Processing medical X-ray film at ambient temperatures.
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Technology, Radiologic↗
Biomedical subjects
R E Wayrynen
Publications and source records attributed to R E Wayrynen.
A developer solution for tank processing of x-ray film under ambient, tropical conditions.
A modification of a proprietary 90-sec. x-ray-film developer which permits its use as a hand-tank developer at ambient temperatures between 21.6 degrees-30.6 degrees C (80 degrees-100 degrees F) is described. This processing technique is useful in tropical countries where the control of developer temperature is particularly difficult.
Photography↗
Film-screen sharpness in complex motion tomography.
An unsharp radiologic image is created in tomography by the combined motion of the x-ray tube and the film-screen cassette. This image is generally recorded at angles other than normal to the film-screen plane. A metbd for determining the influence of this recording angle on film-screen sharpness is described. The method involves imaging an edge target at various angles between the x-ray beam and the film-screen plane. The MTF is then calculated from the edge images. The effect of film-screen sharpness and quantum noise on subjective image quality in temporal bone tomography is discussed.
Technology, Radiologic↗