1. A therapeutic device (400, 500), comprising: a radiation therapy device (402) for irradiating a subject area (438) of a subject (436), wherein the radiation therapy device comprises a radiation therapy source (408) for directing electromagnetic radiation to the target zone； - a mechanical positioning system (437) for positioning the support (434) of the subject； - a magnetic resonance imaging system (404) for collecting magnetic resonance data (458) from the visualization zone (432), the target zone being inside imaging zones, and the magnetic resonance imaging system contains a magnet (412) to create a magnetic field inside the imaging zone, and the radiation therapy device is configured to rotate the radiation therapy source at least partially around the subject's support； - processor (448) for controlling a therapeutic device； - a memory containing machine-executable instructions (468, 470, 472, 474, 476) for execution by the processor, and These instructions require the processor to repeatedly: - collect (100) magnetic resonance data using a magnetic resonance imaging system； - reconstruct (102) the magnetic resonance image (460) from the magnetic resonance data； - register (104) the location (462) the target zone in the magnetic resonance image； - generate (106) radiation therapy control signals (464) in accordance with the location of the registered target zone, and the source for radiation therapy irradiates the target zone using the radiation therapy control signals； and - generate (108) signals (466) for controlling mechanical positioning in accordance with the registered1. Терапевтическое устройство (400, 500), содержащее:- устройство (402) для лучевой терапии для облучения целевой зоны (438) субъекта (436), при этом, устройство для лучевой терапии содержит источник (408) для лучевой терапии для направления электромагнитного излучения в целевую зону；- механическую систему (437) позиционирования для позиционирования опоры (434) субъекта；- систему (404) м
