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Effects of different nuclear reactions on internal tritium breeding in deuterium fusion

S. Eliezer, Z. Henis, J.M. Martínez-Val, I. Vorobeichik2000年被引用 21Nuclear FusionIF 3出版社

A catalytic regime for tritium in deuterium-tritium (DTx) fusion is investigated, including ion-electron collisions, mechanical expansion, bremsstrahlung radiation and inverse Compton scattering losses. It is shown that the consideration of the three main nuclear reactions of the hydrogen isotopes (D(D,n)3He, D(D,p)T and T(D,n)4He) only leads to erroneous results for internal tritium breeding. Among the secondary reactions in DT fusion, the reaction 3He(D,p)4He is the most important in the tritium catalytic regime, due to its large contribution to the plasma heating. When all the nuclear reactions are taken into account, internal tritium breeding is found to be possible in a short range of parameters defining the target performance (tritium content parameter x, areal density and ignition temperature).

日本語訳

重水素-トリチウム(DTx)核融合におけるトリチウムの触媒的体制を、イオン-電子衝突、力学的膨張、制動放射放射および逆コンプトン散乱損失を含めて調査する。水素同位体の3つの主要な核反応(D(D,n)3He、D(D,p)TおよびT(D,n)4He)のみを考慮することは、内部トリチウム増殖に関して誤った結果をもたらすことが示される。DT核融合における二次反応のうち、3He(D,p)4He反応は、プラズマ加熱への大きな寄与により、トリチウム触媒的体制において最も重要である。すべての核反応を考慮すると、内部トリチウム増殖は、標的の性能を定義するパラメータ(トリチウム含有率パラメータx、面密度および点火温度)の狭い範囲内で可能であることが見出される。

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TritiumDeuteriumTritium breeding
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