Skip to main content

Еxperiment on 9Be(α, α'n)X Coincidence at an Energy of 30 MeV


The registration of inelastically scattered particles (α or d) in coincidence with particles emitted during the decay of these states is proposed to determine the cluster structure of excited states of the 9Be nucleus. 9Be(α, α'x) and 9Be(d, d 'x) reactions are simulated kinematically. It is shown that analyzing the energy spectrum of a decay particle (e.g., x = n, α) allows the contribution from different cluster configurations to the structure of these states to be determined. An experimental setup is created and tested that allows detection of scattered alpha-particles in coincidence with a decay particle. Spectra of the scattered alpha particles in coincidence with neutrons and gamma quanta are obtained.

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

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.


  1. 1

    Brown, T.A.D., Papka, P., Fulton, B.R., et al., Phys. Rev. C: Nucl. Phys., 2007, vol. 76, 054605.

    ADS  Article  Google Scholar 

  2. 2

    Papka, P., Brown, T.A.D., Fulton, B.R., et al., Phys. Rev. C: Nucl. Phys., 2007, vol. 75, 045803.

    ADS  Article  Google Scholar 

  3. 3

    Lukyanov, S.M., Denikin, A.S., Voskoboynik, E.I., et al., J. Phys. G: Nucl. Part. Phys., 2014, vol. 41, 035102.

    ADS  Article  Google Scholar 

  4. 4

    Hirayama, Y., Shimoda, T., Miyatake, H., et al., Phys. Rev. C: Nucl. Phys., 2007, vol. 91, 024328.

    ADS  Article  Google Scholar 

  5. 5

    Denikin, A.S., Lukyanov, S.M., Skobelev, N.K., et al., Phys. Part. Nucl. Lett., 2015, vol. 12, p. 703.

    Article  Google Scholar 

  6. 6

    Zuyev, S.V., Kasparov, A.A., and Konobeevski, E.S., Bull. Russ. Acad. Sci.: Phys., 2017, vol. 81, p. 679.

    Article  Google Scholar 

  7. 7

    Tilley, D.R., Kelley, J.H., Godwin, J.L., et al., Nucl. Phys. A, 2004, vol. 745, p. 155.

    ADS  Article  Google Scholar 

Download references


This work was supported by the Russian Foundation for Basic Research, project no. 18-32-00944.

Author information



Corresponding authors

Correspondence to A. A. Afonin or A. A. Kasparov.

Ethics declarations

The authors declare there was no conflict of interest.

Additional information

Translated by G. Dedkov

About this article

Verify currency and authenticity via CrossMark

Cite this article

Afonin, A.A., Zuyev, S.V., Kasparov, A.A. et al. Еxperiment on 9Be(α, α'n)X Coincidence at an Energy of 30 MeV. Bull. Russ. Acad. Sci. Phys. 84, 889–893 (2020).

Download citation