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Bragg diffraction from an Ag/Ni multilayer was used to determine independently both the real and imaginary parts of the anomalous scattering factor (ASF) around the Ni LIII and LII edges in the soft-X-ray range. Huge resonant variations were observed with 
reaching 55
and 
decreasing to -63 
at the Ni LIII edge. The independent measurements of and are tested for coherency using the Kramers-Kronig relation. The values are also compared with those derived from X-ray absorption methods such as total electron yield and fluorescence yield measurements.
reaching 55
and 
decreasing to -63 
at the Ni LIII edge. The independent measurements of and are tested for coherency using the Kramers-Kronig relation. The values are also compared with those derived from X-ray absorption methods such as total electron yield and fluorescence yield measurements.
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