TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

Monte-Carlo calculations of keV electron and positron slowing down in solids

Tutkimustuotosvertaisarvioitu

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivut95-106
Sivumäärä12
JulkaisuApplied Physics A Solids and Surfaces
Vuosikerta32
Numero2
DOI - pysyväislinkit
TilaJulkaistu - 1 lokakuuta 1983
Julkaistu ulkoisestiKyllä
OKM-julkaisutyyppiEi OKM-tyyppiä

Tiivistelmä

A Monte-Carlo simulation technique based on the screened Rutherford differential cross section for the elastic scattering and Gryzinski's semiempirical expression for the inelastic core and valence electron excitation is used to describe electrons and positrons slowing down in solids. The theoretical results are compared with the experimental backscattering, absorption and transmission results for aluminum, silicon, copper, and gold thin film and semi-infinite targets and good agreement is observed. The simulated stopping profiles are fitted with a simple analytic expression. The profiles are Laplace-transformed to give a useful data base for analyzing phenomena associated with slow positron re-emission from solids.