scholarly journals Ion energy distributions from laser-generated plasmas at two different intensities

2018 ◽  
Vol 167 ◽  
pp. 02003
Author(s):  
Giovanni Ceccio ◽  
Lorenzo Torrisi ◽  
Masahiro Okamura ◽  
Takeshi Kanesue ◽  
Shunsuke Ikeda
Keyword(s):  
Laser Irradiation ◽  
National Laboratory ◽  
High Vacuum ◽  
Time Of Flight ◽  
Brookhaven National Laboratory ◽  
Energy Distributions ◽  
Ion Energy ◽  
Ion Energy Distributions ◽  
Flight Measurements ◽  
Non Equilibrium

Laser-generated non-equilibrium plasmas were analyzed at Brookhaven National Laboratory (NY, USA) and MIFT Messina University (Italy). Two laser intensities of 1012 W/cm2 and 109 W/cm2, have been employed to irradiate Al and Al with Au coating targets in high vacuum conditions. Ion energy distributions were obtained using electrostatic analyzers coupled with ion collectors. Time of flight measurements were performed by changing the laser irradiation conditions. The study was carried out to provide optimum keV ions injection into post acceleration systems. Possible applications will be presented.

Ion energy distributions in rf sheaths; review, analysis and simulation

1999 ◽  
Vol 8 (3) ◽  
pp. R45-R64 ◽  
Author(s):  
E Kawamura ◽  
V Vahedi ◽  
M A Lieberman ◽  
C K Birdsall
Keyword(s):  
Energy Distributions ◽  
Ion Energy ◽  
Review Analysis ◽  
Ion Energy Distributions

scholarly journals Investigations on low temperature laser-generated plasmas

2008 ◽  
Vol 26 (2) ◽  
pp. 265-271 ◽  
Author(s):  
F. Caridi ◽  
L. Torrisi ◽  
D. Margarone ◽  
A. Borrielli
Keyword(s):  
Target Surface ◽  
Ion Acceleration ◽  
Ion Temperature ◽  
Free Electron Density ◽  
Ion Energy ◽  
Equilibrium Plasma ◽  
Ablation Yield ◽  
Ion Energy Distributions ◽  
Acceleration Voltage ◽  
Non Equilibrium

AbstractA nanosecond pulsed Nd-Yag laser, operating at an intensity of about 109 W/cm2, was employed to irradiate different metallic solid targets (Al, Cu, Ta, W, and Au) in vacuum. The measured ablation yield increases with the direct current (dc) electrical conductivity of the irradiated target. The produced plasma was characterized in terms of thermal and Coulomb interaction evaluating the ion temperature and the ion acceleration voltage developed in the non-equilibrium plasma core. The particles emission produced along the normal to the target surface was investigated measuring the neutral and the ion energy distributions and fitting the experimental data with the “Coulomb-Boltzmann-shifted” function. Results indicate that the mean energy of the distributions and the equivalent ion acceleration voltage of the non-equilibrium plasma increase with the free electron density of the irradiated element.

scholarly journals Ponderomotive force and ion energy distributions in an rf sheath

1992 ◽  
Vol 68 (1) ◽  
pp. 44-47 ◽  
Author(s):  
S. Hamaguchi ◽  
R. T. Farouki ◽  
M. Dalvie
Keyword(s):  
Ponderomotive Force ◽  
Energy Distributions ◽  
Ion Energy ◽  
Ion Energy Distributions
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