CONTINUOUS SULPHUR ANALYSER Russian patent published in 2016 - IPC G01N23/83 

FIELD: physics.

SUBSTANCE: continuous sulphur analyser comprises an X-ray tube, a measuring cell and an X-ray detector. A filter is placed between the X-ray tube and the measuring cell, the said filter being made of foil, the material of which is selected from metals with atomic numbers from 42 to 49, wherein the minimum thickness b_min of the filter is not less than 50 mcm, and the maximum thickness b_max of the filter is determined from the condition $$\frac{I_0}{I_1}<200$$ per 1 W power of the X-ray tube, where I₀ is the intensity of the radiation of the X-ray tube, I₁ is the intensity of radiation passing through the filter.

EFFECT: reducing the loss of radiation intensity when the radiation passes from the X-ray tube to the detector, reducing exposure time and increasing the duty ratio of measurements.

2 cl, 1 dwg