METHOD FOR DOSE DETERMINATION IN COMPUTERIZED TOMOGRAPHY

被引：5

作者：

YALCINTAS, MG ^{[1
]}

NALCIOGLU, O ^{[1
]}

机构：

[1] UNIV CALIF IRVINE, DEPT RADIOL SCI, IRVINE, CA 92717 USA

来源：

HEALTH PHYSICS | 1979年 / 37卷 / 04期

关键词：

D O I：

10.1097/00004032-197910000-00006

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A method for exposure measurement in X-ray computerized tomography (CT) is discussed. The sequential spatial variation in exposure due to the scanning motion used in CT necessitates a different method of dose determination than conventional radiography. In this method, dose is determined by integrating the measured exposure profile in a direction perpendicular to the slice plane. Accuracy is ensured by sampling the exposure profile at very small distances. Lengths of thin polyethelene tubing filled with powder LiF are used as thermoluminescent dosimeters in the exposure measurements. Experimental results applying this method to an Alderson Rando Phantom are presented. © 1979 Health Physics Society.

引用

页码：543 / 548

页数：6

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