[20p-B301-1~13] 7.1 X-ray technologies

[20p-B301-13] Phase correction in XAFS analysis: Atomic distance evaluation by a model-free method

〇Masashi Ishii¹ (1.NIMS)

Keywords:X-ray absorption, phase shift, Radial structure function

In conventional XAFS analysis, experimentally obtained oscillation structure is Fourier-transformed to the real-space, and following that, a fitting assuming a local structure is performed to obtain an atomic distance. The structure assumption is obviously disadvantage for objective analysis. In this report, we propose a new technique in which the atomic distance can be directly evaluated with mathematical process without structure model.