immobilizing the patients on the carts. A registration station produces imaging data related to the patients. A waiting station provides waiting space for the carts. A treatment station irradiates the patients on the carts according to a treatment plan. A dismounting station allows releasing and dismounting the patients from the carts.