x-ray absorption near-edge structure
x-ray absorption near-edge structure[′eks ‚rā əb′sȯrp·shən ¦nir ‚ej ′strək·chər]
A ripplelike structure in the x-ray absorption spectrum of a substance, at energies just above the absorption edge associated with liberation of core electrons into the continuum, and much closer to the absorption edge than the energies associated with extended x-ray absorption fine structure. Abbreviated XANES.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.