X-RAY FLUORESCENCE ANALYZER SYSTEM AND A METHOD FOR PERFORMING X-RAY FLUORESCENCE ANALYSIS OF AN ELEMENT OF INTEREST IN SLURRY

摘要

X-ray fluorescence analyzer system comprises an X-ray tube (402),a slurry handling unit (201),and a crystal diffractor (601) located in a first direction from said slurry handling unit (201). The crystal diffractor (601) separates a predefined wavelength range from fluorescent X-rays (207) that propagate into said first direction, and directs the fluorescent X-rays in the separated predefined wavelength range to a radiation detector (602, 1605). The crystal diffractor (601) comprises a pyrolytic graphite crystal (603). Said predefined wavelength range comprises characteristic fluorescent radiation of a predefined element of interest with its atomic number Z between 41 and 60 the ends included. An energy resolution of said radiation detector (602, 1605) is better than 600 eV at the energy of said characteristic fluorescent radiation.