The Design for the New Image Quality Indicator of Duplex Wire Type

The theory for designing image quality indicator of duplex wire type was given on the basic theory of radiography. The theory of design had been shown as ture by the experiment. The new image quality indicator of duplex wire type enabled not only to determine more wide unsharpness value than the standard type, but it cleared out also the problem that the value of unsharpness determined was only specific by standard image quality indicator of duplex wire type.