engleski

Geometrical aberrations in the von Hamos and the plane Bragg crystal spectrometers

Numerical calculations of the effect of the finite dimensions and orientations of source and crystal are presented for plane and von Hamos Bragg crystal are presented for plane and von Hamos Bragg crystal spectrometers for , combined with a position sensitive (X-ray) detector. Analytical studies of all effects are provided. It is shown that some parameters can produce line shift and asymmetries. A numerical model for an X-ray diffraction ray-tracing procedure for a crystal Bragg spectrometer is described.

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