[Table of Contents]

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)
1)
National Institute for Fusion Science, 322-6 Oroshicho, Toki 509-5292, Japan
2)
Tokai University, 9-1-1 Toroku, Higashi-ku, Kumamoto 862-8652, Japan
3)
Kyushu University, 833 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
(Received 15 November 2014 / Accepted 1 April 2015 / Published 26 May 2015)

Abstract

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.


Keywords

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

DOI: 10.1585/pfr.10.3405054


References

  • [1] O. Mitarai “A D-3He spherical tokamak reactor with the plasma current ramp-up by vertical field” in Nuclear Reactors, Nuclear Fusion and Fusion Engineering (Nova Science Publishers, Inc., 2009), Edited by A. Aasen and P. Olsson.
  • [2] O. Mitarai et al., Plasma Fusion Res. 2, 021 (2007).
  • [3] O. Mitarai et al., Plasma Fusion Res. 5, S1001 (2010).
  • [4] J. Mandrekas et al., Fusion Technol. 19, 57 (1991).
  • [5] T. Watanabe et al., Plasma Fusion Res. 9, 3403089 (2014).
  • [6] T. Watanabe et al., J. Plasma Fusion Res. 74, 850 (1998) [in Japanese].
  • [7] H. Hojo, “Theoretical Study on Proton-Boron Fusion Reactor with LHD-Type Magnetic Field Configuration”, https://kaken.nii.ac.jp/d/p/15540480/2004/3/ja.ja.html (2004).
  • [8] Yoshinuma et al., Nucl. Fusion 49, 062002 (2009).

This paper may be cited as follows:

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