Premium
D2O‐Na24 Method for Tracing Soil Moisture Movement in the Field
Author(s) -
Haskell C. C.,
Hawkins R. H.
Publication year - 1964
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/sssaj1964.03615995002800060015x
Subject(s) - tracer , loam , neutron , deuterium , tracing , moisture , neutron source , water content , neutron probe , detector , environmental science , radiochemistry , chemistry , nuclear physics , soil water , neutron temperature , soil science , physics , geology , neutron cross section , optics , geotechnical engineering , computer science , operating system , organic chemistry
A unique method is described for measuring unsaturated flow of water in the field with D 2 O tracer, a Na 24 gamma source, and a slow‐neutron detector. The interaction of gamma radiation of energy greater than 2.23 Mev. and deuterium produces photoneutrons. The Na 24 gamma source and the slow‐neutron detector are contained in a modified neutron‐type soil moisture probe. The method successfully measured vertical movement of deuterium tracer in a Gilead sandy loam with the aid of access tubes.