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Basic Characteristics of Secondary Electron Emission from Foil Electrodes for New Energy Recovery Scheme of High Energy Ions in an Advanced Fusion

D. Akashi, Y. Takeshita, S. Nakamoto, H. Takeno, Y. Yasaka, Y. Furuyama, A. Taniike

Fusion Science and Technology / Volume 63 / Number 1T / May 2013 / Pages 301-303

The new energy recovery method using secondary electron emission has been studied in order to improve energy recovery from high energy protons of fusion products in D-3He nuclear fusion generation. The model experiments were performed by using the tandem electrostatic accelerator and the basic characteristics were investigated. According to our results, for penetration aluminum is better as a target material than copper, H+ is better than He2+, and higher energy beam is better which agree with numerical calculations. A qualitative characteristic of secondary electron emission dependence on beam energy was also obtained.

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