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degree of sharpness of structural lines on a radiograph

ability to visualize recorded detail when image contrast and optical density are optimized
how well the radiographers see the image

a measure of the degree of radiographic film darkening

sensitivity of the film to x-ray
bpth influences resolution and noise

geometric factors

if the object on the radiograph appears bigger than the represented object
it is the size and shape distortion

to avoid magnification, use:

SID standard for chest

SID standard for routine examination

SID standard for special studies

when the part is distorted, _ is also reduced

types of distortion

unequal magnification of different portions of the same object

conditions that contributes to shape distortion

it will appear more distorted

reduction of the image size

increase in foreshortening as the _ and _ increases

longer in image size

misinterpretation in the image of the actual spatial relationship among the objects

refers to the blurred margin at the edge of the objects
results to the loss of sharpness
it is the most important factor for determining spatial resolution

variation of radiation intensity across x-ray field and caused by attenuation of x-rays

focal spot is small on the _ side and large on the _ side

it is when patient moved during exposure

procedures to reduce motion blur

tools for improved radiographic quality

Requires that the analytical structure under investigation be placed as close to IR
practical and that the axis of this should lie in a plane of the
CR should be incident of the center of the structure
The patient must be immobilized effectively to minimize motion blur

principles of image receptor

selection of technical factors