STUDY ON A FEW FACTORS AFFECTING RADIOGRAPHY QUALITY

Abstract

Many factors have been found to affect radiography quality. A few of the factors were studied and the following conclusions reached : 1. The relation between X-ray absorption dose of a filter and radiography quality : A filter composed of 0.5 mm Al + 0.05 mm Cu was found to be the most suitable for the purpose of decreasing the X-ray absorption dose and improving the radiography quality. 2. The relation between the front part of the cassette and radiography quality : The front part of the cassette made of Al proved to be the best from the view point of durability and X-ray absorption dose. 3. The relation between blende and radiography quality : When blende was used, in order to improve the radiography quality, it was necessary to remove the front plate of the cassette and place blende tightly on the screen. 4. The relation of density to the distance between blende and the screen : 5. The relation of fluorescent brightness to the distance between blende and the fluorescent screen : When the distance was 30 mm, brightness was maximum and there most desirable.