Plasma and Fusion Research

Volume 10, 3405054 (2015)

Regular Articles

Possibility of Quasi-Steady-State Operation of Low-Temperature LHD-Type Deuterium-Deuterium (DD) Reactor Using Impurity Hole Phenomena – DD Reactor Controlled by Solid Boron Pellets –
Tsuguhiro WATANABE1), Osamu MITARAI2) and Hideaki MATSUURA3)
National Institute for Fusion Science, 322-6 Oroshicho, Toki 509-5292, Japan
Tokai University, 9-1-1 Toroku, Higashi-ku, Kumamoto 862-8652, Japan
Kyushu University, 833 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
(Received 15 November 2014 / Accepted 1 April 2015 / Published 26 May 2015)


The burn control of deuterium-boron fusion reactor (DB reactor), in which the deuterium is primary fuel and the boron is additional fuel is studied numerically. Though the fusion energy which boron generates through the p-11B reaction is only (1∼5)% of the whole, repetitive injection of solid boron pellets realizes stable burning of a low-temperature and high-density plasma. While the operating density is controlled by the deuterium fueling, a DB reactor can be operated in the thermally unstable regime by adjusting boron pellet injection based on the temperature measurements, from a low power to a high power output mode with reduced divertor heat flux.


advanced reactor, proton-boron reactor, catalyzed DD reactor, LHD

DOI: 10.1585/pfr.10.3405054


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This paper may be cited as follows:

Tsuguhiro WATANABE, Osamu MITARAI and Hideaki MATSUURA, Plasma Fusion Res. 10, 3405054 (2015).