Accurate characterization of image intensifier distortion
作者:
Stephen Rudin,
Daniel R. Bednarek,
Roland Wong,
期刊:
Medical Physics
(WILEY Available online 1998)
卷期:
Volume 18,
issue 6
页码: 1145-1151
ISSN:0094-2405
年代: 1998
DOI:10.1118/1.596623
出版商: American Association of Physicists in Medicine
数据来源: WILEY
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.
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