| http://www.w3.org/ns/prov#value | - X-ray fluorescence may be established using a variety of mechanisms, but within this disclosure X-ray fluorescence can, depending upon context such as described with respect to FIG. 4 a, may relate to a high energy photon or particle in the form of the at least one applied high energy photon and/or particle 120 being applied to the target element, thereby raising the energy level of at least one o
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