Radioactive Isotopes of Mercury

Gerhart Friedlander; Chien-Shiung Wu

doi:10.1103/PhysRev.63.227

Access by Xinjiang University

Radioactive Isotopes of Mercury

Gerhart Friedlander^* and Chien-Shiung Wu^†

Radiation Laboratory, Department of Physics, and Department of Chemistry, University of California, Berkeley, California

^*Now at the Department of Chemistry, University of Idaho, Moscow, Idaho.
^†Now at the Department of Physics, Smith College, Northampton, Massachusetts.

PDF

Phys. Rev. 63, 227 – Published 1 April, 1943

DOI: https://doi.org/10.1103/PhysRev.63.227

Abstract

The radioactive mercury isotopes produced by the bombardment of mercury with neutrons and by the bombardment of gold with deuterons have been studies. Two activities with half-lives of 23 hours and 64 hours, respectively, both decaying by $K$ -electron capture, have been assigned to ${Hg}^{197}$ , on the basis of critical absorption measurements made on the x-rays emitted. The same method was used to show that the 43-minute activity produced by fast neutrons in mercury belongs to an excited state of a mercury isotope and decays by an isomeric transition to the ground state. A 51.5-day beta-emitter was studied; it is probably to be assigned to ${Hg}^{203}$ .

References (15)

C. S. Wu and G. Friedlander, Phys. Rev. 60, 747 (1941)
E. B. Anderson, Nature 137, 457 (1936)
M. L. Pool, J. M. Cork, and R. L. Thornton, Phys. Rev. 52, 239 (1937)
F. A. Heyn, Nature 139, 842 (1937)
F. M. McMillan, M. Kamen, and S. Ruben, Phys. Rev. 52, 375 (1937)
R. S. Krishnan and E. A. Nahum, Proc. Camb. Phil. Soc. 36, 490 (1940)
R. S. Krishnan, Proc. Camb. Phil. Soc. 37, 186 (1941)
R. Sherr, K. T. Bainbridge, and H. H. Anderson, Phys. Rev. 60, 473 (1941)
A. A. Noyes and W. C. Bray, A System of Qualitative Analysis for the Rare Elements (Macmillan Company, New York, 1927), pp. 113-116
A. C. Helmholz, Phys. Rev. 61, 204 (1942)
G. E. Valley, Phys. Rev. 60, 167 (1941)
Omitted endnote
A. H. Compton and S. K. Allison, X-Rays in Theory and Experiment (D. Van Nostrand Company, New York, 1935)
E. Rutherford, J. Chadwick, and C. D. Ellis, Radiations from Radioactive Substances (Cambridge University Press, 1930), p. 422
W. Gentner, Physik. Zeits. 38, 836 (1937)

[c1] C. S. Wu and G. Friedlander, Phys. Rev. 60, 747 (1941)

[c2] E. B. Anderson, Nature 137, 457 (1936)

[c3] M. L. Pool, J. M. Cork, and R. L. Thornton, Phys. Rev. 52, 239 (1937)

[c4] F. A. Heyn, Nature 139, 842 (1937)

[c5] F. M. McMillan, M. Kamen, and S. Ruben, Phys. Rev. 52, 375 (1937)

[c6] R. S. Krishnan and E. A. Nahum, Proc. Camb. Phil. Soc. 36, 490 (1940)

[c7] R. S. Krishnan, Proc. Camb. Phil. Soc. 37, 186 (1941)

[c8] R. Sherr, K. T. Bainbridge, and H. H. Anderson, Phys. Rev. 60, 473 (1941)

[c9] A. A. Noyes and W. C. Bray, A System of Qualitative Analysis for the Rare Elements (Macmillan Company, New York, 1927), pp. 113-116

[c10] A. C. Helmholz, Phys. Rev. 61, 204 (1942)

[c11] G. E. Valley, Phys. Rev. 60, 167 (1941)

[c12] Omitted endnote

[c13] A. H. Compton and S. K. Allison, X-Rays in Theory and Experiment (D. Van Nostrand Company, New York, 1935)

[c14] E. Rutherford, J. Chadwick, and C. D. Ellis, Radiations from Radioactive Substances (Cambridge University Press, 1930), p. 422

[c15] W. Gentner, Physik. Zeits. 38, 836 (1937)

Physical Review Journals Archive

Export citation

Export citation

Radioactive Isotopes of Mercury

Abstract

References (15)

Outline

Information

Filter

Filter

Article Lookup

Enter a citation