Multiple scattering simulation of electron channelling contrast images of dislocations at interfaces

Quantum-mechanical multiple scattering theory of electron backscattering from crystalline materials is applied to simulate channelling images of dislocations situated near the surface of a crystal. A computational algorithm is developed which uses perturbation expansion of the solution of an inhomog...

Cur síos iomlán

Sonraí bibleagrafaíochta
Príomhchruthaitheoirí: Dudarev, S, Czernuszka, J, Peng, L, Wilkinson, A, Whelan, M
Formáid: Conference item
Foilsithe / Cruthaithe: 1995
_version_ 1826292518751305728
author Dudarev, S
Czernuszka, J
Peng, L
Wilkinson, A
Whelan, M
author_facet Dudarev, S
Czernuszka, J
Peng, L
Wilkinson, A
Whelan, M
author_sort Dudarev, S
collection OXFORD
description Quantum-mechanical multiple scattering theory of electron backscattering from crystalline materials is applied to simulate channelling images of dislocations situated near the surface of a crystal. A computational algorithm is developed which uses perturbation expansion of the solution of an inhomogeneous transport equation and which makes it possible to generate two-dimensional images of dislocations for various orientations of the Burgers vector. We compare the images simulated numerically with the results of experimental observations performed at inclined incidence using a conventional SEM and recently developed detector of backscattered electrons. The origin of the oscillations of the image intensity is discussed.
first_indexed 2024-03-07T03:15:56Z
format Conference item
id oxford-uuid:b5c52c82-e3bb-4284-aab4-4e6e3370a0a9
institution University of Oxford
last_indexed 2024-03-07T03:15:56Z
publishDate 1995
record_format dspace
spelling oxford-uuid:b5c52c82-e3bb-4284-aab4-4e6e3370a0a92022-03-27T04:36:06ZMultiple scattering simulation of electron channelling contrast images of dislocations at interfacesConference itemhttp://purl.org/coar/resource_type/c_5794uuid:b5c52c82-e3bb-4284-aab4-4e6e3370a0a9Symplectic Elements at Oxford1995Dudarev, SCzernuszka, JPeng, LWilkinson, AWhelan, MQuantum-mechanical multiple scattering theory of electron backscattering from crystalline materials is applied to simulate channelling images of dislocations situated near the surface of a crystal. A computational algorithm is developed which uses perturbation expansion of the solution of an inhomogeneous transport equation and which makes it possible to generate two-dimensional images of dislocations for various orientations of the Burgers vector. We compare the images simulated numerically with the results of experimental observations performed at inclined incidence using a conventional SEM and recently developed detector of backscattered electrons. The origin of the oscillations of the image intensity is discussed.
spellingShingle Dudarev, S
Czernuszka, J
Peng, L
Wilkinson, A
Whelan, M
Multiple scattering simulation of electron channelling contrast images of dislocations at interfaces
title Multiple scattering simulation of electron channelling contrast images of dislocations at interfaces
title_full Multiple scattering simulation of electron channelling contrast images of dislocations at interfaces
title_fullStr Multiple scattering simulation of electron channelling contrast images of dislocations at interfaces
title_full_unstemmed Multiple scattering simulation of electron channelling contrast images of dislocations at interfaces
title_short Multiple scattering simulation of electron channelling contrast images of dislocations at interfaces
title_sort multiple scattering simulation of electron channelling contrast images of dislocations at interfaces
work_keys_str_mv AT dudarevs multiplescatteringsimulationofelectronchannellingcontrastimagesofdislocationsatinterfaces
AT czernuszkaj multiplescatteringsimulationofelectronchannellingcontrastimagesofdislocationsatinterfaces
AT pengl multiplescatteringsimulationofelectronchannellingcontrastimagesofdislocationsatinterfaces
AT wilkinsona multiplescatteringsimulationofelectronchannellingcontrastimagesofdislocationsatinterfaces
AT whelanm multiplescatteringsimulationofelectronchannellingcontrastimagesofdislocationsatinterfaces