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X-ray fluorescence
X-ray fluorescence (XRF)
is the emission of characteristic "secondary" (or fluorescent)
X-rays
from a material that has been excited by bombarding with high-energy X-rays or
gamma rays
. The phenomenon is widely used for
elemental analysis
and
chemical analysis
, particularly in the investigation of
metals
,
glass
,
ceramics
and building materials, and for research in
geochemistry
,
forensic science
,
archaeology
and art objects such as
paintings
and
murals
.
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