Importance

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Abstract

There is disclosed a dosimeter to be used in connection with slit radiography and comprised of a gas filled chamber with one side wall provided with a plurality of X-ray transparent strip-like electrodes extending substantially transversely to a longitudinal direction of the oblong-shaped casing and another side wall provided with wire electrodes extending parallel to such longitudinal direction of the oblong-shaped casing wherein each of the strip-like electrodes generates a signal representative of intensity of ionizing radiation and wherein the strip-like electrodes are divided into a number of groups, signals from the strip-like electrodes belonging to each group are combined to provide a control signal for a respective attenuation element.

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First Claim