日本放射線技術学会雑誌
Online ISSN : 1881-4883
Print ISSN : 0369-4305
ISSN-L : 0369-4305
4.高エネルギー電子線治療における体内の不均質部補正法(I.外部照射におけるTarget Volumeへの照射精度)(第40回総会)
森 剛彦
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1984 年 40 巻 6 号 p. 932-941

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As to the factors which affect the dose calculation in tissue heterogeneity for an electron beam, the energy of the beam and the anatomical information of the inhomogeneous region will be more significant than the field size of the beam or the electron density of the tissue. It will be possible to calculate the dose at a point up to 10 cm depth in the lungs for 12 to 25 Mev (up to 7 cm for 12 Mev) electron beams with an accuracy of ±5% if the electron density has an accuracy of ±15%. As the result of our study, the accuracy of the dose calculation using the AET method and the Fermi-Eyges pencil beam method proposed by Hogstrom was X^^-=0.982±0.424,σn/X^^-×100=43.2% and X^^-=1.01±0.08,σn/X^^-×100=7.9%, respectively.

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© 1984 公益社団法人 日本放射線技術学会
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