Skip to main content

Fragment-Emission Anisotropy in 232Th, 233U, 235U, 238U, 239Pu, 237Np, natPb, and 209Bi Fission Induced by Neutrons with Intermediate Energies of 1–200 MeV

Abstract

Fragment angular distributions in heavy-nuclei fissions induced by neutrons with intermediate energies of 1–200 MeV are measured. Fragment-emission anisotropy W(0°)/W(90°) is studied as a function of incident-neutron energy. Results are consistent with those of other measurements using similar techniques, indicating that the reported measurements are free of significant systemic errors.

This is a preview of subscription content, access via your institution.

Fig. 1.
Fig. 2.
Fig. 3.

REFERENCES

  1. 1

    Vorobyev, A.S., Gagarski, A.M., Shcherbakov, O.A., et al., EPJ Web Conf., 2017, vol. 146, 04011.

  2. 2

    Vorobyev, A.S., Gagarski, A.M., Shcherbakov, O.A., et al., Bull. Russ. Acad. Sci.: Phys., 2018, vol. 82, p. 1240.

    Article  Google Scholar 

  3. 3

    Abrosimov, N.K., Borukhovich, G.Z., Laptev, A.B., et al., Nucl. Instrum. Meth. Phys. Res. A, 1985, vol. 242, p. 121.

    ADS  Article  Google Scholar 

  4. 4

    Shcherbakov, O.A., Vorobyev, A.S., and Ivanov, E.M., Phys. Part. Nucl., 2018, vol. 49, p. 81.

    Article  Google Scholar 

  5. 5

    Vorobyev, A.S., Gagarski, A.M., Shcherbakov, O.A., et al., JETP Lett., 2015, vol. 102, no. 4, p. 203.

    ADS  Article  Google Scholar 

  6. 6

    Vorobyev, A.S., Gagarski, A.M., Shcherbakov, O.A., et al., JETP Lett., 2016, vol. 104, no. 6, p. 365.

    ADS  Article  Google Scholar 

  7. 7

    Vorobyev, A.S., Gagarski, A.M., Shcherbakov, O.A., et al., JETP Lett., 2018, vol. 107, no. 9, p. 521.

    ADS  Article  Google Scholar 

  8. 8

    Vorobyev, A.S., Gagarski, A.M., Shcherbakov, O.A., et al., JETP Lett., 2019, vol. 110, no. 4, p. 242.

    ADS  Article  Google Scholar 

  9. 9

    Ryzhov, I.V., Onegin, M.S., Tutin, G.A., et al., Nucl. Phys. A, 2005, vol. 760, p. 19.

    ADS  Article  Google Scholar 

  10. 10

    Tarrio, D. et al. (n_TOF Collab.), Nucl. Data Sheets, 2014, vol. 119, p. 35.

    ADS  Article  Google Scholar 

  11. 11

    Kleinrath, V., Fission fragment angular distributions in neutron-induced fission of 235U measured with a time projection chamber, PhD Thesis, Vienna: Vienna Univ. Technol., 2015.

  12. 12

    Tassan-Got, L. et al. (n_TOF Collab.), EPJ Web Conf., 2019, vol. 211, 03006.

  13. 13

    Leal-Cidoncha, E. et al. (n_TOF Collab.), EPJ Web Conf., 2016, vol. 111, 10002.

  14. 14

    Leal-Cidoncha, E. et al. (n_TOF Collab.), Workshop “Fission Experiments and Theoretical Advance, FIESTA 2017,” Santa Fe, 2017.

  15. 15

    Geppert-Kleinrath, V. et al. (NIFFTE Collab.), Phys. Rev. C, 2019, vol. 99, 064619.

    ADS  Article  Google Scholar 

  16. 16

    Zerkin, V.V. and Pritychenko, B., Nucl. Instrum. Methods Phys. Res.,Sect. A, 2018, vol. 888, p. 31.

    Google Scholar 

  17. 17

    Simmons, J.E. and Henkel, R.L., Phys. Rev., 1960, vol. 120, p. 198.

    ADS  Article  Google Scholar 

  18. 18

    Iyer, R.H. and Sagu, M.L., Nucl. Phys. A, 1970, vol. 2, p. 57.

    Google Scholar 

  19. 19

    Musgrove, A.R., Boldeman, J.W., Cook, J.L., et al., J. Phys. G: Nucl. Phys., 1981, vol. 7, p. 549.

    ADS  Google Scholar 

  20. 20

    Blumberg, L. and Leachman, R.B., Phys. Rev., 1959, vol. 116, p. 102.

    ADS  Article  Google Scholar 

  21. 21

    Androsenko, Kh.D., Korolev, G.G., and Shpak, D.L., Vopr. At. Nauki Tekh., Ser.: Yad. Konstanty, 1982, vol. 46, no. 2, p. 9.

    Google Scholar 

  22. 22

    Shpak, D.L., Sov. J. Nucl. Phys. 1989, vol. 50, p. 574.

    Google Scholar 

  23. 23

    Leachman, R.B. and Blumberg, L., Phys. Rev., 1965, vol. 137, p. B814.

    ADS  Article  Google Scholar 

  24. 24

    Vives, F., Hambsch, F.-J., Bax, H., and Oberstedt, S., Nucl. Phys. A, 2000, vol. 662, p. 63.

    ADS  Article  Google Scholar 

  25. 25

    Meadows, J.W. and Budtz-Jørgensen, C., Fission fragment angular distributions and total kinetic energies for 235U(n,f) from 0.18 to 8.83 MeV, in Nuclear Data for Science and Technology, Böckhoff, K.H., Ed., Dordrecht: Springer, 1983, p. 740.

    Google Scholar 

  26. 26

    Nesterov, V.G., Smirenkin, G.N., and Shpak, D.L., Sov. J. Nucl. Phys., 1967, vol. 4, p. 713.

    Google Scholar 

  27. 27

    Brolley, J.E. and Dickinson, W.C., Phys. Rev., 1954, vol. 94, p. 640.

    ADS  Article  Google Scholar 

  28. 28

    Shpak, D. L., Fursov, B.I., and Smirenkin, G.N., Sov. J. Nucl. Phys., 1971, vol. 12, p. 19.

    Google Scholar 

  29. 29

    Ouichaoui, S., Juhasz, S., Varnagy, M., and Csikai, J., Acta Phys. Hung., 1988, vol. 64, p. 209.

    Google Scholar 

  30. 30

    Shpak, D.L., Ostapenko, Yu.B., and Smirenkin, G.N., Sov. J. Nucl. Phys., 1971, vol. 13, p. 547.

    Article  Google Scholar 

Download references

ACKNOWLEDGMENTS

The authors thank E.M. Ivanov and the personnel at the PNPI Accelerator Division for their consistently friendly support, and for ensuring stable synchrocyclotron operation throughout our measurements.

Funding

This work was supported in part by the Russian Foundation for Basic Research, project no. 18-02-00571.

Author information

Affiliations

Authors

Corresponding author

Correspondence to A. S. Vorobyev.

Additional information

Translated by A. Asratyan

About this article

Verify currency and authenticity via CrossMark

Cite this article

Vorobyev, A.S., Gagarski, A.M., Shcherbakov, O.A. et al. Fragment-Emission Anisotropy in 232Th, 233U, 235U, 238U, 239Pu, 237Np, natPb, and 209Bi Fission Induced by Neutrons with Intermediate Energies of 1–200 MeV. Bull. Russ. Acad. Sci. Phys. 84, 1245–1251 (2020). https://doi.org/10.3103/S1062873820100299

Download citation