2015.09.02
What is Hard X-ray Photoelectron Spectroscopy?
The basic principle of hard x-ray photoelectron spectroscopy is similar to that of general XPS, which irradiates excitation light on the sample surface and measures the kinetic energy of the photoelectrons emitted. While the photon energy of the monochromatic AlKα x-ray source most commonly used in traditional XPS instruments is 1486.6 eV, the photon energy of the excitation source used in hard x-ray photoelectron spectroscopy is 5 to 8 keV, more than triple.
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