限定された測定データを用いたブートストラップ法による線量分布の再構成

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  • Reconstruction of Dose Distribution by the Bootstrap Method Using Limited Measured Data.

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This paper describes an actual application of two-dimensional dose distribution reconstruction by the bootstrap method using restricted data. The analysis was done by using only 18 measurements on the 30×60 grid in the area around the Chernobyl nuclear power plant. The results give us fundamental knowledge about the actual application of the bootstrap method for the two-dimensional reconstruction. A one-dimensional simulation was also used to compare the properties of three techniques: Student's t distribution method, the usual bootstrap method, and a modified bootstrap method with weighting functions. This comparison gave us knowledge about the interval estimation, about the improved method with weighting factors, and about the reliability of the methods. The advantage of the bootstrap methods is clear when the number of data is small.

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