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Highly charged ions from Nd-laser produced plasma of medium and high-Z targets

Published online by Cambridge University Press:  01 October 1999

B. SHARKOV
Affiliation:
Institute of Theoretical and Experimental Physics, 117259 Moscow, Russia
A. SHUMSHUROV
Affiliation:
Institute of Theoretical and Experimental Physics, 117259 Moscow, Russia
I. ROUDSKOY
Affiliation:
Institute of Theoretical and Experimental Physics, 117259 Moscow, Russia
A. KILPIO
Affiliation:
General Physics Institute, 117942 Moscow, Russia
E. SHASHKOV
Affiliation:
General Physics Institute, 117942 Moscow, Russia
N. KISELEV
Affiliation:
Troitsk Institute for Innovation and Fusion Research, 142092 Troitsk, Russia
P. PASHININ
Affiliation:
General Physics Institute, 117942 Moscow, Russia

Abstract

The project ITEP-TWAC (Tera Watt Accumulator) being in progress at ITEP (Moscow) requires He-like ions for non-Liouvillean injection into the storage ring to accumulate ≈2·1013 particles with medium masses up to 59Co25+. Powerful lasers were found to be the best choice for those ions production. This work presents the experimental results of highly charge ion generation in plasmas produced by the second harmonic of Nd-glass laser facility with a total energy E ≤ 50 J and pulse duration of about 2.5 ns at GPI (Moscow). Ti and Ta targets were under investigation. An electrostatic ion energy analyzer and an ion charge collector were used to measure the ion charge state spectra at a 3-m distance from the targets. 5·107 He-like Ti ions per cm2 within 1 μs pulse as well as 107 Ta+41 per cm2 within 0.8 μs were observed.

Type
Research Article
Copyright
1999 Cambridge University Press

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