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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2001, Volume 73, Issue 12, Pages 740–745
(Mi jetpl4429)
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This article is cited in 3 scientific papers (total in 3 papers)
PLASMA, GASES
Influence of angles of incidence of laser radiation on the generation of fast ions
S. Yu. Gus'kova, N. N. Demchenkoa, K. N. Makarovb, S. G. Nishchukb, T. A. Pikuzc, Yu. A. Satovb, I. Yu. Skobelevc, Yu. B. Smakovskiib, A. Ya. Faenovc, S. V. Khomenkob, B. Yu. Sharkovd a P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
b Troitsk Institute for Innovation and Fusion Research
c Federal State Unitary Enterprise (FSUE) "National Research Institute for Physicotechnical and Radio Engineering Measurements", Mendeleevo, Moscow region
d Institute for Theoretical and Experimental Physics (Russian Federation State Scientific Center), Moscow
Abstract:
It was established experimentally that the number and energy of fast ions in laser plasma increased with increasing angle of focusing laser radiation onto a flat target. Numerical calculations showed that the increase in angle of focusing brought the mean angle of incidence of laser radiation closer to the optimal angle corresponding to the maximal efficiency of the resonance absorption mechanism and, as a result, increased the fraction of absorbed laser energy in the energy of fast electrons and increased the number of fast electrons. In turn, the increase in the energy and number of fast electrons resulted in an increase in the number of fast electrons involved in the formation of a self-consistent electric field at the target edge and led to the growth of the field strength, which, eventually, was the reason for the increase in the number and energy of fast ions.
Received: 16.05.2001
Citation:
S. Yu. Gus'kov, N. N. Demchenko, K. N. Makarov, S. G. Nishchuk, T. A. Pikuz, Yu. A. Satov, I. Yu. Skobelev, Yu. B. Smakovskii, A. Ya. Faenov, S. V. Khomenko, B. Yu. Sharkov, “Influence of angles of incidence of laser radiation on the generation of fast ions”, Pis'ma v Zh. Èksper. Teoret. Fiz., 73:12 (2001), 740–745; JETP Letters, 73:12 (2001), 655–660
Linking options:
https://www.mathnet.ru/eng/jetpl4429 https://www.mathnet.ru/eng/jetpl/v73/i12/p740
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