The Energies of the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>γ</mi></math></span>-Rays from Radioactive Scandium, Gallium, Tungsten, and Lanthanum

C. E. Mandeville

doi:10.1103/PhysRev.64.147

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The Energies of the $γ$ -Rays from Radioactive Scandium, Gallium, Tungsten, and Lanthanum

C. E. Mandeville^*

The Rice Institute, Houston, Texas

^*At present at the Radiation Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts.

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Phys. Rev. 64, 147 – Published 1 September, 1943

DOI: https://doi.org/10.1103/PhysRev.64.147

Abstract

The energies of some $γ$ -rays have been determined by the method of semicircular focusing of Compton recoils in a magnetic spectrograph. The results thus obtained are as follows:

The two quanta emitted in the disintegration of ${Ga}^{72}$ are present with equal intensity, which suggests that they may be in cascade. The $γ$ -ray activity of ${Ga}^{72}$ was followed for 100 hours and was found to decay with a half-period of 14.25±0.20 hr.

References (15)

C. E. Mandeville, Phys. Rev. 62, 309 (1942) 63, 387 (1943)
C. E. Mandeville, Phys. Rev. 62, 555 (1942)
H. Walke, Phys. Rev. 57, 163 (1940)
C. T. Hibdon, M. L. Pool, and J. D. Kurbatov, Phys. Rev. 63, 462 (1943)
R. Sagane, Phys. Rev. 55, 31 (1939)
R. Sagane, S. Kojima, and G. Miyamoto, Proc. Phys. Math. Soc. Japan 21, 728 (1939)
J. J. Livingood and G. T. Seaborg, Rev. Mod. Phys. 12, 30 (1940)
M. Deutsch, Phys. Rev. 61, 672 (1941)
M. Deutsch, J. R. Downing, L. G. Elliot, J. W. Irvine, Jr., and A. Roberts, Phys. Rev. 62, 3 (1942)
Lise Meitner, Phys. Rev. 63, 73 (1943)
Kasimir Fajans and W. H. Sullivan, Phys. Rev. 58, 276 (1940)
Arnold F. Clark, Phys. Rev. 61, 242 (1942)
G. E. Valley, Phys. Rev. 59, 686 (1941)
K. E. Weimer, M. L. Pool, and J. D. Kurbatov, Phys. Rev. 63, 67 (1943)
M. Deutsch, private communication

[c1] C. E. Mandeville, Phys. Rev. 62, 309 (1942) 63, 387 (1943)

[c2] C. E. Mandeville, Phys. Rev. 62, 555 (1942)

[c3] H. Walke, Phys. Rev. 57, 163 (1940)

[c4] C. T. Hibdon, M. L. Pool, and J. D. Kurbatov, Phys. Rev. 63, 462 (1943)

[c5] R. Sagane, Phys. Rev. 55, 31 (1939)

[c6] R. Sagane, S. Kojima, and G. Miyamoto, Proc. Phys. Math. Soc. Japan 21, 728 (1939)

[c7] J. J. Livingood and G. T. Seaborg, Rev. Mod. Phys. 12, 30 (1940)

[c8] M. Deutsch, Phys. Rev. 61, 672 (1941)

[c9] M. Deutsch, J. R. Downing, L. G. Elliot, J. W. Irvine, Jr., and A. Roberts, Phys. Rev. 62, 3 (1942)

[c10] Lise Meitner, Phys. Rev. 63, 73 (1943)

[c11] Kasimir Fajans and W. H. Sullivan, Phys. Rev. 58, 276 (1940)

[c12] Arnold F. Clark, Phys. Rev. 61, 242 (1942)

[c13] G. E. Valley, Phys. Rev. 59, 686 (1941)

[c14] K. E. Weimer, M. L. Pool, and J. D. Kurbatov, Phys. Rev. 63, 67 (1943)

[c15] M. Deutsch, private communication

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The Energies of the $γ$ -Rays from Radioactive Scandium, Gallium, Tungsten, and Lanthanum

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The Energies of the γ-Rays from Radioactive Scandium, Gallium, Tungsten, and Lanthanum

Abstract

References (15)

The Energies of the $γ$ -Rays from Radioactive Scandium, Gallium, Tungsten, and Lanthanum