Study of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Hf</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>173</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span> Levels Populated in the Decay of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Ta</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>173</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>

I. Rezanka; I. M. Ladenbauer-Bellis; T. Tamura; W. B. Jones; F. M. Bernthal

doi:10.1103/PhysRevC.7.1663

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Study of ${}^{173}{Hf}$ Levels Populated in the Decay of ${}^{173}{Ta}$

I. Rezanka, I. M. Ladenbauer-Bellis, T. Tamura^*, and W. B. Jones^†

F. M. Bernthal^†,‡,§

Heavy Ion Accelerator Laboratory, Yale University, New Haven, Connecticut 06520

Department of Chemistry and Physics and Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48823, and Heavy Ion Accelerator Laboratory, Yale University, New Haven, Connecticut 06520

^*On leave of absence from Japan Atomic Energy Institute, Tokai-mura, Iharaki-ken, Japan.
^†Work supported by the U.S. Atomic Energy Commission.
^‡Work supported by the U.S. Atomic Energy Commission.
^§Work supported by the National Science Foundation.

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Phys. Rev. C 7, 1663 – Published 1 April, 1973

DOI: https://doi.org/10.1103/PhysRevC.7.1663

Abstract

The decay of ${}^{173}{Ta}$ was studied using high resolution Ge(Li), Si(Li), and Si surface-barrier detectors in singles and coincidence modes. The ${}^{173}{Ta}$ activity was produced via the reaction ${}^{165}{Ho} ({}^{12}C, 4 n) {}^{173}{Ta}$ , at a carbon beam energy of 6.3-6.9 MeV per nucleon. All spectra were obtained from chemically separated Ta sources. Besides the previously known energy levels of ${}^{173}{Hf}$ , the following levels in keV were determined: 255.5, 451.9, 508.9, 635.8, 775.5, 785.3, 811.7, 927.5, 942.5, 1020.3, 1111.4, 1127.0, 1192.8, 1248.3, 1450.0, 1574.2, 1655.6, 1667.1, 1694.3, and 2263.3. Rotational bands based on the ${(\frac{1}{2})}^{-} [521]$ (g.s.), ${(\frac{5}{2})}^{-} [512]$ (107.2 keV), and ${(\frac{7}{2})}^{+} [633]$ (197.5 keV) Nilsson states were observed. The half-lives of the ${(\frac{5}{2})}^{-} [512]$ and the ${(\frac{1}{2})}^{+} [633]$ band heads were determined to be (182±20) nsec and (160±40) nsec, respectively. The probability of the radiative $E 1$ transition between the [633] and [512] band heads was calculated within the framework of Nilsson model including the pairing and Coriolis interactions. From measurement of the $β^{+}$ end-point energy, the mass difference between ${}^{173}{Ta}$ and ${}^{173}{Hf}$ was determined to be 3670±200 keV.

References (31)

A. Bohr and B. Mottelson, K. Dan. Vidensk. Selsk. Mat.-Fys. Medd. 27, (16), (1953)
O. Nathan and S. G. Nilsson in Alpha, Beta- and Gamma-ray Spectroscopy, edited by K. Siegbahn (North-Holland, Amsterdam, 1965), p. 601
I. Rezanka, S. Hultberg, H. Ryde, J. O. Rasmussen, F. M. Bernthal, and J. R. Alonso, in Proceedings of the International Conference on the Properties of Nuclei Far from the Region of Beta-stability, Leysin, Switzerland, 1970 (CERN, Geneva, 1970), p. 949
S. Hultberg, I. Rezanka, and H. Ryde, to be published
K. T. Faler and J. O. Rasmussen, Phys. Rev. 118, 265 (1960)
A. Santoni, A. Carvette, and J. Valentin, J. Phys. (Paris) 24, 407 (1963)
B. Harmatz, T. H. Handley, and J. W. Mihelich, Phys. Rev. 119, 1345 (1966)
B. Harmatz and T. H. Handley, Nucl. Phys. A121, 481 (1968)
I. Rezanka, I. M. Ladenbauer-Bellis, and F. M. Bernthal, Bull. Am. Phys. Soc. 16, 131 (1971)
B. Bocev, P. Broda, J. Zvolský, J. Molnár, and N. Nenov, Joint Institute of Nuclear Research, Dubna, Report No. P6-5704, 1971 (unpublished)
E. L. Hubbard et al., Rev. Sci. Instrum. 32, 621 (1961)
F. F. Felber, Jr., University of California Report No. UCRL-3618, 1957 (unpublished)
C. M. Lederer, J. M. Hollander, and I. Perlman, Table of Isotopes (Wiley, New York, 1967), p. 339, 341
B. Harmatz, T. H. Handley, and J. W. Mihelich, Phys. Rev. 114, 1082 (1959)
J. Valentin, D. J. Horen, and J. M. Hollander, Nucl. Phys. 31, 353 (1962)
Omitted endnote
E. Selin, S. A. Hjorth, and H. Ryde, Phys. Scr. 2, 181 (1970)
I. Kanestrom and G. Løvhøiden, Nucl. Phys. A160, 665 (1971)
J. W. Bichard, J. W. Mihelich, and B. Harmatz, Phys. Rev. 116, 720 (1959)
S. G. Nilsson et al., Nucl. Phys. A131, 1 (1969)
Yu. T. Grin and I. M. Pavlichenkov, Nucl. Phys. 65, 686 (1965)
F. M. Bernthal and J. O. Rasmussen, Nucl. Phys. A101, 513 (1967)
W. Ogle, S. Wahlborn, R. Piepenbring, and S. Fredriksson, Rev. Mod. Phys. 43, 424 (1971)
A. Faessler and A. Plastino, Nucl. Phys. A94, 580 (1967)
G. Monsonego and R. Piepenbring, Phys. Lett. 21, 180 (1966)
R. Piepenbring, Ph.D. thesis, University of Strassbourg, 1966 (unpublished)
K. Neergard and P. Vogel, Nucl. Phys. A145, 33 (1970)
T. L. Khoo, Ph.D. thesis, McMaster University, 1972 (unpublished)
K. E. G. Lobner, H. A. Smith, and M. E. Bunker, Nucl. Phys. A179, 276 (1972)
K. S. Krane, J. R. Sites, and W. A. Steyert, Phys. Rev. C 5, 1104 (1972)
J. Konijn, B. J. Meijer, and G. van Middelkoop, Phys. Letters 35B, 567 (1971)

[c1] A. Bohr and B. Mottelson, K. Dan. Vidensk. Selsk. Mat.-Fys. Medd. 27, (16), (1953)

[c2] O. Nathan and S. G. Nilsson in Alpha, Beta- and Gamma-ray Spectroscopy, edited by K. Siegbahn (North-Holland, Amsterdam, 1965), p. 601

[c3] I. Rezanka, S. Hultberg, H. Ryde, J. O. Rasmussen, F. M. Bernthal, and J. R. Alonso, in Proceedings of the International Conference on the Properties of Nuclei Far from the Region of Beta-stability, Leysin, Switzerland, 1970 (CERN, Geneva, 1970), p. 949

[c4] S. Hultberg, I. Rezanka, and H. Ryde, to be published

[c5] K. T. Faler and J. O. Rasmussen, Phys. Rev. 118, 265 (1960)

[c6] A. Santoni, A. Carvette, and J. Valentin, J. Phys. (Paris) 24, 407 (1963)

[c7] B. Harmatz, T. H. Handley, and J. W. Mihelich, Phys. Rev. 119, 1345 (1966)

[c8] B. Harmatz and T. H. Handley, Nucl. Phys. A121, 481 (1968)

[c9] I. Rezanka, I. M. Ladenbauer-Bellis, and F. M. Bernthal, Bull. Am. Phys. Soc. 16, 131 (1971)

[c10] B. Bocev, P. Broda, J. Zvolský, J. Molnár, and N. Nenov, Joint Institute of Nuclear Research, Dubna, Report No. P6-5704, 1971 (unpublished)

[c11] E. L. Hubbard et al., Rev. Sci. Instrum. 32, 621 (1961)

[c12] F. F. Felber, Jr., University of California Report No. UCRL-3618, 1957 (unpublished)

[c13] C. M. Lederer, J. M. Hollander, and I. Perlman, Table of Isotopes (Wiley, New York, 1967), p. 339, 341

[c14] B. Harmatz, T. H. Handley, and J. W. Mihelich, Phys. Rev. 114, 1082 (1959)

[c15] J. Valentin, D. J. Horen, and J. M. Hollander, Nucl. Phys. 31, 353 (1962)

[c16] Omitted endnote

[c17] E. Selin, S. A. Hjorth, and H. Ryde, Phys. Scr. 2, 181 (1970)

[c18] I. Kanestrom and G. Løvhøiden, Nucl. Phys. A160, 665 (1971)

[c19] J. W. Bichard, J. W. Mihelich, and B. Harmatz, Phys. Rev. 116, 720 (1959)

[c20] S. G. Nilsson et al., Nucl. Phys. A131, 1 (1969)

[c21] Yu. T. Grin and I. M. Pavlichenkov, Nucl. Phys. 65, 686 (1965)

[c22] F. M. Bernthal and J. O. Rasmussen, Nucl. Phys. A101, 513 (1967)

[c23] W. Ogle, S. Wahlborn, R. Piepenbring, and S. Fredriksson, Rev. Mod. Phys. 43, 424 (1971)

[c24] A. Faessler and A. Plastino, Nucl. Phys. A94, 580 (1967)

[c25] G. Monsonego and R. Piepenbring, Phys. Lett. 21, 180 (1966)

[c26] R. Piepenbring, Ph.D. thesis, University of Strassbourg, 1966 (unpublished)

[c27] K. Neergard and P. Vogel, Nucl. Phys. A145, 33 (1970)

[c28] T. L. Khoo, Ph.D. thesis, McMaster University, 1972 (unpublished)

[c29] K. E. G. Lobner, H. A. Smith, and M. E. Bunker, Nucl. Phys. A179, 276 (1972)

[c30] K. S. Krane, J. R. Sites, and W. A. Steyert, Phys. Rev. C 5, 1104 (1972)

[c31] J. Konijn, B. J. Meijer, and G. van Middelkoop, Phys. Letters 35B, 567 (1971)

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Study of ${}^{173}{Hf}$ Levels Populated in the Decay of ${}^{173}{Ta}$

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Study of Hf173 Levels Populated in the Decay of Ta173

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Study of ${}^{173}{Hf}$ Levels Populated in the Decay of ${}^{173}{Ta}$