An X-ray microprobe facility using synchrotron radiation

An X-ray microprobe for trace elemental analysis at micrometer spatial resolutions, using synchrotron radiation (SR), is under development. The facility consists of two beamlines, one including a 1:1 focusing mirror and the other an 8:1 ellipsoidal mirror. At present, "white light" is used...

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Veröffentlicht in:	Biological trace element research 1990-07, Vol.26-27 (1), p.133-141
Hauptverfasser:	Gordon, B M, Jones, K W, Hanson, A L, Pounds, J G, Rivers, M L, Spanne, P, Sutton, S R
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Electron Probe Microanalysis - instrumentation Electron Probe Microanalysis - methods Particle Accelerators Trace Elements - analysis
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	An X-ray microprobe for trace elemental analysis at micrometer spatial resolutions, using synchrotron radiation (SR), is under development. The facility consists of two beamlines, one including a 1:1 focusing mirror and the other an 8:1 ellipsoidal mirror. At present, "white light" is used for excitation of the characteristic X-ray fluorescence lines. Sensitivities in thin biological samples are in the range of 2-20 fg in 100 microns2 areas in 5 min irradiation times. Scanning techniques, as well as microtomography and chemical speciation, are discussed. Application to a specific biomedical study is included.
ISSN:	0163-4984 1559-0720
DOI:	10.1007/BF02992666