Published 1971 | Version v1
Journal article

208Tl and 24Na gamma sources for identifying soil water tagged with deuterium

  • 1. Du Pont de Nemours (E.I.) and Co., Aiken, S.C. (USA)

Description

Abstract In situ tracing of soil water movement with the D 2 O‐ 24 Na method has been limited by the need to reactivate the 24 Na gamma source frequently (half‐life of 15 hours) in a nuclear reactor. Our laboratory study showed 208 Tl produced the same neutron count rates from vials of D 2 O in dry and moist soil as did 24 Na. The 1.9‐year effective half‐life of 208 Tl in equilibrium with its parent nuclide 228 Th is a significant advantage of 208 Tl over 24 Na. Recent commercial availability of 208 Tl sources now makes in situ D 2 O tracing of soil water feasible for investigators not having access to a nuclear reactor.

Additional details

Publishing Information

Journal Title
Soil Science Society of America Journal
Journal Volume
35
Journal Issue
2
Series
Soil Sci. Soc. Amer., Proc.
Journal Page Range
199-201
ISSN
0361-5995

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
3015622
Subject category
S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS;
Resource subtype / Literary indicator
No Abstract
Descriptors DEI
DEUTERIUM; GAMMA SOURCES; GROUND WATER; MOTION; NEUTRONS; SODIUM 24; SOILS; THALLIUM 208; TRACER TECHNIQUES

Optional Information

Notes
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