Scheme for x-ray tracing in capillary optics.
A set of trigonometric equations is derived for deterministic x-ray tracing in capillaries. A variety of capillary shapes is encompassed by this approach. The resulting reflectivity coefficients, gain factors, and angular beam divergence are determined. The results can also be applied to the case of neutron and proton guiding in narrow pipes.
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Kuczumow
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Larsson