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Experimental studies of generation of ~100 MeV Au-ions from the laser-produced plasma

Published online by Cambridge University Press:  28 January 2009

L. Láska ,
J. Krása ,
A. Velyhan ,
K. Jungwirth ,
E. Krouský ,
D. Margarone ,
M. Pfeifer ,
K. Rohlena ,
L. Ryć  and
J. Skála
...Show all authors
L. Láska*
Affiliation:
Institute of Physics, ASCR, v.v.i., Prague, Czech Republic
J. Krása
Affiliation:
Institute of Physics, ASCR, v.v.i., Prague, Czech Republic
A. Velyhan
Affiliation:
Institute of Physics, ASCR, v.v.i., Prague, Czech Republic
K. Jungwirth
Affiliation:
Institute of Physics, ASCR, v.v.i., Prague, Czech Republic
E. Krouský
Affiliation:
Institute of Physics, ASCR, v.v.i., Prague, Czech Republic
D. Margarone
Affiliation:
Institute of Physics, ASCR, v.v.i., Prague, Czech Republic Dipartimento di Fisica, Universita di Messina, Messina, Italy
M. Pfeifer
Affiliation:
Institute of Physics, ASCR, v.v.i., Prague, Czech Republic
K. Rohlena
Affiliation:
Institute of Physics, ASCR, v.v.i., Prague, Czech Republic
L. Ryć
Affiliation:
Institute of Plasma Physics and Laser Microfusion, Warsaw, Poland
J. Skála
Affiliation:
Institute of Physics, ASCR, v.v.i., Prague, Czech Republic
L. Torrisi
Affiliation:
Dipartimento di Fisica, Universita di Messina, Messina, Italy INFN-Laboratori Nazionali del Sud, Catania, Italy
J. Ullschmied
Affiliation:
Institute of Plasma Physics, ASCR, v.v.i., Prague, Czech Republic
*
Address correspondence and reprint requests to: L. Láska, Institute of Physics, ASCR, v.v.i., Na Slovance 2, 182 21 Prague 8, Czech Republic. E-mail: laska@fzu.cz
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Abstract

Using the PALS iodine laser system, Au ions with the charge state up to 58+ and with the kinetic energy as high as ~300 MeV were generated. The production of these ions was tested in dependence on the laser frequency (1ω, 3ω), on the irradiation/detection angles (0°, 30°), on the focus position with regard to the target surface, and on the target thickness (500 µm, 200 µm, 80 µm). A larger amount of the fastest ions was produced with 1ω than with 3ω, the most of the fast ions were recorded in the direction ~10° from the target normal, the optimum focus position is in front of the target and should be set on with a precision of 50 µm. The forward emission is weaker than the backward one for both of the thinner targets (which burn through) at our experimental conditions.

Keywords

Backward and forward ion emissionHigh energy Au-ionsHighly charged Au-ionsLaser-produced plasma
Type
Research Article
Information
Laser and Particle Beams , Volume 27 , Issue 1 , March 2009 , pp. 137 - 147
Copyright
Copyright © Cambridge University Press 2009

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References

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