Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
75 (1999), S. 2539-2541
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Changes in the ion population during the expansion of Ag, Cu, Pb, and Ta laser-produced plasmas in vacuum were simultaneously measured with two coaxial ion collectors between 82 and 187 cm from a target. The plasma was produced with an iodine laser delivering a power density up to ∼1015 W/cm2 onto the target. It was experimentally proved that the charge Q of expanding ions and the corresponding ion current density j are really decreasing with the distance L as Q∝L−2 and j∝L−3, respectively. It implies that the "freezing" of charge states dominates in that interval of L. © 1999 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.125070
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