Studies of the Delayed Neutrons. II. Chemical Isolation of the 56-Second and the 23-Second Activities

Arthur H. Snell; J. S. Levinger; E. P. Meiners, Jr; M. B. Sampson; R. G. Wilkinson

doi:10.1103/PhysRev.72.545

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Studies of the Delayed Neutrons. II. Chemical Isolation of the 56-Second and the 23-Second Activities

Arthur H. Snell^*, J. S. Levinger^†, E. P. Meiners, Jr.^‡, M. B. Sampson^§, and R. G. Wilkinson^§

Metallurgical Laboratory, University of Chicago, Chicago, Illinois

^*Now at Clinton Laboratories, Oak Ridge, Tennessee.
^†Now at Physics Department, Cornell University, Ithaca, New York.
^‡Now at Physics Department, Washington University, St. Louis, Missouri.
^§Now at Physics Department, Indiana University, Bloomington, Indiana.

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Phys. Rev. 72, 545 – Published 1 October, 1947

DOI: https://doi.org/10.1103/PhysRev.72.545

Abstract

The 23-second delayed neutron activity is found to follow the chemistry of iodine, and the 56-second delayed neutron activity is found to follow the chemistry of bromine. Comparison with known beta-emitters of like half-lives suggests that the neutron-emitting nuclei may be ${Xe}^{137}$ and ${Kr}^{87}$ .

References (8)

N. Bohr and J. A. Wheeler, Phys. Rev. 56, 426 (1939)
O. Hahn and F. Strassmann, Naturwiss. 28, 817 (1940)
H. J. Born and W. Seelmann-Eggebert, Naturwiss. 31, 59 (1943)
H. J. Born and W. Seelmann-Eggebert, Naturwiss. 31, 86 (1943) V. Riezler, 31, 326 (1943)
Rev. Mod. Phys. 18, 513 (1946) J. Am. Chem. Soc. 68, 2437 (1946)
Snell, Nedzel, Ibser, Levinger, Wilkinson, and Lampson, Phys. Rev. 72, 541 (1947)
Omitted endnote
W. Jentschke, Zeits, f. Physik 120, 165 (1942)

[c1] N. Bohr and J. A. Wheeler, Phys. Rev. 56, 426 (1939)

[c2] O. Hahn and F. Strassmann, Naturwiss. 28, 817 (1940)

[c3] H. J. Born and W. Seelmann-Eggebert, Naturwiss. 31, 59 (1943)

[c4] H. J. Born and W. Seelmann-Eggebert, Naturwiss. 31, 86 (1943) V. Riezler, 31, 326 (1943)

[c5] Rev. Mod. Phys. 18, 513 (1946) J. Am. Chem. Soc. 68, 2437 (1946)

[c6] Snell, Nedzel, Ibser, Levinger, Wilkinson, and Lampson, Phys. Rev. 72, 541 (1947)

[c7] Omitted endnote

[c8] W. Jentschke, Zeits, f. Physik 120, 165 (1942)

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Studies of the Delayed Neutrons. II. Chemical Isolation of the 56-Second and the 23-Second Activities

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See Also

Studies of the Delayed Neutrons. I. The Decay Curve and the Intensity of the Delayed Neutrons

References (8)

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