Plasma and Fusion Research

Volume 11, 2405029 (2016)

Regular Articles

Variation in Emission and Energy Recovery Concerning Incident Angle in a Scheme Recovering High Energy Ions by Secondary Electrons
Takayuki WADA, Shota KONNO, Satoshi NAKAMOTO, Hiromasa TAKENO, Yuichi FURUYAMA1) and Akira TANIIKE1)
Electrical and Electronic Engineering, Kobe University, Kobe 657-8501, Japan
Graduate School of Maritime Sciences, Kobe University, Kobe 658-0022, Japan
(Received 29 November 2015 / Accepted 2 February 2016 / Published 17 March 2016)


As an energy recovery device for fast protons produced in D-3He nuclear fusion, secondary electron (SE) direct energy converter (SEDEC) was proposed in addition to traveling wave direct energy converter (TWDEC). Some protons passing through a TWDEC come into an SEDEC, where protons penetrate to a number of foil electrodes and emitted SEs are recovered. Following to a development of SE orbit control by magnetic field, dependence on incident angle of protons was examined to optimize structure of SEDEC. Based on a theoretical expectation, experiments were performed by changing incident angle of protons and variation in emission and energy recovery were measured. Both emission and energy recovery increased as the angle increased, and differences with theoretical expectation are discussed.


advanced fusion, direct energy conversion, secondary electron, SEDEC

DOI: 10.1585/pfr.11.2405029


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