Abstract
Experiments to measure the angular distribution of neutrons produced in 7Li(p, n)7Be nuclear reactions have been carried out at the “Neodymium” picosecond laser facility. A beam of protons was generated on the rear side of a thin aluminum target irradiated by laser radiation with a maximum flux density of 3 × 1018 W cm–2 (λ = 1.055 μm). Traces of organic compounds on the target surface were the source of protons. Protons were incident on a massive LiF target in which the above nuclear reactions occurred. Our measurements have shown that the neutron flux is anisotropic with a degree of anisotropy equal to 2. We have analyzed the angular distribution of the neutron flux using numerical calculations. We show that at certain proton beam parameters characterizing the energy and angular spectra of protons, it is possible to reproduce the experimentally measured angular distribution of the neutron flux. There are proton beam parameters at which the degree of anisotropy of the neutron flux can be increased several-fold compared to the experimentally measured one.
Similar content being viewed by others
REFERENCES
L. Disdier, J.-P. Garconnet, G. Malka, and J.-L. Miquel, Phys. Rev. Lett. 82, 1454 (1999).
L. Disdier, J.-P. Garconnet, and J.-L. Miquel, Inertial Fusion Sciences and Applications 99, Ed. by C. Labaune, W. J. Hogan, and K. A. Tanaka (Elsevier, Paris, 2000), p. 1026.
C. Toupin, E. Lefebvre, and G. Bonnaud, Phys. Plasmas 8, 1011 (2001).
D. Hilscher, O. Berndt, M. Enke, U. Jahnke, P. V. Nickles, H. Ruhl, and W. Sandler, Phys. Rev. E 64, 016414 (2001).
N. Izumi, Y. Sentoku, H. Habaraet, et al., Phys. Rev. E 65, 036413 (2002).
H. Habara, R. Kodama, Y. Sentoku, et al., Phys. Plasmas 10, 3712 (2003).
J. Davis and G. M. Petrov, Plasma Phys. Control. Fusion 50, 065016 (2008).
L. Willingale, G. M. Petrov, A. Maksimchuk, et al., Phys. Plasmas 18, 083106 (2011).
D. P. Higginson, J. M. McNaney, D. C. Swift, et al., Phys. Plasmas 18, 100703 (2011).
J. Krasa, D. Klir, A. Velyhan, et al., High Power Laser Sci. Eng. 2, e19 (2014).
www.clf.stfc.ac.uk.
A. Alejo, H. Ahmed, A. Green, et al., Nuovo Cim. C 38 (6), 1 (2016).
A. Alejo, A. Green, H. Ahmed, et al., Nucl. Instrum. Methods Phys. Res., Sect. A 829, 176 (2016).
S. Kar, A. Green, H. Ahmed, et al., New J. Phys. 18, 053002 (2016).
N. N. Demchenko, S. Yu. Gus’kov, V. B. Rozanov, A. I. Gromov, V. S. Belyaev, D. V. Kovkov, A. V. Lobanov, A. Yu. Kedrov, A. P. Matafonov, and V. P. Krainov, J. Exp. Theor. Phys. 128, 178 (2019).
K. L. Lancaster, S. Karch, and H. Habaraetal, Phys. Plasmas 11, 3404 (2004).
A. Youssef, R. Kodama, and M. Tampo, Phys. Plasmas 13, 030702 (2006).
A. Youssef, R. Kodama, and M. Tampo, Phys. Plasmas 13, 030701 (2006).
G. M. Petrov, D. P. Higginson, J. Davis, et al., Phys. Plasmas 19, 093106 (2012).
C. M. Brenner, S. R. Mirfayzi, D. R. Rusby, et al., Plasma Phys. Control. Fusion 58, 014039 (2016).
D. A. Vikhlyaev, D. S. Gavrilov, S. A. Gorokhov, et al., in Proceedings of the 40th International Zvenigorod Conference on Physics of Plasma and Controlled Thermonuclear Synthesis, Zvenigorod, 2013, p. 106.
Y. Xu, G. Randers-Pehrson, S. A. Marino, et al., Radiat. Protect. Dosim. 145, 373 (2011).
M. Lebois, J. N. Wilson, P. Halipre, et al., Nucl. Instrum. Methods Phys. Res., Sect. A 735, 145 (2014).
V. P. Krainov, Phys. At. Nucl. 74, 1410 (2011).
V. S. Belyaev, V. I. Vinogradov, A. P. Matafonov, V. P. Krainov, V. S. Lisitsa, V. P. Andrianov, G. N. Ignatyev, Yu. A. Merkul’ev, V. S. Bushuev, and A. I. Gromov, Phys. At. Nucl. 71, 443 (2008).
V. S. Belyaev, V. I. Vinogradov, A. P. Matafonov, S. M. Rybakov, V. P. Krainov, V. S. Lisitsa, V. P. Andrianov, G. N. Ignatiev, V. S. Bushuev, A. I. Gromov, A. S. Rusetsky, and V. A. Dravin, Phys. At. Nucl. 72, 1077 (2009).
G. L. Squires, Practical Physics, 4th ed. (Cambridge Univ. Press, Cambridge, 2008).
N. N. Demchenko, V. B. Rozanov, V. S. Belyaev, et al., J. Russ. Laser Res. 36, 300 (2015).
H. Liskien and A. Paulsen, At. Data Nucl. Data Tabl. 15, 57 (1975).
Physical Values, The Handbook, Ed. by I. S. Grigor’ev and E. Z. Meilikhov (Energoatomizdat, Moscow, 1991) [in Russian].
N. Izumi, Y. Sentoku, H. Habara, et al., Phys. Rev. E 65, 036413 (2002).
V. S. Belyaev, A. P. Matafonov, S. M. Ribakov, V. P. Danilov, V. P. Krainov, V. S. Lisitsa, V. P. Andrianov, G. N. Ignatyev, and A. S. Rusitski, Phys. At. Nucl. 73, 1820 (2010).
A. Pukhov, Z. M. Sheng, and J. Meer-ter-Vehen, Phys. Plasmas 6, 2847 (1999).
Funding
This work was financially supported by the Russian Foundation for Basic Research (project nos. 17-02-00021, 18-29-21021, and 19-02-00299) and the Ministry of Education and Science of the Russian Federation (project no. 3.873.2017/4.6).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated by V. Astakhov
Rights and permissions
About this article
Cite this article
Demchenko, N.N., Belyaev, V.S., Matafonov, A.P. et al. Experimental and Theoretical Research on the Angular Distribution of Neutrons Produced in 7Li(p, n)7Be Reactions during the Interaction of Intense Laser Pulses with Solid Targets. J. Exp. Theor. Phys. 129, 357–367 (2019). https://doi.org/10.1134/S1063776119090024
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063776119090024