Hyperfine Structures of Silver and Gold by the Atomic Beam Magnetic Resonance Method

Günter Wessel; Hin Lew

doi:10.1103/PhysRev.92.641

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Hyperfine Structures of Silver and Gold by the Atomic Beam Magnetic Resonance Method

Günter Wessel^* and Hin Lew

Division of Physics, National Research Council, Ottawa, Canada

^*National Research Laboratories Postdoctorate Fellow.

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Phys. Rev. 92, 641 – Published 1 November, 1953

DOI: https://doi.org/10.1103/PhysRev.92.641

Abstract

An ionizer of the electron bombardment type has been applied to a beam of atoms in a magnetic resonance apparatus. The ionization efficiency for potassium atoms has been found to be 1 part in 3000. The new ionizer has made it possible to study the hyperfine structures and the $g$ factors of the ground states of silver and gold, two elements which cannot be detected by the surface ionization method commonly used heretofore. The measurements yield the following results: $| Δ ν ({Ag}^{107}) | = 1712.56 \pm 0.04 M c / s e c,$ $| Δ ν ({Ag}^{109}) | = 1976.94 \pm 0.04 M c / s e c,$ $\frac{g_{J} (Ag)}{g_{J} (Cs)} = 0.99987 \pm 0.00010,$ $| Δ ν ({Au}^{197}) | = 6107.1 \pm 1.0 M c / s e c,$ $\frac{g_{J} (Au)}{g_{J} (Cs)} = 1.00081 \pm 0.00005.$

References (17)

Davis, Feld, Zabel, and Zacharias, Phys. Rev. 76, 1076 (1949)
E. H. Bellamy and K. F. Smith, Phil. Mag. 44, 33 (1953)
H. Heil, Z. Physik 120, 212 (1943)
W. Paul, Z. Physik 124, 244 (1948)
Brix, Kopfermann, Martin, and Walcher, Z. Physik 130, 88 (1951) D. A. Jackson and H. Kuhn [Proc. Roy. Soc. (London) A158, 372 (1937)] Crawford,, Schawlow, Gray, and Kelly [Can. J. Research A28, 558 (1950)]
F. M. Kelley, Proc. Phys. Soc. (London) A65, 250 (1952) R. Ritschl [Naturwiss. 19, 690 (1931)] R. M. Elliot and J. Wulff [Phys. Rev. 55, 170 (1939)] L. Sibaiya [Proc. Indian Acad. Sci. 2, 313 (1935)]
A. Bohr and V. F. Weisskopf, Phys. Rev. 77, 94 (1950)
A. Bohr, Phys. Rev. 81, 331 (1951)
H. Lew, Phys. Rev. 91, 619 (1953)
Omitted endnote
Omitted endnote
Brix, Kopfermann, Martin, and Walcher ([5])
H. Lyons, Ann. N. Y. Acad. Sci. 55, 831 (1952)
P. Kusch and H. Taub, Phys. Rev. 75, 1477 (1949)
Brix, Eisinger, Lew, and Wessel (following paper), Phys. Rev. 92, 647 (1953)
W. von Siemens, dissertation, Göttingen, 1952 (unpublished)
M. F. Crawford and A. L. Schawlow, Phys. Rev. 76, 1310 (1949)

[c1] Davis, Feld, Zabel, and Zacharias, Phys. Rev. 76, 1076 (1949)

[c2] E. H. Bellamy and K. F. Smith, Phil. Mag. 44, 33 (1953)

[c3] H. Heil, Z. Physik 120, 212 (1943)

[c4] W. Paul, Z. Physik 124, 244 (1948)

[c5] Brix, Kopfermann, Martin, and Walcher, Z. Physik 130, 88 (1951) D. A. Jackson and H. Kuhn [Proc. Roy. Soc. (London) A158, 372 (1937)] Crawford,, Schawlow, Gray, and Kelly [Can. J. Research A28, 558 (1950)]

[c6] F. M. Kelley, Proc. Phys. Soc. (London) A65, 250 (1952) R. Ritschl [Naturwiss. 19, 690 (1931)] R. M. Elliot and J. Wulff [Phys. Rev. 55, 170 (1939)] L. Sibaiya [Proc. Indian Acad. Sci. 2, 313 (1935)]

[c7] A. Bohr and V. F. Weisskopf, Phys. Rev. 77, 94 (1950)

[c8] A. Bohr, Phys. Rev. 81, 331 (1951)

[c9] H. Lew, Phys. Rev. 91, 619 (1953)

[c10] Omitted endnote

[c11] Omitted endnote

[c12] Brix, Kopfermann, Martin, and Walcher ([5])

[c13] H. Lyons, Ann. N. Y. Acad. Sci. 55, 831 (1952)

[c14] P. Kusch and H. Taub, Phys. Rev. 75, 1477 (1949)

[c15] Brix, Eisinger, Lew, and Wessel (following paper), Phys. Rev. 92, 647 (1953)

[c16] W. von Siemens, dissertation, Göttingen, 1952 (unpublished)

[c17] M. F. Crawford and A. L. Schawlow, Phys. Rev. 76, 1310 (1949)

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Hyperfine Structures of Silver and Gold by the Atomic Beam Magnetic Resonance Method

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