Nuclear Physics and Atomic Energy

Ядерна фізика та енергетика
Nuclear Physics and Atomic Energy

  ISSN: 1818-331X (Print), 2074-0565 (Online)
  Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine
  Languages: Ukrainian, English
  Periodicity: 4 times per year

  Open access peer reviewed journal

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Nucl. Phys. At. Energy 2002, volume 3, issue 2, pages 46-50.
Section: Nuclear Physics.
Received: 28.05.2002; Published online: 30.12.2002.
PDF Full text (ru)
https://doi.org/10.15407/jnpae2002.02.046

Measurement of isomeric ratios in 232Th photofission products

O. A. Bezsheyko1, V. A. Zheltonozhsky2, I. N. Kadenko1, N. V. Strilchuk2

1Kyiv Taras Shevchenko National University, Kyiv, Ukraine
2Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

Abstract: Measurement of activity of 232Th photofission products with T1/2 = 1 min ÷ 10 h has been carried out using γ-spectroscopy technique. The targets were irradiated by bremsstrahlung γ-quanta from Mevatron KD2 linear electron accelerator with boundary energy of 23 MeV. Using obtained data about photofission fragments yield isomeric ratios for 117In, 130Sb, 133Te, 134gI and 135Xe nuclei have been measured for the first time at boundary energy of 23 MeV. For the first time mean angular momenta for mentioned above nuclei at 232Th photofission have been determined.

References:

1. Nix J. R., Swiatecki W. J. Nucl. Phys. 71 (1965) 1. https://doi.org/10.1016/0029-5582(65)90038-6

2. Datta T., Dange S. P., Prakash S. K., Ramaniah M. V. Z. Phys. A 324 (1986) 81. https://doi.org/10.1007/BF01290758

3. Wilhelmy J. B., Cheifetz E., Jared R. C. et al. Phys. Rev. C 5 (1972) 2041. https://doi.org/10.1103/PhysRevC.5.2041

4. Тер-Акопян Г. М., Оганесян Ю. Ц., Попеко Г. С. и др. Изв. РАН. Сер. физ. 61 (1997) 185.

5. Вишневский И. Н., Желтоножский В. А., Решитько С. В. Изв. РАН. Сер. физ. 61 (1997) 102.

6. Table of Isotopes. Ed. M. Lederer (New York: J. Wiley and Sons, 1978).

7. Денисов В. Ю., Решитько С. В. Ядерная физика 59 (1996) 78.

8. Вишневский И. Н., Денисов В. Ю., Желтоножский В. А. и др. Ядерная физика 61 (1998) 1562.

9. Warhanec H., Vandenboch R. J. Inorg. Nucl. Chem. 26 (1964) 669. https://doi.org/10.1016/0022-1902(64)80308-0

10. Hsu S. S. et al. Phys. Rev. C 24 (1981) 523. https://doi.org/10.1103/PhysRevC.24.523

11. Jacobs E. et al. Phys. Rev. C 19 (1979) 422. https://doi.org/10.1103/PhysRevC.19.422

12. Jacobs E. et al. Phys. Rev. C 21 (1980) 237. https://doi.org/10.1103/PhysRevC.21.237