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Distribution of the ratio of radiation capture and fission cross sections for Pu239 with respect to height in the BR-5 reactor

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Abstract

A study was made of the distribution of the ratio α of radiation capture and fission cross sections for Pu239 with respect to height in the BR-5 reactor. The distribution of neutron capture reactions was measured by determining the concentration of Pu240 from the rate of spontaneous fissions in plutonium samples irradiated in the reactor with an integral flux of 1021 to 1022 neutrons/cm2. As initial material for irradiation, almost isotopically pure Pu239 (Pu240 content ≅5·10−3% was used. The values of β obtained rose from 0.1 to 0.8 on moving away from the center of the reactor. The data corresponding to equilibrium neutron spectra in the active zone and the outer region of the reflector agree with the results of measuringσ γ andσ f in monoenergetic neutrons.

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Literature Cited

  1. 1.

    F. Farley, J. Nucl. Energy,3, 33 (1956).

  2. 2.

    L. Bollinger, P. Cote, and G. Thomas, Collection: Proceedings of the Second International Conference on the Peaceful Uses of Atomic Energy, Selected Reports of Foreign Authors [Russian translation] (Atomizdat, Moscow, 1959), Vol. 2, p. 123.

  3. 3.

    I. V. Kirpichnikov and S. I. Sukhoruchkin, Atomnaya Énergiya,7, 429 (1959).

  4. 4.

    P. E. Spivak et al., Atomnaya Énergiya, No. 3, 21 (1956).

  5. 5.

    R. Maclin, H. Schmitt, and J. Gibbons, Phys. Rev.,102, 797 (1956).

  6. 6.

    V. N. Andreev, Atomnaya Énergiya,4, 125 (1958).

  7. 7.

    J. Hopkins and B. Diven, Nucl. Sci. and Engng.,12, 169 (1962).

  8. 8.

    P. Kafalas, M. Levenson, and C. Stevens, Nucl. Sci. and Engng.,2, 657 (1957).

  9. 9.

    V. Cann, G. Stuart, and F. White, Experimental Reactors and Reactor Physics, Reports of Foreign Scientists to the International Conference on the Peaceful Uses of Atomic Energy, Geneva, 1955 [Russian translation] (Gostekhizdat, Moscow, 1956), p. 633.

  10. 10.

    B. G. Erozolimskii, Session of the Academy of Sciences of the USSR on the Peaceful Uses of Atomic Energy (Meeting of the Department of Physical and Mathematical Sciences) [in Russian] (Izd. AN SSSR, Moscow, 1955), p. 369.

  11. 11.

    A. I. Leipunskii et al., Atomnaya Énergiya,11, 498 (1961).

  12. 12.

    M. N. Nikolaev et al., Proceedings of the Seminar on the Physics of Fast and Intermediate Reactors. IAEA (Vienna, 1961), Vol. 1, p. 65.

  13. 13.

    V. I. Galkov et al., Atomnaya Énergiya,12, 56 (1962).

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Additional information

Translated from Atomnaya Énergiya, Vol. 16, No. 6, pp. 497–500, June, 1964

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Ivanov, V.I., Krot, N.N. & Smirenkin, G.N. Distribution of the ratio of radiation capture and fission cross sections for Pu239 with respect to height in the BR-5 reactor. At Energy 16, 615–618 (1964). https://doi.org/10.1007/BF01115665

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Keywords

  • Radiation
  • Plutonium
  • Outer Region
  • Active Zone
  • Initial Material