Method for determining the function representing the effect of non-reciprocity of a radiographic film
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United States of America Patent
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Sep 13, 1994
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N/A
app pub date -
Jul 5, 1991
filing date -
Jul 6, 1990
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Abstract
The invention relates to radiology systems and, more particularly in such systems, to a method that enables the effect of non-reciprocity of the radiographic film to be determined. This effect of non-reciprocity is expressed by coefficients CNRD(d.sub.i) which are a function of the photon dose rate (d.sub.i) on the film, the coefficients CNRD(d.sub.i) being obtained from the coefficients CNRT(t.sub.i) and the determination of the reference lumination L.sub.ref received by the film.
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