Transport of Terrestrial gamma-Radiation in Plane Semi-Infinite Geometry

Peter Kirkegaard; Leif Løvborg

doi:10.1016/0021-9991(80)90172-2

Transport of Terrestrial gamma-Radiation in Plane Semi-Infinite Geometry

Peter Kirkegaard, Leif Løvborg

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

Abstract

The plane one-dimensional photon transport equation is solved for the scattered γ-radiation flux in the case of two adjacent media. One medium represents a natural ground with uniformly distributed potassium, uranium, and thorium γ-ray emitters. The other medium is air with no radioactive contaminants. The solution method is the double-P1 approximation with equidistant lethargy mesh. By this approach, which is discussed in some detail, it is possible to calculate the complete terrestrial γ-radiation field in an economical way. Calculated ground-level γ-ray exposure rates for igneous rocks with effective atomic numbers in the range 13.1 to 15.5 are presented.

Original language	English
Journal	Journal of Computational Physics
Volume	36
Issue number	1
Pages (from-to)	20-34
ISSN	0021-9991
DOIs	https://doi.org/10.1016/0021-9991(80)90172-2
Publication status	Published - 1980

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title = "Transport of Terrestrial gamma-Radiation in Plane Semi-Infinite Geometry",

abstract = "The plane one-dimensional photon transport equation is solved for the scattered γ-radiation flux in the case of two adjacent media. One medium represents a natural ground with uniformly distributed potassium, uranium, and thorium γ-ray emitters. The other medium is air with no radioactive contaminants. The solution method is the double-P1 approximation with equidistant lethargy mesh. By this approach, which is discussed in some detail, it is possible to calculate the complete terrestrial γ-radiation field in an economical way. Calculated ground-level γ-ray exposure rates for igneous rocks with effective atomic numbers in the range 13.1 to 15.5 are presented.",

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AB - The plane one-dimensional photon transport equation is solved for the scattered γ-radiation flux in the case of two adjacent media. One medium represents a natural ground with uniformly distributed potassium, uranium, and thorium γ-ray emitters. The other medium is air with no radioactive contaminants. The solution method is the double-P1 approximation with equidistant lethargy mesh. By this approach, which is discussed in some detail, it is possible to calculate the complete terrestrial γ-radiation field in an economical way. Calculated ground-level γ-ray exposure rates for igneous rocks with effective atomic numbers in the range 13.1 to 15.5 are presented.

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DO - 10.1016/0021-9991(80)90172-2

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Transport of Terrestrial gamma-Radiation in Plane Semi-Infinite Geometry

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