ACCURATE CHARACTERIZATION OF IMAGE INTENSIFIER DISTORTION

被引：74

作者：

RUDIN, S

BEDNAREK, DR

WONG, R

机构：

[1] Department of Radiology, State University of New York at Buffalo, School of Medicine and Biomedical Sciences, Buffalo, New York, 14215

来源：

MEDICAL PHYSICS | 1991年 / 18卷 / 06期

关键词：

II-DISTORTION; ELECTRON-OPTICAL ABERRATIONS; PHOTOCATHODE CURVATURE; GEOMETRIC DISTORTION; IMAGE INTENSIFIERS;

D O I：

10.1118/1.596623

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Image intensifier distortion due to photocathode curvature and electron optics is shown to be approximated by a simple two parameter odd-power polynomial. The accuracy of this fit was found to be far better than that of two other one parameter characterizations of distortion when applied to experimental data from four different model image intensifiers ranging in diameter from 9 to 14 in. The standard errors of the two parameter fits were less than 0.1 mm or 0.03% of the field of the IIs and were within the estimated measurement error.

引用

页码：1145 / 1151

页数：7

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