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Magnetic suspension of a pellet for inertial confinement fusion

Published online by Cambridge University Press:  09 March 2009

H. Yoshida ,
K. Katakami ,
Y. Sakagami ,
H. Azechi ,
H. Nakarai  and
S. Nakai
H. Yoshida
Affiliation:
Department of Electronics and Computer Engineering, Faculty of Engineering, Gifu University, Yanagido, Gifu 501–11, Japan
K. Katakami
Affiliation:
Department of Electronics and Computer Engineering, Faculty of Engineering, Gifu University, Yanagido, Gifu 501–11, Japan
Y. Sakagami
Affiliation:
Department of Electronics and Computer Engineering, Faculty of Engineering, Gifu University, Yanagido, Gifu 501–11, Japan
H. Azechi
Affiliation:
Institute of Laser Engineering, Osaka University, Yamadaoka, Suita, Osaka 565, Japan
H. Nakarai
Affiliation:
Institute of Laser Engineering, Osaka University, Yamadaoka, Suita, Osaka 565, Japan
S. Nakai
Affiliation:
Institute of Laser Engineering, Osaka University, Yamadaoka, Suita, Osaka 565, Japan
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Abstract

In inertial confinement fusion experiments, the symmetrical implosion calls for a new scheme: a nonsupported pellet. In this article, the first experiment is conducted using a plastic pellet covered with thin ferromagnetic material. In the system, the digital-phase-lead-compensator takes the position-related signal and processes it to provide a driving signal for the magnetic suspender. The suspended pellet is irradiated by the Gekko XII laser, having its total energy 2700 J with pulse width 800 ps at the wavelength 0.53 μm. The X-ray pinhole photograph confirms the spherically symmetrical implosion at the pellet core. At irradiation, the neutron yield is also observed.

Type
Research Article
Information
Laser and Particle Beams , Volume 11 , Issue 2 , June 1993 , pp. 455 - 459
Copyright
Copyright © Cambridge University Press 1993

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References

REFERENCES

Carmichael, A.T. et al. 1986 Rev. Sci. lnstrum. 57, 1611.CrossRefGoogle Scholar
Sakagami, Y. et al. 1991 Progress report of laser fusion related experiments at Gifu University. Research report at the Faculty of Engineering at Gifu University, Vol. 41, p. 47.Google Scholar