mu-XRF is the microscopic equivalent of the well-established multielem
ent analytical technique. In this paper, after comparing the interacti
on of X-ray photons, electrons and protons with matter and an introduc
tion to synchrotron rings and microfocussing of X-rays, the instrument
ation for mu-XRF is discussed, both for laboratory source and synchrot
ron based setups and the analytical characteristics of mu-XRF are cont
rasted to that of other microanalytical techniques, Also, this issue o
f quantification of mu-XRF data is addressed; the applicability of the
method in archeological and geological analysis is illustrated.