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PARTICLE BEAM SCANNING IRRADIATION SYSTEM AND PARTICLE BEAM SCANNING IRRADIATION METHOD
PARTICLE BEAM SCANNING IRRADIATION SYSTEM AND PARTICLE BEAM SCANNING IRRADIATION METHOD
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机译:粒子束扫描辐照系统及粒子束扫描辐照方法
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摘要
A particle beam scanning irradiation method includes the steps of calculating a planned irradiating particle count of a particle beam for each of irradiation spots, on the basis of a relative amount of particle beam irradiation and a prescription particle-beam dose determined from a particle-beam therapy plan; simulating an irradiation process of the particle beam at each irradiation spot, on the basis of the planned irradiating particle count and a beam current waveform of the particle beam, and calculating a particle count of the particle beam irradiating the diseased portion during a scan shift of the particle beam; correcting the planned irradiating particle count for each irradiation spot by using the irradiating particle count during the scan shift; converting the corrected planned-irradiation particle count into a count value used in a dose monitor; and irradiating the irradiation spot with the particle beam, on the basis of the converted count value.
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