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Transmission of Gamma Radiation by Soils and Soil Densitometry
Author(s) -
Bavel C. H. M.,
Underwood N.,
Ragar S. R.
Publication year - 1957
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1957.03615995002100060005x
Subject(s) - soil water , radiation , densitometry , environmental science , scintillation , transmission (telecommunications) , soil science , physics , optics , computer science , telecommunications , detector
The theoretical basis for gamma densitometry of soil by transmission is reviewed. It is stressed that the familiar exponential‐inverse square law applies only to primary radiation. Data obtained with five different soils show such to be the case. Inclusion of secondary radiation in the measurement results in unwanted complications. The separation of the two types of radiation is achieved by scintillation counting and electronic discrimination.