Elastic electron scattering cross sections at high momentum transfer

M. Vos; R. P. McEachran; E. Weigold; R. A. Bonham

doi:10.1016/j.nimb.2013.01.043

Elastic electron scattering cross sections at high momentum transfer

M. Vos^*, R. P. McEachran, E. Weigold, R. A. Bonham

^*Corresponding author for this work

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

8 Citations (Scopus)

Abstract

The elastic scattering cross section of keV electrons over large angles (>90°) is discussed. A comparison is made of the Rutherford cross section, the cross section obtained in the first Born approximation and that obtained by a partial wave calculation. The last approach differs significantly from the first two. For compounds, the recoil energy makes it possible to distinguish experimentally from which atom the electron has scattered. We compare the elastic peak ratio of H and O in water at several keV and for Hf and O in HfO₂ at 20-40 keV with the calculated ratios. Reasonable (but not perfect) agreement is obtained between the experiment and theory for the partial wave calculations.

Original language	English
Pages (from-to)	62-67
Number of pages	6
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	300
DOIs	https://doi.org/10.1016/j.nimb.2013.01.043
Publication status	Published - 2013

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10.1016/j.nimb.2013.01.043

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title = "Elastic electron scattering cross sections at high momentum transfer",

abstract = "The elastic scattering cross section of keV electrons over large angles (>90°) is discussed. A comparison is made of the Rutherford cross section, the cross section obtained in the first Born approximation and that obtained by a partial wave calculation. The last approach differs significantly from the first two. For compounds, the recoil energy makes it possible to distinguish experimentally from which atom the electron has scattered. We compare the elastic peak ratio of H and O in water at several keV and for Hf and O in HfO2 at 20-40 keV with the calculated ratios. Reasonable (but not perfect) agreement is obtained between the experiment and theory for the partial wave calculations.",

keywords = "Elastic electron scattering, First Born approximation, Partial wave theory, Recoil energy",

author = "M. Vos and McEachran, {R. P.} and E. Weigold and Bonham, {R. A.}",

year = "2013",

doi = "10.1016/j.nimb.2013.01.043",

language = "English",

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T1 - Elastic electron scattering cross sections at high momentum transfer

AU - Vos, M.

AU - McEachran, R. P.

AU - Weigold, E.

AU - Bonham, R. A.

PY - 2013

Y1 - 2013

N2 - The elastic scattering cross section of keV electrons over large angles (>90°) is discussed. A comparison is made of the Rutherford cross section, the cross section obtained in the first Born approximation and that obtained by a partial wave calculation. The last approach differs significantly from the first two. For compounds, the recoil energy makes it possible to distinguish experimentally from which atom the electron has scattered. We compare the elastic peak ratio of H and O in water at several keV and for Hf and O in HfO2 at 20-40 keV with the calculated ratios. Reasonable (but not perfect) agreement is obtained between the experiment and theory for the partial wave calculations.

AB - The elastic scattering cross section of keV electrons over large angles (>90°) is discussed. A comparison is made of the Rutherford cross section, the cross section obtained in the first Born approximation and that obtained by a partial wave calculation. The last approach differs significantly from the first two. For compounds, the recoil energy makes it possible to distinguish experimentally from which atom the electron has scattered. We compare the elastic peak ratio of H and O in water at several keV and for Hf and O in HfO2 at 20-40 keV with the calculated ratios. Reasonable (but not perfect) agreement is obtained between the experiment and theory for the partial wave calculations.

KW - Elastic electron scattering

KW - First Born approximation

KW - Partial wave theory

KW - Recoil energy

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U2 - 10.1016/j.nimb.2013.01.043

DO - 10.1016/j.nimb.2013.01.043

M3 - Article

SN - 0168-583X

VL - 300

SP - 62

EP - 67

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

ER -

Elastic electron scattering cross sections at high momentum transfer

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