PROBLEM TO BE SOLVED: To provide a scanning irradiation method using a three-dimensional scanning method which enables accurate irradiation based on predetermined forms and radiation dosage even if the irradiation area is moved with a repetitive change of a position caused by biological activities such as breath and pulse.SOLUTION: The scanning irradiation method related includes the step S2 of measuring the radiation dosage, the step S3 of measuring the differential radiation dosage, and the step S4 of setting the amount of radiation dosage, and the step S3 of measuring the differential radiation dosage, and the step S4 of setting the amount of radiation dosage are repeatedly performed until the predetermined conditions are satisfied.COPYRIGHT: (C)2009,JPO&INPIT【課題】呼吸や脈拍などの生体活動による反復的な位置の変動に伴って照射領域が動いてしまう場合であっても、予め設定された形状および線量に基づいて正確な照射を行うことのできる、3次元スキャニング法を用いたスキャニング照射方法を提供する。【解決手段】本発明に係るスキャニング照射方法は、線量算出ステップS2と、差分線量算出ステップS3と、照射線量設定ステップS4と、を含み、所定の条件を満たすまで差分線量算出ステップS3および照射線量設定ステップS4を繰り返して行う。【選択図】図1
