Low-energy limit to channelling effects in the inelastic scattering of fast electrons

P. G. Self; P R Buseck

doi:10.1080/01418618308234920

Low-energy limit to channelling effects in the inelastic scattering of fast electrons

P. G. Self, P R Buseck

Earth and Space Exploration, School of (SESE)

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

By studying channelling effects in the core-loss excitations of the mineral anhydrite (CaS0₄), it has been found that the impact parameter is two to three times smaller than previously reported. This means that channelling effects in elastic scattering of fast (beam) electrons should be observable down to energy losses as low as 200 eV. However, background subtraction for energy-loss spectra is a serious problem in the observation of channelling effects from electrons experiencing such low losses in energy. The low value of the impact parameter means that it is possible to use thin-window energy dispersive X-ray spectrometers to observe the variation in the intensity of the oxygen K X-ray peak; and to apply the results to quantitative atomic site location.

Original language	English (US)
Pages (from-to)	L21-L26
Journal	Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
Volume	48
Issue number	4
DOIs	https://doi.org/10.1080/01418618308234920
State	Published - Apr 1983

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Materials Science
Condensed Matter Physics
Physics and Astronomy (miscellaneous)
Metals and Alloys

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10.1080/01418618308234920

Cite this

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title = "Low-energy limit to channelling effects in the inelastic scattering of fast electrons",

abstract = "By studying channelling effects in the core-loss excitations of the mineral anhydrite (CaS04), it has been found that the impact parameter is two to three times smaller than previously reported. This means that channelling effects in elastic scattering of fast (beam) electrons should be observable down to energy losses as low as 200 eV. However, background subtraction for energy-loss spectra is a serious problem in the observation of channelling effects from electrons experiencing such low losses in energy. The low value of the impact parameter means that it is possible to use thin-window energy dispersive X-ray spectrometers to observe the variation in the intensity of the oxygen K X-ray peak; and to apply the results to quantitative atomic site location.",

author = "Self, {P. G.} and Buseck, {P R}",

note = "Funding Information: We are grateful to Dr. A. J. Bourdillon for sending the results of his impact-parameter calculations and a preprint of his paper with Dr. B. G. Williams. This study was supported by National Science Foundation grant EAR79-26375 and equipment grant CHE79-16098.",

year = "1983",

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doi = "10.1080/01418618308234920",

language = "English (US)",

volume = "48",

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journal = "Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties",

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T1 - Low-energy limit to channelling effects in the inelastic scattering of fast electrons

AU - Self, P. G.

AU - Buseck, P R

N1 - Funding Information: We are grateful to Dr. A. J. Bourdillon for sending the results of his impact-parameter calculations and a preprint of his paper with Dr. B. G. Williams. This study was supported by National Science Foundation grant EAR79-26375 and equipment grant CHE79-16098.

PY - 1983/4

Y1 - 1983/4

N2 - By studying channelling effects in the core-loss excitations of the mineral anhydrite (CaS04), it has been found that the impact parameter is two to three times smaller than previously reported. This means that channelling effects in elastic scattering of fast (beam) electrons should be observable down to energy losses as low as 200 eV. However, background subtraction for energy-loss spectra is a serious problem in the observation of channelling effects from electrons experiencing such low losses in energy. The low value of the impact parameter means that it is possible to use thin-window energy dispersive X-ray spectrometers to observe the variation in the intensity of the oxygen K X-ray peak; and to apply the results to quantitative atomic site location.

AB - By studying channelling effects in the core-loss excitations of the mineral anhydrite (CaS04), it has been found that the impact parameter is two to three times smaller than previously reported. This means that channelling effects in elastic scattering of fast (beam) electrons should be observable down to energy losses as low as 200 eV. However, background subtraction for energy-loss spectra is a serious problem in the observation of channelling effects from electrons experiencing such low losses in energy. The low value of the impact parameter means that it is possible to use thin-window energy dispersive X-ray spectrometers to observe the variation in the intensity of the oxygen K X-ray peak; and to apply the results to quantitative atomic site location.

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JF - Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties

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ER -

Low-energy limit to channelling effects in the inelastic scattering of fast electrons

Abstract

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