Wide Range Two-Crystal Vacuum X-ray Spectrometer for Chemical State Analysis

Author:

Gohshi Y.1,Kamada H.1,Kohra K.1,Utaka T.1,Arai T.1

Affiliation:

1. Department of Industrial Chemistry, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113 Japan (Y.G., H.K., K.K.), and Rigaku Industrial Corp., 14-8 Akaoji, Takatsuki, 569 Japan (T.U., T.A.)

Abstract

The design and construction of a new two-crystal x-ray spectrometer are described together with the observed Mg Kα, Al Kα, Si Kα, S Kα, and Cu Kα1 spectra. The spectrometer is designed for x-ray fluorescence analysis and has a wide scanning range (2° to 146° 2θ) under vacuum. Excellent reproducibility of 0.4 s in arc is attainable, which makes possible the observation of chemical shifts in x-ray spectra. Magnesium Kα was found to be influenced by the coordination number, proving that the spectrometer is useful for chemical state analysis.

Publisher

SAGE Publications

Subject

Spectroscopy,Instrumentation

Reference11 articles.

1. Measurement of the Mo.K Doublet Distances by Means of the Double X-Ray Spectrometer

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3. Über die natürliche Breite der Röntgenemissionslinien. II.

4. For review, Compton A. H. and Allison S. K., X-Rays in Theory and Experiment (D. van Nostrand, New York, 1935); Thomsen J. S., in X-ray Spectroscopy, Azaroff L. V., Ed. (McGraw-Hill, New York, 1974); Agarwal B. K., X-ray Spectroscopy (Springer-Verlag, New York, 1979), p. 346.

5. Two‐Crystal, Vacuum Monochromator

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