Abstract
A FEW years ago, Wasserman, Twardock and Comar1 investigated the metabolic dissociation of caesium-137–barium-137m in animals. A value for the half-life of barium-137m could be estimated from their data; it appeared to be about 2.52 min, compared with the 2.60 min previously measured by Mitchell and Peacock2.
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References
Wasserman, R. H., Twardock, A. R., and Comar, C. L., Science, 129, 568 (1959).
Mitchell, A. C. G., and Peacock, C. L., Phys. Rev., 75, 197 (1949).
Cook, G. B., and Duncan, J. F., Modern Radiochemical Practice, 65 (Clarendon Press, Oxford, 1952).
Nuklidkarte, zweite Auflage (Bundesminister für Atomenergie, Bad Gotesberg, 1961).
Sunderman, D. N., and Townley, C. W., Atomic Energy Commission NAS-NS, 3047, 25 (1961).
Wyatt, E. I., and Rickard, R. R., Atomic Energy Commission NAS-NS, 3029, 28 (1961).
Dzhelepov, B. S., and Peker, L. K., Decay Schemes of Radioactive Nuclei (Pergamon Press, Oxford, 1961).
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MIDDELBOE, V. Half-lives of Barium-137m, Silver-109m and Rhodium-106 measured with Calculable Overall Accuracy. Nature 211, 283–284 (1966). https://doi.org/10.1038/211283a0
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DOI: https://doi.org/10.1038/211283a0
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