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Energy transfer and expansion dynamics of a collisional laser plasma from planar, atomic and binary targets

S N Srivastava, B K Sinha, K Rohr
2005 Journal of Physics D: Applied Physics  
Charge resolved average integrated kinetic energy of ions from plasmas produced from, monoatomic targets of copper and tungsten as well as binary targets of copper and tungsten, with two different stoichiometric compositions, have been obtained using 130 mJ -5 ns Nd:YAG laser pulse, at a focal intensity of about 8 x 10 9 W/cm 2 . It is concluded that ionacceleration due to built-in electrostatic potential is not significant and the kinetic energy spectra are determined by the recombination
more » ... recombination during the plasma expansion. On the basis of the numerical results obtained from Monte-Carlo simulation, a significant energy-transfer from the lighter to the heavier ions seems reasonable in the case of binary targets.
doi:10.1088/0022-3727/38/19/013 fatcat:272ai2oxofgoze5sqefnbm2hvi