Japanese Journal of Radiological Technology
Online ISSN : 1881-4883
Print ISSN : 0369-4305
ISSN-L : 0369-4305
2. Application of Star Test Pattern in the Quality Guaranty of Imaging System
Hesheng ChenZixi Yu
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1992 Volume 48 Issue 3 Pages 471-

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Abstract

Tranditional radiographic techniques also have important value in X-ray imaging techniques. The inspection of imaging ability of X-ray tube is a important factor. We use star test pattern to measure the size, resolution and expension of effective focal spot. However there is no unanimous opinion about the magnification rate when various sizes of focal spot are measured by means of star test pattern. The magnification rate and the basic principle of magnification technique for different focal spots are discussed in this paper.

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© 1992 Japanese Society of Radiological Technology
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