Radiotherapy device of dynamic tumor and radiotherapy program of dynamic tumor

摘要

Topic Not giving the burden to the body of the patient and detecting tumor position in high accuracy, the tumor is detected continually at high detection efficiency and radiation is irradiated to only the malignant tumor effectively and the radiotherapy device of the dynamic tumor which can decrease the being bombed quantity and the radiotherapy program of the dynamic tumor are offered.Solutions It stops controls the tumor position distinction expedient 44 which is distinguished whether or not calculates counting rate the threshold relative expedient 43 which compares with the counting rate of the disappearance line which is acquired from line counting rate calculation expedient 41 and line counting rate calculation expedient 41 and the threshold of the counting rate which is acquired from displacement threshold memory expedient 32 and the tumor displaced to outside radiation lighting spot the disappearance line is detected line detection expedient the displacement threshold memory expedient on the basis of the detection signal of 32 which remembers the threshold of 20 and counting rate and the disappearance line and radiation lighting, or the stop order signalIt possesses with the lighting control means 45 which it outputs.