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Holographic moire deflectometry—A method for stiff density fields analysis

1984; American Institute of Physics; Volume: 44; Issue: 8 Linguagem: Inglês

10.1063/1.94922

1520-8842

J.N.M. Stricker, J. Politch,

Advanced X-ray Imaging Techniques

This letter presents a method for the analysis of stiff density fields in which weak density gradients as well as strong ones, pointing in different directions, exist. Holographic techniques are used to freeze the deviated rays of a collimated beam traveling through a phase object. The hologram is post analyzed by the ‘‘moire deflectometry’’ method, where the sensitivity, the spatial resolution, and the direction along which the density gradients are measured, may easily be changed and adjusted to the different density regions in the field. It was found that this technique is very useful for short duration stiff fields where density mapping during one pulse is desired.