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Experimental estimates on radiative strength function of low-energy γ-quanta following even-odd heavy nuclei decay

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Zeitschrift für Physik A Hadrons and Nuclei

Abstract

The applicability of the method of summed amplitudes of coinciding pulses to determine radiative strength functions of heavy nuclei by measuring two-step cascadeγ-ray spectra is discussed. Experiments based on thermal neutron capture in136Ba and180Hf were carried out to test this method. The values obtained for the radiative strength functions of a wide range of primary transitions were compared with the predictions of two modifications of the giant dipole resonance model. Some insight into the characteristics of theγ-decay of compound-states is provided by analyzing the information obtained on the two-stepγ-decay of a number of nuclei in the mass region 137≦A≦187.

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Authors and Affiliations

  1. Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980, Dubna, Russia

    S. T. Boneva, V. A. Khitrov, Yu. V. Kholnov, Le Hong Khiem, Pham Dinh Khang, Yu. P. Popov & A. M. Sukhovoj

  2. Physics Institute, Latvian Academy of Sciences, 229021, Salaspils, Latvia

    V. A. Bondarenko, I. L. Kuvaga, P. T. Prokofiev, G. L. Rezvaja & L. I. Simonova

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  1. S. T. Boneva
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  2. V. A. Khitrov
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  3. Yu. V. Kholnov
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  4. Le Hong Khiem
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  5. Pham Dinh Khang
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  6. Yu. P. Popov
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  7. A. M. Sukhovoj
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  8. V. A. Bondarenko
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  9. I. L. Kuvaga
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  10. P. T. Prokofiev
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  11. G. L. Rezvaja
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  12. L. I. Simonova
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Additional information

Authors' thanks are due to Mrs. T.F. Drozdova and Dr. M.A. Ali for their help in the preparation of the English version of this paper.

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Boneva, S.T., Khitrov, V.A., Kholnov, Y.V. et al. Experimental estimates on radiative strength function of low-energy γ-quanta following even-odd heavy nuclei decay. Z. Physik A - Hadrons and Nuclei 346, 35–42 (1993). https://doi.org/10.1007/BF01290779

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  • DOI: https://doi.org/10.1007/BF01290779

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