X-Ray Optics for Synchrotron Radiation

Abstract

This paper presents the main optical devices used to prepare a beam from X-ray synchrotron source: monochromators, flat or curved in order to intercept a larger angular divergence at the sample, mirrors and, finally, optics for polarized X-ray experiments. Since X-ray optics is based either on total reflection or on diffraction by perfect crystals, the basic fundamental results of X-ray dynamical theory, which are necessary to understand the reasons why one device should be chosen rather than the other, are also presented.

Introduction au rayonnement synchrotron et à ses avantages

“…Freund B l'kcole d'Aussois [16], [24]) ou les actes des confkrences internationales sur l'instrumentation au prks du RS [25,26]. L'klkment indispensable de cette optique est le monochromateur qui sklectionne la longueur d'onde utilisk dans le reste de l'expkrience.…”

Icosahedral quasicrystals applied as a harmonic-free crystal analyser

“…This expansion has been possible thanks to the advent of synchrotron radiation sources and their speci®c properties. In particular, two characteristics of synchrotron sources, namely the large range of energy emission available for tuning and the high brilliance, have necessitated reviews of the beamline optical elements (Malgrange, 1992;Matsushita & Hashizume, 1992;Freund et al, 1990;Paquin & Howells, 1997;Freund, 1998). The large energy spectrum of synchrotron radiation implies the necessity of monochromatization for experiments in which only one particular wavelength with a given spread is required at a time.…”