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Magnetic focusing of emitted ions from laser-generated plasma: enhancement of yield and energy

Published online by Cambridge University Press:  20 February 2017

L. Torrisi  and
G. Costa
L. Torrisi*
Affiliation:
Dottorato di Ricerca in Fisica, Dip.to di Scienze Fisiche-MIFT, Università di Messina, V.le F.S. D'Alcontres 31, 98166 S. Agata (ME), Italy
G. Costa
Affiliation:
Dottorato di Ricerca in Fisica, Dip.to di Scienze Fisiche-MIFT, Università di Messina, V.le F.S. D'Alcontres 31, 98166 S. Agata (ME), Italy
*
*Address correspondence and reprint requests to: L. Torrisi, Dottorato di Ricerca in Fisica, Dip.to di Scienze Fisiche-MIFT, Università di Messina, V.le F.S. D'Alcontres 31, 98166 S. Agata (ME), Italy. E-mail: Lorenzo.Torrisi@unime.it
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Abstract

A ns Nd:Yag laser, at intensity of 1010 W/cm2 is employed to generate carbon and aluminum non-equilibrium plasmas at a temperature of about 33 eV accelerating ions at energies of the order of 130 eV per charge state. The ion emission occurs manly along the normal to the target surface and can be detected using ion collectors employed in time-of-flight configuration. The application of magnetic field along the axe of the ion emission permits to focalize the ion emission enhancing the detected ion current. The formation of electron traps, due to the magnetic force lines, drives the ion acceleration improving their kinetic energy. Different applications can make use of these results to increase the flow of charged particles and their energy employing appropriate static magnetic fields, as it will be presented and discussed.

Keywords

Magnetic focalizationLaser-generated plasmaIon accelerationTOFIon collectorElectron traps
Type
Research Article
Information
Laser and Particle Beams , Volume 35 , Issue 2 , June 2017 , pp. 202 - 209
Copyright
Copyright © Cambridge University Press 2017 

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References

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