The Decay of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">Rh</mi></mrow><mrow><mn>1</mn><mn>0</mn><mn>4</mn><mi>m</mi></mrow></msup></mrow></math></span> (4.3 Min) and <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">Rh</mi></mrow><mrow><mn>104</mn></mrow></msup></mrow></math></span> (44 Sec)

W. C. Jordan; J. M. Cork; S. B. Burson

doi:10.1103/PhysRev.90.862

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The Decay of ${Rh}^{104 m}$ (4.3 Min) and ${Rh}^{104}$ (44 Sec)

W. C. Jordan, J. M. Cork, and S. B. Burson

Argonne National Laboratory, Lemont, Illinois, and University of Michigan, Ann Arbor, Michigan

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Phys. Rev. 90, 862 – Published 1 June, 1953

DOI: https://doi.org/10.1103/PhysRev.90.862

Abstract

The radiations of neutron-activated rhodium are studied with 180° constant field conversion electron spectrometers and a gamma-ray scintillation spectrometer. Internal conversion electrons are observed to be associated with the 4.3-minute activity. These are interpreted as arising from two isomeric transitions of 51.1±0.2 and 77.2±0.2 kev in rhodium. By coincidence studies these two transitions are shown to be in cascade. The character of the radiations, as determined from the $\frac{K}{L}$ ratios and lifetime considerations, appears to be $M 1$ and $E 3$ , respectively. Additional gamma-rays of energy 550±10 kev and ∼1.2 Mev (weak) are observed with the scintillation spectrometer. The 550-kev transition is associated with both the 44-second and the 4.3-minute periods and is assumed to follow the beta-decay and hence be in ${Pd}^{104}$ .

References (14)

Amaldi, D'Agostino, Fermi, Pontecorvo, and Segré, Proc. Roy. Soc. (London) A149, 522 (1935)
K. Way et al., Nuclear Data, National Bureau of Standards Circular No. 499 (1950)
E. der Mateosian and M. Goldhaber, Phys. Rev. 82, 115 (1951)
D. Maeder and P. Preiswerk, Helv. Phys. Acta 25, 625 (1951)
P. Chudom and C. Muehlhause, Plutonium Project Report CP-3801, 25, (1947) (unpublished)
B. Cacciapuoti, Nuovo cimento 4, 31 (1947)
Rutledge, Cork, and Burson, Phys. Rev. 86, 775 (1952) Argonne National Laboratory Report ANL-4735 (unpublished)
M. Goldhaber and A. Sunyar, Phys. Rev. 83, 906 (1951)
J. Mihelich and E. Church, Phys. Rev. 85, 733 (1952) J. Mihelich, 87, 646 (1952)
B. Hamermesh and V. Hummel, Phys. Rev. 88, 916 (1952)
R. Swank and J. Moenich, Rev. Sci. Instr. 23, 502 (1952)
G. Sizoo and L. Friele, Physica 10, 57 (1943)
G. Scharff-Goldhaber, Phys. Rev. 87, 218 (1952)
S. Moszkowski, Phys. Rev. 82, 35 (1951)

[c1] Amaldi, D'Agostino, Fermi, Pontecorvo, and Segré, Proc. Roy. Soc. (London) A149, 522 (1935)

[c2] K. Way et al., Nuclear Data, National Bureau of Standards Circular No. 499 (1950)

[c3] E. der Mateosian and M. Goldhaber, Phys. Rev. 82, 115 (1951)

[c4] D. Maeder and P. Preiswerk, Helv. Phys. Acta 25, 625 (1951)

[c5] P. Chudom and C. Muehlhause, Plutonium Project Report CP-3801, 25, (1947) (unpublished)

[c6] B. Cacciapuoti, Nuovo cimento 4, 31 (1947)

[c7] Rutledge, Cork, and Burson, Phys. Rev. 86, 775 (1952) Argonne National Laboratory Report ANL-4735 (unpublished)

[c8] M. Goldhaber and A. Sunyar, Phys. Rev. 83, 906 (1951)

[c9] J. Mihelich and E. Church, Phys. Rev. 85, 733 (1952) J. Mihelich, 87, 646 (1952)

[c10] B. Hamermesh and V. Hummel, Phys. Rev. 88, 916 (1952)

[c11] R. Swank and J. Moenich, Rev. Sci. Instr. 23, 502 (1952)

[c12] G. Sizoo and L. Friele, Physica 10, 57 (1943)

[c13] G. Scharff-Goldhaber, Phys. Rev. 87, 218 (1952)

[c14] S. Moszkowski, Phys. Rev. 82, 35 (1951)

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The Decay of ${Rh}^{104 m}$ (4.3 Min) and ${Rh}^{104}$ (44 Sec)

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The Decay of Rh104m (4.3 Min) and Rh104 (44 Sec)

Abstract

References (14)

The Decay of ${Rh}^{104 m}$ (4.3 Min) and ${Rh}^{104}$ (44 Sec)