Use of a Superconducting Tunnel Junction for X-Ray Fluorescence Spectroscopy
Description:
A superconducting tunnel junction (STJ) in combination with a superconducting absorber of radiation may function as a highly resolving x-ray spectrometer. Electronic excitations, or quasiparticles, are created when a superconductor absorbs an x ray and are detected as an excess tunnel current through the junction. The number of quasiparticles created and the magnitude of the excess current is proportional to the energy of the absorbed x ray. This is similar to existing semiconductor-based spect…
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Date:
March 6, 2001
Creator:
Hiller, L
Partner:
UNT Libraries Government Documents Department