Iodine-129: its occurrence in nature and its utility as a tracer

Journal Article · Fri Sep 14 04:00:00 EDT 1962 · Science (Washington, D.C.); (United States)

DOI:https://doi.org/10.1126/science.137.3533.851· OSTI ID:6356661

Edwards, R R

Natural production rates of the 16 million-year iodine-129 from spontaneous fission and from cosmic-ray reactions are estimated to contribute a steady-state concentration of more than 10/sup -14/ gram of I/sup 129/ per gram of I/sup 129/ to the hydrosphere, the atmosphere, and the biosphere. These concentrations are expected to be detectable by neutron-activation analysis in natural materials that concentrate iodine. Substantial additional contributions have been made by fission-produced I/sup 129/ in fallout, serving as an intrinsic tracer for natural iodine kinetics. Iodine-129 activation analysis has advantages as a tracer technique.

• Research Organization: Nuclear Science and Engineering Corp., Pittsburgh, PA
• OSTI ID: 6356661
• Journal Information: Science (Washington, D.C.); (United States), Journal Name: Science (Washington, D.C.); (United States) Vol. 137; ISSN SCIEA
• Country of Publication: United States
• Language: English

Related Subjects

500101* -- Environment
Atmospheric-- Basic Studies-- Radiometric Techniques-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACTIVATION ANALYSIS
BARYON REACTIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHEMICAL ANALYSIS
ECOLOGICAL CONCENTRATION
FALLOUT
HADRON REACTIONS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IODINE 129
IODINE ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
NATURAL OCCURRENCE
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-EVEN NUCLEI
RADIOISOTOPES
STEADY-STATE CONDITIONS
TRACER TECHNIQUES
USES
YEARS LIVING RADIOISOTOPES