1. A medical device (100) comprising: - a device (102) for radiotherapy irradiation volume (146) of the target - magnetic resonance unit (106) to collect magnetic resonance data and motion tracking of magnetic resonance image data of the subject ( 144), at least part of which is located within the volume (138) imaging the volume (146) of the target is within the volume (138) imaging - a memory for storing the machine-executable instructions (180, 182, 186, 188, 194 ) u processor (156) for controlling the medical device (100), wherein execution of the machine-executable instructions (180, 182, 186, 188, 194) causes the processor (156) to receive the plan (168) therapy, a predetermined volume (146) inside the target volume (138) imaging and the radiation dose rate emitted from the device (102), radiation therapy, and repeatedly: - collect magnetic resonance data and motion tracking of magnetic resonance image data by controlling the magnetic resonance unit (106) with alternating pulse sequence - manage the ma Twomey (102) radiation therapy for the volume (146) irradiating a target in accordance with the plan (168) therapy - calculate a dose distribution map characterizing the radiation dose received subject (144) from the device (102) of radiation therapy using magnetic resonance data tracking and the plan (168) therapy - reconstruct a diagnostic image using the magnetic resonance image data, - displaying on the display the diagnostic image and the dose distribution map - receive data corrections therapy plan s user interface u adjust the plan (168) therapy in accordance with these adjustments terapii.2 plan. The medical device according to Claim. 1, wherein1. Медицинское устройство (100), содержащее:- устройство (102) лучевой терапии для облучения объема (146) мишени- магнитно-резонансный модуль (106) для сбора магнитно-резонансных данных отслеживания движения и магнитно-резонансных данных изображения из субъекта (144), по меньшей мере, часть которого расположена вну