Radiations from <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">Cd</mi></mrow><mrow><mn>115</mn></mrow></msup></mrow></math>, <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">In</mi></mrow><mrow></mrow><mrow><mn>115</mn></mrow><mrow></mrow><mrow></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mo>*</mo></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>, and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">Hf</mi></mrow><mrow><mn>181</mn></mrow></msup></mrow></math>

C. E. Mandeville; M. V. Scherb; W. B. Keighton

doi:10.1103/PhysRev.75.221

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Radiations from ${Cd}^{115}$ , ${}^{*}{In}^{115}$ , and ${Hf}^{181}$

C. E. Mandeville, M. V. Scherb^*, and W. B. Keighton^†

Bartol Research Foundation of the Franklin Institute, Swarthmore, Pennsylvania

^*Now at Princeton University.
^†Also of the Department of Chemistry, Swarthmore College.

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Phys. Rev. 75, 221 – Published 15 January, 1949

DOI: https://doi.org/10.1103/PhysRev.75.221

Abstract

The characteristic radiations of ${Cd}^{115}$ , ${}^{*}{In}^{115}$ , and ${Hf}^{181}$ have been measured by absorption and coincidence methods. The beta-gamma-coincidence rate of ${Cd}^{115}$ indicates the presence of an inner beta-ray group at 0.46 Mev. Coincidence measurements show that the 4-hour isomer of indium (115) decays with the emission of a single partially converted gamma-ray. ${Hf}^{181}$ was found to emit 0.52 Mev beta-rays (aluminum absorption) and 0.17- and 0.47-Mev gamma-rays (lead absorption). Beta-gamma-coincidence data indicate that the beta-ray spectrum of ${Hf}^{181}$ could be complex. Beta-beta- and gamma-gamma-coincidence data were also obtained.

References (12)

C. E. Mandeville and M. V. Scherb, Phys. Rev. 73, 143 (1948)
C. E. Mandeville and M. V. Scherb, Phys. Rev. 73, 1434 (1948)
J. M. Cork and J. L. Lawson, Phys. Rev. 56, 241 (1939)
J. L. Lawson and J. M. Cork, Phys. Rev. 57, 982 (1940) [3,4]
C. E. Mandeville and H. W. Fulbright, Phys. Rev. 64, 265 (1943)
R. P. Metcalf, MDDC—614GG
L. E. Glendenin, Nucleonics 2, No. 1, 12 (1948)
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[c1] C. E. Mandeville and M. V. Scherb, Phys. Rev. 73, 143 (1948)

[c2] C. E. Mandeville and M. V. Scherb, Phys. Rev. 73, 1434 (1948)

[c3] J. M. Cork and J. L. Lawson, Phys. Rev. 56, 241 (1939)

[c4] J. L. Lawson and J. M. Cork, Phys. Rev. 57, 982 (1940) [3,4]

[c5] C. E. Mandeville and H. W. Fulbright, Phys. Rev. 64, 265 (1943)

[c6] R. P. Metcalf, MDDC—614GG

[c7] L. E. Glendenin, Nucleonics 2, No. 1, 12 (1948)

[c8] S. DeBenedetti and F. K. McGowan, Phys. Rev. 70, 569 (1946)

[c9] M. L. Wiedenbeck and K. Y. Chu, Phys. Rev. 72, 1164 (1947)

[c10] A. F. Voigt and B. J. Thamer, Phys. Rev. 74, 1264 (1948)

[c11] J. Beneš, A. Ghosh, A. Hedgran, and N. Hole, Nature 162, 262 (1948)

[c12] J. M. Cork, R. G. Shreffler, and C. M. Fowler, Phys. Rev. 72, 1209 (1947)

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Radiations from ${Cd}^{115}$ , ${}^{*}{In}^{115}$ , and ${Hf}^{181}$

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Radiations from Cd115, In115*, and Hf181

Abstract

References (12)

Radiations from ${Cd}^{115}$ , ${}^{*}{In}^{115}$ , and ${Hf}^{181}$