LOW-ENERGY LIMIT TO CHANNELLING EFFECTS IN THE INELASTIC SCATTERING OF FAST ELECTRONS.

P. G. Self, P R Buseck

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

By studying channeling effects in the core-loss excitations of the mineral anhydrite (CaSO//4), it has been found that the impact parameter is two to three times smaller than previously reported. This means that channeling 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 channeling 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 languageEnglish (US)
JournalPhilosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
Volume48
Issue number4
StatePublished - Oct 1983

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Inelastic scattering
Energy dissipation
inelastic scattering
X ray spectrometers
Elastic scattering
Electrons
energy dissipation
Minerals
Electron beams
electrons
Oxygen
subtraction
X rays
energy
elastic scattering
x rays
minerals
electron beams
spectrometers
oxygen

ASJC Scopus subject areas

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

Cite this

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abstract = "By studying channeling effects in the core-loss excitations of the mineral anhydrite (CaSO//4), it has been found that the impact parameter is two to three times smaller than previously reported. This means that channeling 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 channeling 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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AU - Buseck, P R

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N2 - By studying channeling effects in the core-loss excitations of the mineral anhydrite (CaSO//4), it has been found that the impact parameter is two to three times smaller than previously reported. This means that channeling 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 channeling 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 channeling effects in the core-loss excitations of the mineral anhydrite (CaSO//4), it has been found that the impact parameter is two to three times smaller than previously reported. This means that channeling 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 channeling 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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