Plasma and Fusion Research
Volume 10, 3405025 (2015)
Regular Articles
- Electrical and Electronic Engineering, Kobe University, Kobe 657-8501, Japan
- 1)
- Graduate School of Maritime Sciences, Kobe University, Kobe 658-0022, Japan
Abstract
A traveling wave direct energy converter (TWDEC) is expected to be used as an energy recovery device for fast protons produced during the D-3He nuclear fusion reaction. Some protons, however, are not fully decelerated and pass through the device. A secondary electron direct energy converter (SEDEC) was proposed as an additional device to recover the protons passing through a TWDEC. In our previous study, magnetic field was applied for efficient secondary electron (SE) collection, but the SEs were reflected close to the collector due to the magnetic mirror effect and the collection was degraded. Herein, a new arrangement of magnets is proposed to be set away from the collector, and experiments in various conditions are performed. An appropriate arrangement away from the collector resulted in the improvement of SE collection.
Keywords
advanced fusion, direct energy conversion, secondary electron, magnetic mirror
Full Text
References
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This paper may be cited as follows:
Shota HAGIHARA, Takayuki WADA, Satoshi NAKAMOTO, Hiromasa TAKENO, Yasuyoshi YASAKA, Yuichi FURUYAMA and Akira TANIIKE, Plasma Fusion Res. 10, 3405025 (2015).