soft-x-ray appearance potential spectroscopy

soft-x-ray appearance potential spectroscopy

[′sȯft ¦eks‚ra ə′pir·əns pə¦ten·chəl spek′träs·kə·pē]
(spectroscopy)
A branch of electron spectroscopy in which a solid surface is bombarded with monochromatic electrons, and small but abrupt changes in the resulting total x-ray emission intensity are detected as the energy of the electrons is varied. Abbreviated SXAPS.