Skip to main content
SpringerLink
Log in

Total delayed neutron yield from 232Th fission by 3.2–4.9 MeV neutrons

  • Published:
Atomic Energy Aims and scope

The results of measurements of the total yield of delayed neutrons from 232Th fission by 3.2–4.9 MeV neutrons in a setup in the ion guide of the KG-2.5 electrostatic accelerator at the Physics and Power Engineering Institute are presented. Two types of measurements are performed in the experiments. In the first type, the relative yield of delayed neutrons is measured. In the second type, the energy dependence of the total yield of delayed neutrons is studied. The measurements are compared with data obtained by other authors. Three types of data are used for the comparison: experimental, computed, and evaluated data from the ENDF/BVII, JENDL 3.3, and JEFF-3.1 data libraries. The following are obtained: the energy dependence of the total yield of delayed neutrons in the range 3.2–4.9 MeV and the average over the indicated energy range total yield of delayed neutrons per fission 0.0562 ± 0.0015, which can be recommended for use in reactor calculations.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Evaluated Nuclear Data for Nuclides within the Thorium-Uranium Fuel Cycle, IAEA, Vienna (2010).

  2. A. D’Angelo and J. Rowlands, “Conclusions concerning the delayed neutron data for the major actinides,” Prog. Nucl. Energy, 41, No. 1–4, 391–412 (2002).

    Article  Google Scholar 

  3. V. M. Piksaikin, N. N. Semenova, V. I. Milshin, et al., “Method and setup for studying the energy dependence of delayed neutron characteristics in nuclear fission induced by neutrons from the T(p, n), D(d, n), and T(d, n) reactions,” Nucl. Experim. Technol., 49, No. 6, 765–777 (2006).

    Google Scholar 

  4. V. M. Piksaikin, V. V. Korobeinikov, S. G. Isaev, et al., “Absolute measurements of the efficiency of a 4π neutron detector of delayed neutrons,” Vopr. At. Nauki Tekhn. Ser. Yad. Konst., No. 1–2, 26–31 (1997).

  5. V. Piksaikin,V. Shorin, and R. Tertytchnyi, Fission Rate Determination in Delayed Neutron Emission Measurements with T(p, n) and D(d, n) Neutrons, Rep. INDC(CCP)-422, IAEA, Vienna (1999).

  6. M. Drosg and O. Schwerer, Handbook on Nuclear Activation Data, Technol. Rep. 273, IAEA, Vienna (1987).

  7. M. Drosg, Computer-Code Drosg-96 (1996-12-15), Documentation Series, edited by O. Schwerer, IAEA-NDS,Vienna (1997).

  8. G. Brunson and E. Petit, Measurement of Delayed Neutron Yields in Plutonium, Uranium-233, Uranium-238, and Thorium Relative to Yield in Uranium-235, Rep. ANL-5480 (1955).

  9. C. Masters, M. Torpe, and D. Smith, “The measurement of absolute delayed-neutron yields from 3.1- and 14.9 MeV fission,” Nucl. Sci. Eng., 36, 202–208 (1969).

    Google Scholar 

  10. H. Rose and R. Smith, “Delayed neutron investigations with the ZEPHYR fast reactor. Part II – the delayed neutrons arising from fast fission in 235U, 233U, 238U, 239Pu, and 232Th,” Nucl. Energy, 4, 133–142 (1957).

    Google Scholar 

  11. G. Keepin, T. Wimett, and R. Zeigler, “Delayed neutrons from fissionable isotopes of uranium, plutonium and thorium,” Nucl. Energy, 6, 1–21 (1957).

    Google Scholar 

  12. B. P. Moskalenko, At. Énerg., 7, 474 (1959).

    Google Scholar 

  13. R. Waldo, R. Karam, and R. Meyer, “Delayed neutron yields: time dependent measurements and a predictive model,” Phys. Rev. C, 23, No. 3, 1113–1127 (1981).

    Article  ADS  Google Scholar 

  14. M. Brady and T. England, “Delayed neutron data and group parameters for 43 fissioning systems,” Nucl. Sci. Eng., 103, 129–149 (1989).

    Google Scholar 

  15. W. Wilson and T. England, “Delayed neutron study using ENDF/B-VI basic nuclear data,” Prog. Nucl. Energy, 41, No. 1–4, 71–107 (2002).

    Article  Google Scholar 

  16. S. Cox and E. Whiting, Delayed Neutron Data Review and Evaluation, Rep. ANL-7610 (1970).

  17. J. Blachot, C. Chung, and F. Storrer, “JEF-2 delayed neutron yields for 39 fissioning systems,” Ann. Nucl. Energy, 24, No. 6, 489–504 (1997).

    Article  Google Scholar 

  18. R. Mills, M. James, and D. Weaver, “Study of the delayed neutron yield and its time dependence by summation method, and the sensitivity of the yield to parameters of the independent yield model and the decay data,” in: Proc. Intern. Conf. on Nuclear Data for Science and Technology, Julich, Germany (1991), pp. 86–88.

  19. L. G. Manevich, P. E. Nemirovskii, and M. S. Yudkevich, “Calculation of the integral characteristics of delayed neutrons,” Vopr. At. Nauki Tekhn. Ser. Yad. Konst., No. 2, 3–12 (1988).

  20. R. Tuttle, “Delayed neutron yield in nuclear fission,” in: Proc. Consultants’ Meeting on Delayed Neutron Properties, Rep. INDC(NDS)-107/G, IAEA, Vienna (1979), pp. 29–67.

  21. V. M. Piksaikin, S. G. Isaev, and A. A. Goverdovski, “Characteristics of delayed neutrons: systematics and correlation properties,” Prog. Nucl. Energy, 41, No. 1–4, 361–384 (2002).

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. State Science Center of the Russian Federation – Leipunskii Institute for Physics and Power Engineering (GNTs RF – FEI), Obninsk, Russia

    V. M. Piksaikin, A. S. Egorov, K. V. Mitrofanov & A. A. Goverdovski

Authors
  1. V. M. Piksaikin
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. S. Egorov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. K. V. Mitrofanov
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. A. A. Goverdovski
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Translated from Atomnaya Énergiya, Vol. 112, No. 6, pp. 350–355, June, 2012.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Piksaikin, V.M., Egorov, A.S., Mitrofanov, K.V. et al. Total delayed neutron yield from 232Th fission by 3.2–4.9 MeV neutrons. At Energy 112, 428–434 (2012). https://doi.org/10.1007/s10512-012-9579-5

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10512-012-9579-5

Keywords

Search

Navigation