Abstract
It is common practice to discuss magnification radiography in relation to the magnification of objects located in a plane parallel to the film plane. In this study a new aspect of magnification radiography was introduced which relates to the magnification of objects located in a plane perpendicular to the film plane. This new concept is called the longitudinal magnification. It was shown theoretically that this is approximately equal to the square of the conventional magnification. This is confirmed experimentally from radiographs of square wave test objects. It was shown that this great longitudinal magnification results in image resolution much higher than that obtained by optical magnification. It was concluded that radiographic magnification presents a unique advantage for the imaging of structures located in a plane perpendicular to the film.
Published Version
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