Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-26T06:39:59.259Z Has data issue: false hasContentIssue false
  • English
  • Français

Two-dimensional focusing of self-magnetically insulated “Plasma Focus Diode”

Published online by Cambridge University Press:  09 March 2009

Katsumi Masugata ,
Hironobu Isobe ,
Keigo Aga ,
Masami Matsumoto ,
Shigeo Kawata ,
Weihua Jiang  and
Kiyoshi Yatsui
Katsumi Masugata
Affiliation:
Laboratory of Beam Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-21, Japan
Hironobu Isobe
Affiliation:
Laboratory of Beam Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-21, Japan
Keigo Aga
Affiliation:
Laboratory of Beam Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-21, Japan
Masami Matsumoto
Affiliation:
Laboratory of Beam Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-21, Japan
Shigeo Kawata
Affiliation:
Laboratory of Beam Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-21, Japan
Weihua Jiang
Affiliation:
Laboratory of Beam Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-21, Japan
Kiyoshi Yatsui
Affiliation:
Laboratory of Beam Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-21, Japan
Get access Rights & Permissions [Opens in a new window]

Abstract

A new and simple type of self-magnetically insulated, vacuum ion diode named “Plasma Focus Diode” has been successfully developed with a large solid angle of irradiation and low divergence angle. The diode has a pair of coaxial cylindrical electrodes similar to a Mather-type plasma focus device. Ion-current density of 1·9 kA/cm2 has been obtained on the anode surface under the experimental conditions of diode voltage ∼1·4 MV, diode current ∼180 kA, and pulse width ∼75 ns. The generated ion beam has been two-dimensionally focused (line focusing) with a focusing radius of ∼0·18 mm, giving a maximum ion current density and beam power density at the axis of ∼0·14 MA/cm2 and ∼0·18 TW/cm2, respectively. The motion of electrons in the gap has been numerically simulated by use of a newly developed particle-in-cell computer simulation code, and good agreement has been obtained between the simulation and the experiment.

Type
Research Article
Information
Laser and Particle Beams , Volume 7 , Issue 2 , May 1989 , pp. 287 - 303
Copyright
Copyright © Cambridge University Press 1989

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Aga, K. 1987 Master Thesis, Nagaoka Univ. of Technology.Google Scholar
Blaugrund, A. E. et al. 1982 J. Appl. Phys. 53, 7280.CrossRefGoogle Scholar
Di Capua, M. S. 1983 IEEE Trans, on Plasma Science PS-11, 205.Google Scholar
Dreike, P. L. et al. 1986 J. Appl. Phys. 60, 878.CrossRefGoogle Scholar
Humphries, S. Jr 1980 Nucl. Fusion 20, 1549.Google Scholar
Johnson, D. J. et al. 1985 J. Appl. Phys. 54, 2230.Google Scholar
Kawata, S. et al. 1986 Kernforschungszentrum Karlsruhe Primarbericht, 14.04.01P44A.Google Scholar
Masugata, K. et al. 1984 Bull. Amer. Phys. Soc. 29, 1292.Google Scholar
Masugata, K. et al. 1988 Proc. 7th Int'l Conf.High-Power Particle Beams,Karlsruhe, West Germany, I, 105.Google Scholar
Mohri, A. et al. 1983 Jpn. J. Appl. Phys. 22, 1582.CrossRefGoogle Scholar
Nation, J. A. 1979 Particle Accelerators 10, 1.Google Scholar
Sai, E. et al. 1985 Proc. Collab. Res. Meeting on Development and Applications of High-Power Particle Beams,Nagoya,1984, ed. K. Yatsui, IPPJ-742 (Inst. Plasma Phys., Nagoya Univ.), 69.Google Scholar
Shimotori, Y. et al. 1986 Proc. 6th Int'l Conf. on High-Power Particle Beamsm,Kobe,1986, ed. C. Yamanaka (Inst. Laser Eng., Osaka Univ.), 97.Google Scholar
Tokuchi, A. et al. 1986 Proc. 2nd Int'l Symp. ICF Res. by High-Power Particle Beams,Nagaoka,1986, ed. K. Yatsui (Nagaoka Univ. of Tech.), 430.Google Scholar
van Devender, J. P. et al. 1985 Laser and Particle Beams 3, 93.CrossRefGoogle Scholar
Yatsui, K. et al. 1982 Phys. Rev. A26, 3044.Google Scholar
Yatsui, K. et al. 1985 Laser and Particle Beams 3, 119.CrossRefGoogle Scholar
Yatsui, K. et al. 1986 Proc. 11th Int'l Conf. on Plasma Phys. and Control. Nucl. Fusion Res.,Kyoto, IAEA-CN-47/B-III-9.Google Scholar
Yatsui, K. et al. 1987a Laser and Particle Beams 5, 415.CrossRefGoogle Scholar
Yatsui, K. et al. 1987b Proc. 8th Int'l Workshop on Laser Interaction and Related Plasma Phenomena,Monterey, USA.Google Scholar
Yatsui, K. et al. 1988 Proc. 12th Int'l Conf. on Plasma Phys. and Control.Nucl. Fusion Res., Nice, IAEA-CN-50/B-4–2.Google Scholar
Yoshikawa, T. et al. 1984 J. Appl. Phys. 54, 2230.Google Scholar