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Studies of D-D fusion reactivity in high temperature JET plasmas

J.M. Adams, B. Balet, D.A. Boyd, D.J. Campbell, C.D. Challis, J.P. Christiansen, J.G. Cordey, W.G.F. Core, A.E. Costley, G.A. Cottrell1991年被引用 16Nuclear FusionIF 3出版社

The D-D fusion reactivity from JET plasmas has been optimized by using combined neutral beam injection and radiofrequency heating. Reaction rates of up to 2.9 × 1016 reactions per second (equivalent to neutron emission rates of 1.45 × 10l6 neutrons per second) have been achieved. The best results were obtained in the doublenull magnetic configuration or with plasmas limited by the inner wall. By far the largest fraction of the neutron production originates from beam induced reactions, although, in some cases, about 25% of the production can be attributed to the acceleration of deuterium ions by the radiofrequency. The instantaneous neutron yield was limited by a strong influx of carbon impurity ions due to excessive, but local, wall heating.

日本語訳

JETプラズマからのD-D核融合反応率は、中性粒子ビーム入射と高周波加熱の併用により最適化されてきた。毎秒2.9×10^16反応(毎秒1.45×10^16中性子に相当する中性子放出率)までの反応率が達成されている。最良の結果は、ダブルヌル磁気配位または内壁によって制限されたプラズマにおいて得られた。中性子生成の大部分はビーム誘起反応に由来するが、場合によっては、生成量の約25%が高周波による重水素イオンの加速に帰属できる。瞬時中性子収量は、過度ではあるが局所的な壁加熱による炭素不純物イオンの強い流入によって制限された。

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