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ID 11805
JaLCDOI
Sort Key
8
Title Alternative
Dose Distributions at Standard Diagnostic X-Ray Energy
FullText URL
Author
Miyake, Hideaki
Inamura, Keiji
Nakagiri, Yoshitada
Kadohisa, Shigefumi
Mikami, Yasutaka
Yamada, Toshiharu
Sugita, Katsuhiko
Hiraki, Yoshio
Abstract
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.
Keywords
Exposure Dose
Dose Distribution
Radiation Therapy Planning System
Density Correction
Scattering Correction
Publication Title
岡山大学医療技術短期大学部紀要
Published Date
1992-02-05
Volume
volume2
Publisher
岡山大学医療技術短期大学部
Publisher Alternative
School of Health Sciences Okayama University
Start Page
63
End Page
71
ISSN
0917-4494
NCID
AN10355371
Content Type
Departmental Bulletin Paper
OAI-PMH Set
岡山大学
language
日本語
File Version
publisher
NAID
Eprints Journal Name
fhs