Plasma and Fusion Research

Volume 10, 3405013 (2015)

Regular Articles

Experimental Study on the Constant Deceleration Scheme in Traveling Wave Direct Energy Converter
Yusuke TOGO, Tomohiro KATSURA, Hiromasa TAKENO, Yasuyoshi YASAKA, Kazuya ICHIMURA1) and Yousuke NAKASHIMA1)
Department of Electrical and Electronic Engineering, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai-cho, Tsukuba 305-8572, Japan
(Received 25 November 2014 / Accepted 25 January 2015 / Published 19 March 2015)


Traveling Wave Direct Energy Converter (TWDEC) was proposed to apply to D-3He nuclear fusion power generation system, and is studied as an energy source of a spacecraft recently where miniaturization of the device is important. Not only the modulation process, but also the deceleration process are important to treat a trade-off between device size and efficiency. The suitable scheme of the constant deceleration, of which experimental investigation was insufficient, was studied. Based on the theory of the scheme, a decelerator for simulation experiments was assembled and deceleration experiments were performed. The efficiency of the highest record in simulation experiments and a fair agreement with the theory were obtained. The problem was also clarified that the improvement of the modulation process was necessary.


advanced fusion, direct energy conversion, TWDEC

DOI: 10.1585/pfr.10.3405013


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This paper may be cited as follows:

Yusuke TOGO, Tomohiro KATSURA, Hiromasa TAKENO, Yasuyoshi YASAKA, Kazuya ICHIMURA and Yousuke NAKASHIMA, Plasma Fusion Res. 10, 3405013 (2015).