The effective atomic number revisited in the light of modern photon-interaction cross-section databases

S.R. Manohara; S.M. Hanagodimath; K. S. Thind; Leif Gerward

doi:10.1016/j.apradiso.2009.09.047

The effective atomic number revisited in the light of modern photon-interaction cross-section databases

S.R. Manohara, S.M. Hanagodimath, K. S. Thind, Leif Gerward

Department of Physics

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The effective atomic number, Z(eff), has been calculated for fatty acids and cysteine. It is shown that Z(eff) is a useful parameter for low-Z materials at any energy above 1 key. Absorption edges of medium-Z elements may complicate the energy dependence of Z(eff) below 10 key. The notion of Z(eff) is perhaps most useful at energies where Compton scattering is dominating, and where Z(eff) is equal to the mean atomic number, <Z >, over a wide energy range around 1 MeV.

Original language	English
Journal	Applied Radiation and Isotopes
Volume	68
Issue number	4-5
Pages (from-to)	784-787
ISSN	0969-8043
DOIs	https://doi.org/10.1016/j.apradiso.2009.09.047
Publication status	Published - 2010

Keywords

Photon-interaction cross-sections
Effective atomic number
Biomolecules

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10.1016/j.apradiso.2009.09.047

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title = "The effective atomic number revisited in the light of modern photon-interaction cross-section databases",

abstract = "The effective atomic number, Z(eff), has been calculated for fatty acids and cysteine. It is shown that Z(eff) is a useful parameter for low-Z materials at any energy above 1 key. Absorption edges of medium-Z elements may complicate the energy dependence of Z(eff) below 10 key. The notion of Z(eff) is perhaps most useful at energies where Compton scattering is dominating, and where Z(eff) is equal to the mean atomic number, , over a wide energy range around 1 MeV.",

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AU - Thind, K. S.

AU - Gerward, Leif

PY - 2010

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AB - The effective atomic number, Z(eff), has been calculated for fatty acids and cysteine. It is shown that Z(eff) is a useful parameter for low-Z materials at any energy above 1 key. Absorption edges of medium-Z elements may complicate the energy dependence of Z(eff) below 10 key. The notion of Z(eff) is perhaps most useful at energies where Compton scattering is dominating, and where Z(eff) is equal to the mean atomic number, , over a wide energy range around 1 MeV.

KW - Photon-interaction cross-sections

KW - Effective atomic number

KW - Biomolecules

U2 - 10.1016/j.apradiso.2009.09.047

DO - 10.1016/j.apradiso.2009.09.047

M3 - Journal article

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SP - 784

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JO - Applied Radiation and Isotopes

JF - Applied Radiation and Isotopes

IS - 4-5

ER -

The effective atomic number revisited in the light of modern photon-interaction cross-section databases

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