THE VALUE AND THE SIGN ESTIMATION OF THE ROT EFFECT FOR 239,241Pu ISOTOPES DURING THEIR FISSION BY POLARIZED NEUTRONS IN THE RESONANT ENERGY REGION

Cover Page

Cite item

Full Text

Abstract

It is proposed to measure the shift in the angular distribution of light charged particles (LCP) in ternary fission caused by polarized neutrons of plutonium isotopes in the resonance region with 𝐸𝑛 = 0.264 eV for the 241Pu target and 𝐸𝑛 = 0.294 eV for the 239Pu target. The reliability of interpretation of these experiments will compare favorably with measurements carried out previously at 𝐸𝑛 = 4.5 meV. The advantage is associated with a noticeable weakening of the influence of resonances, the parameters of which may raise some doubts. We are talking about resonances introduced at neutron energies 𝐸𝑛 < 0 eV. In addition, in the region of these two resonances, the fractions of impurity partial cross sections with a spin different from the spin of the resonance itself are small. It is important that the magnitude of the effects expected at the indicated resonance energies will be significantly greater than those previously obtained in the cold neutron energy region.

About the authors

I. S. Guseva

National Research Center “Kurchatov Institute” — PNPI

Email: guseva_is@pnpi.nrcki.ru
Gatchina, Russia

Yu. I. Gusev

National Research Center “Kurchatov Institute” — PNPI

Email: gusev_yi@pnpi.nrcki.ru
Gatchina, Russia

References

  1. F. Goennenwein, M. Mutterer, A. Gagarski,I. Guseva, G. Petrov, V. Sokolov, T. Zavarukhina,Yu. Gusev, J. von Kalben, V. Nesvizhevski, and T. Soldner, Phys. Lett. B 652, 13 (2007).
  2. A. Gagarski, F. Goennenwein, I. Guseva, P. Jesinger,Yu. Kopatch, T. Kuzmina, E. Leli’evre-Berna,M. Mutterer, V. Nesvizhevsky, G. Petrov, et al., Phys.Rev. C 93, 054619 (2016).
  3. A. Bohr and B. R. Mottelson, Nuclear Sructure,Vol. 2: Nuclear Deformation (Benjamin, New York,1975).
  4. И. С. Гусева, Ю. И. Гусев, Изв. РАН. Сер. физ. 71,382 (2007)
  5. S. Guseva and Yu. I. Gusev, Bull. Russ.Acad. Sci.: Phys. 71, 367 (2007).
  6. I. Guseva and Yu. Gusev, AIP Conf. Proc. 1175, 355(2009).
  7. В. Е. Бунаков, С. Г. Кадменский, ЯФ 71, 1227(2008)
  8. V. E. Bunakov and S. G. Kadmenski, Phys.At. Nucl. 71, 1200 (2008).
  9. N. M. Larson, Updated Users Guide for SAMMY: Multilevel R-matrix Fits to Neutron Data Using Bayes Equations (Oak Ridge National Laboratory,Oak Ridge, TN 37831, 2008).
  10. D. A. Brown, M. B. Chadwick, R. Capote,A. C. Kahler, A. Trkov, M. W. Herman,A. A. Sonzogni, Y. Danon, A. D. Carlson, M. Dunn,et al., Nucl. Data Sheets 148, 1 (2018).
  11. Y. Bohne, Z. Fraenkel, and I. Nebenzahl, Phys. Rev.156, 1305 (1967).
  12. M. Borkovski, Yu. Gusev, Yu. Zalite, and D. Seliverstov, in Proceedings of the 18th International Symposium on Nuclear Physics,Physics and Chemistry of Fission, Gaussig (1988),p. 181.
  13. W. Baum, PhD Thesis, Institute fur Kernphysik (THDarmstadt, 1992).
  14. Г. В. Данилян, Й. Кленке, В. А. Крахотин и др.,ЯФ 72, 1872 (2009)
  15. G. V. Danilyan, J. Klenke,V. A. Krakhotin, et al., Phys. At. Nucl. 72, 1812(2009).
  16. Г. В. Вальский, А. М. Гагарский, И. С. Гусева и др.,Изв. РАН. Сер. физ. 74, 803 (2010)
  17. G. V. Valsky,A. M. Gagarski, I. S. Guseva, et al., Bull. Russ. Acad.Sci.: Phys. 74, 767 (2010).
  18. D. Berikov, G. Ahmadov, Yu. Kopatch,A. Gagarski, V. Novitsky, H. Deng, G. Danilyan,S. Masalovich, Z. Salhi, E. Babcock, J. Klenke,and V. Hutanu, Phys. Rev. C 104(2), 024607; doi: 10.1103/PhysRevC.104.024607
  19. V. M. Strutinskii, JETP 10, 613 (1959).
  20. В. Е. Бунаков, И. С. Гусева, С. Г. Кадменский,Г. А. Петров, Изв. РАН. Сер. физ. 70, 1618 (2006)
  21. V. E. Bunakov, I. S. Guseva, S. G. Kadmenski, and G. A. Petrov, Bull. Russ. Acad. Sci.: Phys. 70, 1853(2006).
  22. I. S. Guseva, in Proceedings of the XVIII International Seminar on Interaction of Neutronswith Nuclei, Dubna, May 26–29, 2010 (Joint Institute for Nuclear Research, Dubna, Russia,2011), p. 84.
  23. И. С. Гусева, А. М. Гагарский, Ю. И. Гусев идр., Письма в ЭЧАЯ 10, 532 (2013)
  24. S. Guseva,A. M. Gagarski, Yu. I. Gusev, et al., Phys. Part. Nucl.Lett. 10, 331 (2013).
  25. R. Vandenbosch and J. R. Huizenga, Nuclear Fission (Academic Press, New York, 1973), p. 422.

Supplementary files

Supplementary Files
Action
1. JATS XML
Download

Copyright (c) 2024 Russian Academy of Sciences

Согласие на обработку персональных данных

 

Используя сайт https://journals.rcsi.science, я (далее – «Пользователь» или «Субъект персональных данных») даю согласие на обработку персональных данных на этом сайте (текст Согласия) и на обработку персональных данных с помощью сервиса «Яндекс.Метрика» (текст Согласия).