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Development of laser-plasma generator for injector of C4+ ions

Published online by Cambridge University Press:  19 January 2012

N.N. Alekseev ,
A.N. Balabaev ,
A.A. Vasilyev ,
Yu.A. Satov ,
S.M. Savin ,
B.Yu. Sharkov ,
A.V. Shumshurov  and
V.C. Roerich
N.N. Alekseev
Affiliation:
State Scientific Center of the Russian Federation, Institute for Theoretical and Experimental Physics, Moscow, Russia
A.N. Balabaev
Affiliation:
State Scientific Center of the Russian Federation, Institute for Theoretical and Experimental Physics, Moscow, Russia
A.A. Vasilyev
Affiliation:
State Scientific Center of the Russian Federation, Institute for Theoretical and Experimental Physics, Moscow, Russia
Yu.A. Satov*
Affiliation:
State Scientific Center of the Russian Federation, Institute for Theoretical and Experimental Physics, Moscow, Russia
S.M. Savin
Affiliation:
State Scientific Center of the Russian Federation, Institute for Theoretical and Experimental Physics, Moscow, Russia
B.Yu. Sharkov
Affiliation:
State Scientific Center of the Russian Federation, Institute for Theoretical and Experimental Physics, Moscow, Russia
A.V. Shumshurov
Affiliation:
State Scientific Center of the Russian Federation, Institute for Theoretical and Experimental Physics, Moscow, Russia
V.C. Roerich
Affiliation:
State Scientific Center of the Russian Federation, Institute for Theoretical and Experimental Physics, Moscow, Russia
*
Address correspondence and reprint requests to: Yu. A. Satov, State Scientific Center of the Russian Federation, Institute for Theoretical and Experimental Physics, Moscow, Russia. E-mail: yuri.satov@itep.ru
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Abstract

The results of the development of the ITEP accelerator carbon ion injector based on a repetition-rate CO2 laser ion source are described. The improvement includes a modified pulsed HV-feeding generator for the discharge formation in the laser gas mixture. The advanced discharge module ensures essential increase of the laser active volume and specific electrical deposition energy. The comparative computer simulations of the discharge characteristics for the improved and the prototype lasers are applied. The design and the output spatial-temporal parameters of the free-running laser “Malish-M” are shown, so the significant increase of the laser power is reached. The spatial characteristics of the laser beam obtained with diffraction calculations are compared to measured radial distribution of the energy density. The target laser intensity and the different channels of the energy loss of the laser beam in the optical scheme are estimated. Finally, the output C4+ current trace of heavy ion injector as well as the injector scheme are shown.

Keywords

Free-running laserHeavy ion injectorLaser-plasma generatorVolume discharge stabilization
Type
Research Article
Information
Laser and Particle Beams , Volume 30 , Issue 1 , March 2012 , pp. 65 - 73
Copyright
Copyright © Cambridge University Press 2012

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References

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