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Micro-Tomography Using Synchrotron Radiation

Published online by Cambridge University Press:  25 February 2011

Quintin C. Johnson
Affiliation:
Lawrence Livermore National Laboratory, Livermore, CA 94550
John H. Kinney
Affiliation:
Lawrence Livermore National Laboratory, Livermore, CA 94550
Ulrich Bonse
Affiliation:
Dortmund University, Dept. of Physics, Dortmund, West Germany
Monte C. Nichols
Affiliation:
Sandia National Laboratory, Livermore, CA 94550
Rudolf Nusshardt
Affiliation:
Dortmund University, Dept. of Physics, Dortmund, West Germany
James M. Brase
Affiliation:
Lawrence Livermore National Laboratory, Livermore, CA 94550
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Abstract

This paper discusses the results of recent experiments at Stanford Synchrotron Radiation Laboratory (SSRL) and Hamburger Synchrotronstrahlungslabor (HASYLAB) which were designed to explore the feasibility of using synchrotron radiation in high-resolution, computerized, critical-absorption tomography. The results demonstrate that it is possible, using absorption-edge differencing, to identify adjacent elements in the periodic table with high sensitivity. Furthermore, by using the fine structure in the absorption spectra, it is possible to distinguish between regions of different chemical states. Methods of using synchrotron radiation for high-resolution, three-dimensional chemical-state mapping in small samples are discussed.

Type
Articles
Copyright
Copyright © Materials Research Society 1986

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