FIELD: physics.
SUBSTANCE: dosage rate is controlled in an X-ray system which has an X-ray generator which powers an X-ray tube for generating X-rays, and apparatus for detecting X-ray intensity distribution passing through an object subject to X-ray filming by carrying out steps on which the actual dosage rate of the said X-rays passing through the object is determined, the optimum dosage rate is determined relative the said object, the said actual dosage rate is compared with the said optimum dosage rate which depends on the thickness of the said object and the said actual dosage rate is adjusted so that it essentially coincides with the said optimum dosage rate.
EFFECT: possibility of adjusting dosage rate for any thickness of a patient without any previous information on the patient or type or analysis.
10 cl, 9 dwg
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