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Recent results on implosions directly driven at λ = 0·26-μm laser wavelength

Published online by Cambridge University Press:  09 March 2009

M. Koenig ,
V. Malka ,
E. Fabre ,
P. Hammerling ,
A. Michard ,
J. M. Boudenne ,
D. Batani ,
J. P. Garçonnet  and
P. Fews
M. Koenig
Affiliation:
LULI, Ecole Polytechnique, 91128 Palaiseau, France
V. Malka
Affiliation:
LULI, Ecole Polytechnique, 91128 Palaiseau, France
E. Fabre
Affiliation:
LULI, Ecole Polytechnique, 91128 Palaiseau, France
P. Hammerling
Affiliation:
LULI, Ecole Polytechnique, 91128 Palaiseau, France
A. Michard
Affiliation:
LULI, Ecole Polytechnique, 91128 Palaiseau, France
J. M. Boudenne
Affiliation:
LULI, Ecole Polytechnique, 91128 Palaiseau, France
D. Batani
Affiliation:
Universita di Milano Dipartement di Fisica, Via Celoria 16, 20133 Milano, Italy
J. P. Garçonnet
Affiliation:
C.E.L.V., 94450 Villeneuve Saint-Georges, Cedex, France
P. Fews
Affiliation:
University of Bristol, Bristol, UK
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Abstract

New diagnostics were implemented on the implosion experiments performed at LULI to improve our measurements of hydroefficiencies: Neutron chronometry gives the time of emission of the fusion reaction products as measured from the peak of the laser pulse; thereby making it possible to correlate the neutron emission with X-ray emission. Core imaging, based upon a maximum entropy reconstruction technique, leads to core size determination and also is a promising diagnostic for wall nonuniformities induced by irradiation conditions. A simple model is developed to retrieve experimental spectra of α-particles.

Type
Research Article
Information
Laser and Particle Beams , Volume 10 , Issue 4 , December 1992 , pp. 573 - 583
Copyright
Copyright © Cambridge University Press 1992

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References

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