Published June 1983 | Version v1
Report Open

A new approach to obtain an analytical expression for K-shell ionization cross section in PWBA

Creators

  • 1. Pontificia Univ. Catolica do Rio de Janeiro (Brazil). Dept. de Fisica
  • 2. Heidelberg Univ. (Germany, F.R.). Physikalisches Inst.

Description

An approximate analytical expression for the K-shell ionization cross section is derived starting from the Plane Wave Born Approximation (PWBA). The calculations are carried out under an appropriate choice of a normalizing function. The effects of Coulomb deflection of the projectile and the increase of the binding energy of the K-shell electron were included. The resulting expression is very simple and reproduces available experimental data for a wide range of projectile velocities and target elements. (Author)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (Portuguese)

Partindo da Aproximacao de Born e considerando os efeitos do aumento da energia de ligacao do eletron K devido a presenca do projetil alem da retardacao e deflexao Coulombiana do projetil pelo nucleo alvo, chega-se a uma expressao aproximada para a secao de choque de ionizacao da camada K suficientemente simples e acurada para ser empregada em metodos de analise multielementar. (Autor)

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Additional details

Publishing Information

Imprint Pagination
23 p.
Report number
PUC-TN--16/83

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
16028065
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
BORN APPROXIMATION; COMPARATIVE EVALUATIONS; COMPILED DATA; COULOMB FIELD; CROSS SECTIONS; EXCITATION FUNCTIONS; INNER-SHELL IONIZATION; K SHELL; THEORETICAL DATA
Descriptors DEC
DATA; ELECTRIC FIELDS; ELECTRONIC STRUCTURE; INFORMATION; IONIZATION; NUMERICAL DATA