Bulletin of Faculty of Health Sciences Okayama University Medical School
Published by Faculty of Health Sciences Okayama University Medical School

<Formerly known as>
岡山大学医療技術短期大学部紀要 (1巻-9巻)

撮影X線領域での線量分布

三宅 英昭 岡山大学医療技術短期大学部診療放射線技術学科
稲村 圭司 岡山大学医学部附属病院中央放射線部
中桐 義忠 岡山大学医療技術短期大学部診療放射線技術学科
門久 繁文 岡山大学医学部附属病院中央放射線部
三上 泰隆 岡山大学医学部附属病院中央放射線部
東 義晴 岡山大学医療技術短期大学部診療放射線技術学科 Kaken ID publons researchmap
山田 俊治 岡山大学医療技術短期大学部診療放射線技術学科
杉田 勝彦 岡山大学医療技術短期大学部診療放射線技術学科
平木 祥夫 岡山大学医学部附属病院中央放射線部
発行日
1992-02-05
抄録
Exposure dose has been indicated by surface dose or transit dose, but they could not indicate dose distributions inside the body. Modulex as the radiation therapy planning system was used for dose distributions at standard diagnostic X-ray energy. X-ray is low energy X-ray at standard diagnostic radiography, so alterations of the energy and the scattering dose distribution by absorbers are quite different from those at high energy X-rays. Mix-DP was put to the homogeneous tissue use, then Bone equivalent phantom or Lung equivalent phanton was put to the inhomogeneous tissue use. Density correction factors for inhomogeneous phantoms were gotten by the calculation of the water equivalent thickness. In Bone the inhomogeneous correction depended strongly on the bone thickness. In Lung it was in need of one density correction factor and the scattering correction method for the decrease of the back scattering. The calculated dose distributions by Modulex agreed with measured data when each correction was carried out, and it was indicated that those data apply to inclinical situations.
キーワード
Exposure Dose
Dose Distribution
Radiation Therapy Planning System
Density Correction
Scattering Correction
ISSN
0917-4494
NCID
AN10355371
NAID
JaLCDOI