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Experiments on a Gas Gun for Target Injection in Inertial Fusion Energy

Soichiro SAKAE, Hiroyuki HAYASHI, Tomoaki KITABATAKE, Takuya MATSUMURA, Takuma ENDO and Takayoshi NORIMATSU¹⁾

Department of Mechanical Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan

1)

Institute of Laser Engineering, Osaka University, Suita 565-0871, Japan

(Received 30 November 2008 / Accepted 30 April 2009 / Published 9 September 2009)

Abstract

Projectile-shooting experiments using a simple gas gun were carried out to address issues in target injection technology for fast-ignition-type inertial fusion energy. The gas gun consisted of a high-pressure gas reservoir, quick solenoid valve, and smooth-bore acceleration tube. Simple cylindrical projectiles were accelerated at room temperature by nitrogen gas and shot into a diagnostic chamber. In these experiments, we measured the flight speed, direction, and attitude of projectiles of different lengths. Longer projectiles showed better flight performance.

Copyright (c) 2009 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

inertial fusion energy, target injection, gas gun, smooth bore, cylindrical projectile

DOI: 10.1585/pfr.4.S1006

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References

• [1] T. Norimatsu et al., J. Phys. IV 133, 841 (2006).
• [2] D.T. Goodin et al., Nucl. Fusion 41, 527 (2001).
• [3] D.T. Goodin et al., Fusion Eng. Des. 60, 27 (2002).
• [4] A.S. Bozek et al., Fusion Eng. Des. 82, 2171 (2007).
• [5] M. Zlokarnik, Dimensional Analysis and Scale-up in Chemical Engineering (Springer-Verlag, Berlin, 1991).

This paper should be cited as follows:

Soichiro SAKAE, Hiroyuki HAYASHI, Tomoaki KITABATAKE, Takuya MATSUMURA, Takuma ENDO and Takayoshi NORIMATSU, Plasma Fusion Res. 4, S1006 (2009).