X-ray fluorescence analysis using synchrotron radiation at the photon factory.

Abstract:

:X-ray fluorescence experiments at the Photon Factory in Japan are described. An energy-dispersive X-ray fluorescence system was combined with various excitation modes, i.e., a continuum and a monochromatic excitation, which consist of a crystal monochromator or a wide band pass monochromator. These excitation modes provide a wide range of band width and photon flux of excitation beams. Minimum detection limits obtained for a thin sample were less than 0.1 ppm and 0.1 pg when there was no line interference. Advantages of using monochromatic excitation are discussed, with emphasis on the possibility of chemical state analysis. Grazing incidence X-ray fluorescence is a technique very appropriate to synchrotron radiation characteristics. Near-surface analysis and trace analysis of solution samples placed on a total reflection support were made. Future plans are discussed, including microbeam analysis, tomography, X-ray excited optical fluorescence, and applications of insertion devices (undulator and wiggler).

journal_name

Biol Trace Elem Res

authors

Gohshi Y,Iida A,Matsushita T

doi

10.1007/BF02796677

subject

Has Abstract

pub_date

1987-04-01 00:00:00

pages

161-6

issue

1

eissn

0163-4984

issn

1559-0720

journal_volume

12

pub_type

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