Aspects of the inverse scattering problem in neutron specular reflection

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Hahn-Meitner-Inst Berlin, Berlin, Germany [1 ]
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Phys B Condens Matter | / 1-4卷 / 514-519期
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Inverse problems - Neutron scattering - Reflectometers - Substrates;
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摘要：
A two-step Marchenko inversion method is presented for samples mounted on a thick substrate, representing the substrate by a background potential. The inversion for complex potentials is discussed in regard to the elimination of negative wave numbers and the phase problem. The effect of a wave number cut-off in reflectivity measurements is illustrated.
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