Hyperfine Structure and Nuclear Spins of Tungsten and Tellurium

G. R. Fowles

doi:10.1103/PhysRev.78.744

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Hyperfine Structure and Nuclear Spins of Tungsten and Tellurium

G. R. Fowles^*

Department of Physics, University of California, Berkeley, California

^*Now at the University of Utah, Salt Lake City, Utah.

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Phys. Rev. 78, 744 – Published 15 June, 1950

DOI: https://doi.org/10.1103/PhysRev.78.744

Abstract

By the use of enriched isotopes, hyperfine structure in the optical spectra of ${Te}^{123}$ , ${Te}^{125}$ , and $W^{183}$ has been observed. Milligram amounts of the isotopes were used in a modified Schüler hollow-cathode discharge tube. In the visible region, 4000 to 6000A, about a dozen lines of singly ionized tellurium showed hyperfine structure, all of them giving just two components for the odd isotope. ${Te}^{123}$ and ${Te}^{125}$ gave identical structures except for a scale factor, the total splitting of the lines of ${Te}^{123}$ being about 88 percent of that of ${Te}^{125}$ . In the spectrum of neutral tungsten, all of the lines which show the isotope shift for natural tungsten gave just two components with highly enriched $W^{183}$ . The number of hyperfine-structure components, namely two, gives for ${Te}^{123}$ , ${Te}^{125}$ , and $W^{183}$ a nuclear spin of ½. This was also verified by intensity measurements.

References (19)

G. R. Fowles, Phys. Rev. 76, 571 (1949)
J. E. Mack and O. H. Arroe, Phys. Rev. 76, 1002 (1949)
E. Rasmussen, Physica 12, 656 (1946)
W. Walcher, Zeits. f. Physik 122, 62 (1944)
R. A. Sawyer, Experimental Spectroscopy (Prentice Hall, Inc., New York, 1944), p. 259
R. D. Hill, Phys. Rev. 76, 333 (1949)
Friedlander, Goldhaber, and Scharff-Goldhaber, Phys. Rev. 74, 981 (1948)
E. Segrè and A. C. Helmholtz, Rev. Mod. Phys. 21, 271 (1949)
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M. G. Mayer, Phys. Rev. 75, 1969 (1949)
H. A. Bethe and R. F. Bacher, Rev. Mod. Phys. 8, 83 (1936)
Omitted endnote
Omitted endnote
N. S. Grace and H. E. White, Phys. Rev. 43, 1039 (1933)
N. S. Grace and K. R. More, Phys. Rev. 45, 166 (1935)
H. Kopferman and D. Meyer, Zeits. f. Physik 124, 685 (1948)
Omitted endnote
O. Laporte and J. E. Mack, Phys. Rev. 63, 246 (1943)

[c1] G. R. Fowles, Phys. Rev. 76, 571 (1949)

[c2] J. E. Mack and O. H. Arroe, Phys. Rev. 76, 1002 (1949)

[c3] E. Rasmussen, Physica 12, 656 (1946)

[c4] W. Walcher, Zeits. f. Physik 122, 62 (1944)

[c5] R. A. Sawyer, Experimental Spectroscopy (Prentice Hall, Inc., New York, 1944), p. 259

[c6] R. D. Hill, Phys. Rev. 76, 333 (1949)

[c7] Friedlander, Goldhaber, and Scharff-Goldhaber, Phys. Rev. 74, 981 (1948)

[c8] E. Segrè and A. C. Helmholtz, Rev. Mod. Phys. 21, 271 (1949)

[c9] E. Feenberg and K. C. Hammack, Phys. Rev. 75, 1877 (1949)

[c10] L. Nordheim, Phys. Rev. 75, 1894 (1949)

[c11] M. G. Mayer, Phys. Rev. 75, 1969 (1949)

[c12] H. A. Bethe and R. F. Bacher, Rev. Mod. Phys. 8, 83 (1936)

[c13] Omitted endnote

[c14] Omitted endnote

[c15] N. S. Grace and H. E. White, Phys. Rev. 43, 1039 (1933)

[c16] N. S. Grace and K. R. More, Phys. Rev. 45, 166 (1935)

[c17] H. Kopferman and D. Meyer, Zeits. f. Physik 124, 685 (1948)

[c18] Omitted endnote

[c19] O. Laporte and J. E. Mack, Phys. Rev. 63, 246 (1943)

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Hyperfine Structure and Nuclear Spins of Tungsten and Tellurium

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