Invariant-embedding and cognate kinetic descriptions of particle reflection/emission from surfaces
Artikel i vetenskaplig tidskrift, 2007

The invariant-embedding (IE) approach, originally developed by Ambartsumyan and Chandrasekhar, is revisited in this paper. The unified derivation and description presented are geared to particle backscattering/emission from surfaces and contain earlier treatments as special cases of the arising general theory that embraces a large variety of bombarding particles and collision-cascade types. A particular new development concerns the relationship between the half-space and infinite-medium solutions in terms of the resolvent of the underlying transport operator. The infinite-medium reformulation of the IE approach gives rise to new equations that are more transparent, highlight fundamental relationships underlying various descriptions of reflection/emission kinetics, and are very flexible for further analytical transformations or numerical studies of the solutions. The general discussion is illustrated by explicit distributions characterizing elastic electron backscattering from a solid; an efficient and powerful calculation technique is discussed and exemplified by various resulting dependencies. (c) 2007 Published by Elsevier B.V.

ION-BOMBARDMENT

particle backscattering

half-spaces

infinite medium

SPATIAL-DISTRIBUTION

electron reflection

invariant embedding

MODEL

ENERGY

EQUATION

BACKSCATTERING

Författare

L. G. Glazov

Institute of High Current Electronics SB RAS

Imre Pazsit

Chalmers, Teknisk fysik, Nukleär teknik

Publicerad i

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

0168-583X (ISSN)

Vol. 256 Nummer/häfte 2 s. 638-658

Kategorisering

Ämneskategorier (SSIF 2011)

Annan teknik

Identifikatorer

DOI

10.1016/j.nimb.2006.12.192

Mer information

Skapat

2017-10-06