RADIATION THERAPY SYSTEM

A medical apparatus according to an embodiment includes an acquirer, an identifier, and a controller. The acquirer acquires a fluoroscopic image of an object from an imager which performs imaging by irradiating the object with an electromagnetic wave to generate the fluoroscopic image. The identifier identifies a target position of the object in the fluoroscopic image. The controller outputs an irradiation permission signal to a therapeutic device which irradiates the object with a therapeutic beam in a case where the target position identified by the identifier is settled within an irradiation permission range. The controller is configured to cause the imager to stop performing irradiation of the electromagnetic wave and cause the acquirer to stop acquiring the fluoroscopic image, in a case where a first switch is operated, and the controller is configured to cause the imager to stop performing irradiation of the electromagnetic wave and maintain a state in which the acquirer is capable of acquiring the fluoroscopic image, in a case where a second switch is operated.