CPC G01N 23/223 (2013.01) [G21K 1/06 (2013.01); G01N 2223/076 (2013.01); G01N 2223/635 (2013.01); G21K 2201/062 (2013.01); G21K 2201/064 (2013.01)] | 22 Claims |
1. An X-ray fluorescence analyzer, comprising:
an X-ray tube for emitting incident X-rays in a direction of a first optical axis,
a first radiation detector,
a slurry handling unit configured to maintain a constant distance between a sample of slurry and said X-ray tube,
a first crystal diffractor located in a first direction from said slurry handling unit, said first crystal diffractor being configured to separate a predefined first wavelength range from fluorescent X-rays that propagate into said first direction, and configured to direct the fluorescent X-rays in the separated predefined first wavelength range to said first radiation detector, wherein:
the X-ray tube has an input power rating of at least 400 watts,
the first crystal diffractor comprises a pyrolytic graphite crystal,
an optical path between said X-ray tube and said slurry handling unit is direct with no diffractor therebetween, and
said slurry handling unit comprises a sample chamber having a sample window in a wall of said sample chamber for allowing X-rays to pass through while keeping said sample of slurry within said sample chamber.
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