Test of the Quality of the X-ray Film

บทคัดย่อ

The author described the simple method for determination of the quality of the X-ray films by exposed it sequentially to X-ray with different exposure factors, developed and determined the density. The characteristic curve obtained from plotting the logarithm value of exposure factor (or mAS) against the density values is useful for evaluation of the quality of the X-ray films since it indicates the fog level , degree of contrast , sensitivity and the optimum exposure factor.