A versatile three/four crystal X-ray diffractometer for X-ray optical elements: Performance and applications

Finn Erland Christensen, Allan Hornstrup, E. Jacobsen, P. Jonasson, M.M. Madsen, H.W. Schnopper, Niels Jørgen Stenfeldt Westergaard, P. Ørup

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

A versatile X-ray diffractometer for the study of X-ray optical elements such as grazing incidence mirrors, crystals and X-ray gratings has been built and put into operation at the Danish Space Research Institute. The diffractrometer is built on a 1.5 m long granite bench with the X-ray source located at one end of the bench where it can be rotated around a fixed vertical axis. The beam defining elements are perfect crystals of Si, Ge or quartz. With these it is possible to define a highly collimated beam of a few arcsec fwhm in the scattering plane. Examples of measurements on various X-ray optical elements are presented. The deconvolution of the experimental data is discussed in general terms and as an example the results of a calculation of the diffractometer resolution function for a four crystal setup are presented.
Original languageEnglish
JournalNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume256
Issue number2
Pages (from-to)381-392
ISSN0168-9002
Publication statusPublished - 1987

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