Method, controller and system for controlling dose in radiotherapy

Abstract

A method, controller, and system for controlling a radiation dose in radiotherapy of a patient and a computer storage medium are provided. The method includes: irradiating rays to a target area of the patient through a collimator; and keeping, after a source carrier starts to separate from the collimator in a process of controlling separation of the source carrier and the collimator, timing radiation of the rays or calculating the radiation dose of the rays such that the radiation dose of the rays received by the patient is equal to a radiation dose required for the radiotherapy. Therefore, the radiation dose of the rays received by the patient in an entire treatment process may reach the radiation dose actually required during the radiotherapy, thereby improving a radiation dose control accuracy and a treatment effect during the radiotherapy.

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