What is a performance criterion for screen/film contact testing?

A performance criterion for screen/film contact testing encompasses both the need for a clear visual inspection of the image and the absence of visible artifacts.

When conducting screen/film contact tests, it's crucial to ensure that the image produced is sharp and clear. A clear visual inspection of the image allows operators to evaluate how well the image has been captured, which is vital for accurate diagnosis. Any blurriness or lack of definition would indicate insufficient contact between the screen and film, which could compromise the quality of the radiographic results.

Moreover, the absence of visible artifacts is equally important. Artifacts can arise from various sources, including improper contact, dust, or other contaminants, which can obscure critical details in the image. Ensuring that there are no visible artifacts maintains the integrity and reliability of the radiographic image.

Combining both the clarity of the image and the absence of artifacts provides a comprehensive performance criterion that helps in assessing the quality of screen/film contact. Thus, selecting both criteria as essential for effective screen/film contact testing is sound practice in the field of radiography.