- Access by Xinjiang University
Fast ion acceleration in ultraintense laser interactions with an overdense plasma
Phys. Rev. E 69, 036407 – Published 24 March, 2004
DOI: https://doi.org/10.1103/PhysRevE.69.036407
Abstract
In order to study the ion acceleration processes in ultraintense laser-plasma interactions with solid targets, neutron spectra from deuteron-deuteron (D-D) nuclear reactions were measured. Spectra were obtained when (50–100 TW, 0.5–1 ps) laser light irradiated obliquely incident deuterated plastic targets as a function of laser polarization, intensity, and density scale length of the preformed plasma. The experimental data are compared with three-dimensional Monte Carlo simulations. The results indicate that the ion momentum distribution is collimated and directed into the bulk of the target to the target normal direction with an energy that is linearly proportional to the laser intensity. The distribution of the accelerated ions was observed to change from isotropic to anisotropic with laser prepulse intensity. All the results indicate that the ion acceleration is dominated by an electrostatic field generated from a charge displacement of the hot electrons at the target surface.
References (34)
- M. Tabak, J. Hammer, M.E. Glinsky, W.L. Kruer, and S.C. Wilks, Phys. Plasmas 1, 1626 (1994).
- K.W.D. Ledingham et al., Phys. Rev. Lett. 84, 899 (2000).
- D.R. Farley et al., Phys. Rev. Lett. 83, 1982 (1999).
- A.P. Fews, P.A. Norreys, F.N. Beg, A.R. Bell, A.E. Dangor, C.N. Danson, P. Lee, and S.J. Rose, Phys. Rev. Lett. 73, 1801 (1994).
- A. Maksimchuk, S. Gu, K. Flippo, D. Umstadter, and V.Yu. Bychenkov, Phys. Rev. Lett. 84, 4108 (2000).
- K. Krushelnick et al., Phys. Plasmas 7, 2055 (2000); E.L. Clark et al., Phys. Rev. Lett. 85, 1654 (2000).
- K. Krushelnick et al., Phys. Rev. Lett. 83, 737 (1999).
- T. Ditmire, J. Zweiback, V.P. Yanovsky, T.E. Cowan, G. Hays, and K.B. Wharton, Nature (London) 398, 489 (1999).
- S.P. Hatchett et al., Phys. Plasmas 7, 2076 (2000); R.A. Snavely et al., Phys. Rev. Lett. 85, 2945 (2000).
- A.J. Mackinnon et al., Phys. Rev. Lett. 88, 215006 (2002).
- N. Izumi et al., Phys. Rev. E 65, 036413 (2002).
- E.G. Gamaly, Phys. Fluids 5, 3765 (1993).
- J. Denavit, Phys. Rev. Lett. 69, 3052 (1992).
- P.A. Norreys et al., Plasma Phys. Controlled Fusion 40, 175 (1998).
- G. Pretzler et al., Phys. Rev. E 58, 1165 (1998).
- L. Disdier et al., Phys. Rev. Lett. 82, 1454 (1999).
- H. Habara et al., Proc. SPIE 3886, 513 (2000); , Phys. Plasmas 10, 3712 (2003).
- Y. Kitagawa et al., Fusion Eng. Des. 44, 261 (1999).
- Y. Kato et al., Plasma Phys. Controlled Fusion 39, A145 (1997).
- N. Izumi et al., Rev. Sci. Instrum. 70, 1221 (1999).
- K. Nitta et al., Phys. Rev. C 52, 2620 (1995).
- J. D. Jackson, Classical Electrodynamics, 3rd ed. (Wiley, New York, 1998), Chap. 13.
- J. F. Ziegler, J. P. Biersack, and U. Littmark, The Stopping and Range of Ions in Solids (Pergamon Press, New York, 1985).
- H. H. Andersen and J. F. Ziegler, Hydrogen Stopping Powers and Ranges in All Elements (Pergamon Press, New York, 1977).
- R. Golser and D. Semrad, Phys. Rev. Lett. 66, 1831 (1991); Nucl. Instrum. Methods Phys. Res. B 69, 18 (1992).
- F. Raiola et al., Eur. Phys. J. A 10, 487 (2001).
- H. Daniel et al., Phys. Lett. A 191, 155 (1994).
- R. J. Howerton et al., Index to the LLNL Evaluated Charged-Particle Library, Vol. 28 (OECD Nuclear Energy Agency, Moulineaux, France, 1986).
- Experimental Nuclear Reaction Data File, Nuclear Data Center, IAEA. http://www-nds.iaea.or.at/exfor/
- S.C. Wilks et al., Phys. Rev. Lett. 69, 1383 (1992); W.L. Kruer and K. Estabrook, Phys. Fluids 28, 430 (1985).
- H. Takabe et al., Phys. Fluids 31, 2884 (1988).
- M. Lezius, S. Dobosz, D. Normand, and M. Schmidt, Phys. Fluids 80, 261 (1998).
- F. Brunel, Phys. Rev. Lett. 59, 52 (1987).
- G. Grillon et al., Phys. Rev. Lett. 89, 065005 (2002).