The Algebraic Approach to the Phase Problem for Neutron Scattering

Details The Algebraic Approach to the Phase Problem for Neutron Scattering The Algebraic Approach to the Phase Problem for Neutron Scattering

2004-01-27

arxiv.org/abs/math-ph/0401044v1

Physics

Mathematical Physics

34 pages

Scientific paper

The algebraic approach to the phase problem for the case of X-ray scattering from an ideal crystal is extended to the case of the neutron scattering, overcoming the difficulty related to the non-positivity of the scattering density. In this way, it is proven that the atomicity is the crucial assumption while the positiveness of the scattering density only affects the method for searching the basic sets of reflections. We also report the algebraic expression of the determinants of the Karle-Hauptman matrices generated by the basic sets with the most elongated shape along one of the reciprocal crystallographic axes.

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