Mammography Test Objects - Leeds Test Objects
These consist of a semi-circular test plate (radius 11cm) used in conjunction with a variable 6cm stack of Perspex plates which provide appropriate amounts of X-ray absorption, scatter and geometrical unsharpness.
Three types of test plate are available; TOR [MAS], TOR [MAX], TOR [MAM]. They are intended to be used for routine quality-control, but can also be used to investigate different mammographic techniques
or screen-film combinations etc.
A comprehensive instruction manual is provided for TOR's [MAX] and [MAS] and a separate instruction manual for TOR [MAM].
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