Generation of High-Quality Charged Particle Beams
during the Acceleration of Ions by High-Power
Laser Radiation

S. V. Bulanov^{1, 2}, T. Zh. Esirkepov^{3, 4}, F. F. Kamenets³, Y. Kato², A. V. Kuznetsov³,
K. Nishihara⁴, F. Pegoraro⁵, T. Tajima², and V. S. Khoroshkov⁶

¹Institute of General Physics, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 117942 Russia

²Advanced Photon Research Center, Japan Atomic Energy Research Institute (JAERI-Kansai), 619-0215 Kizu, Kyoto, Japan

³Moscow Institute of Physics and Technology, Institutskii per. 9, Dolgoprudny, Moscow oblast, 141700 Russia

⁴Institute of Laser Engineering, Osaka University, 2-6 Yamada-Oka, Suita, Osaka, 565-0871 Japan

⁵Istituto Nazionale Fisica della Materia and Dip. Fisica, Università di Pisa, 56126 Pisa, Italy

⁶Institute of Theoretical and Experimental Physics, ul. Bol’shaya Cheremushkinskaya 25, Moscow, 117259 Russia

Received June 4, 2002

Abstract—Numerous applications of protons and ions accelerated by laser radiation require charged particle
beams of high quality (i.e., such that the ratio of the energy width of the beam to its mean energy is small). In
order to produce beams with controlled quality, it is proposed to use two-layer targets in which the first layer
consists of heavy multicharged ions and the second layer (thin and narrow in the transverse direction) consists
of protons. The possibility of generating a high-quality proton beam in the interaction of ultraintense laser radi-
ation with such a two-layer target is demonstrated by two- and three-dimensional particle-in-cell computer sim-
ulations. © 2002 MAIK “Nauka/Interperiodica”.

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