Light meter operation apparatus error estimation device and light meter operation apparatus error estimation

摘要

PROBLEM TO BE SOLVED: To improve treatment accuracy by complementing a computer simulation of a radiotherapy apparatus.SOLUTION: According to an embodiment, an exposure calculation error estimation apparatus includes: an input apparatus; a calculation value/measurement value relative error arithmetic unit 112; a calculation value/measurement value relative error storage unit; an input parameter covariance error matrix evaluation unit 300; an input parameter covariance error matrix storage unit; an object system sensitivity coefficient vector arithmetic unit 114; an object system sensitivity coefficient vector storage unit; a simulation experiment system sensitivity coefficient vector arithmetic unit 113; a simulation experiment system sensitivity coefficient vector storage unit; a linear combination constant arithmetic unit 116 for calculating a linear combination constant α; and an object system physical quantity uncertainty arithmetic unit 118 for calculating input parameter initiating physical quantity uncertainty by using a relative difference Estored in the calculation value/measurement value relative error storage unit, an input parameter covariance error matrix W, an object system sensitivity coefficient vector S, and a simulation experiment system sensitivity coefficient vector S.SELECTED DRAWING: Figure 2