Abstract

To compute controlled fusion problems, four nuclear reactions are conventionally used. In the paper, cross sections of many thermonuclear reactions between the lightest elements are compared. We show that, along with the traditional four reactions, a tangible contribution can be made by the reaction \({\text{T}} + {\text{T}} \to 2n + \,{}^{{\text{4}}}{\text{He}}\). At low temperatures, the reactions \({\text{D}} + p \to \gamma + {}^{3}{\text{He}}\) and \({\text{T}} + p \to \gamma + {}^{4}{\text{He}}\) make a considerable contribution and it appears that the rest of the reactions can be neglected. For the outlined reactions, we perform a more thorough processing of the experimental data and construct high-order accurate approximations. The accuracy of finding the S-factor is 2–6% and that of the reaction rate is 3–4% for the new reactions.

中文翻译：

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对融合目标重要的反应速率

摘要

为了计算受控聚变问题，通常使用四个核反应。在本文中，比较了最轻元素之间许多热核反应的横截面。我们证明，与传统的四个反应一起，对2n + \，{} ^ {{\ text}的反应\（{\ text {T}} + {\ text {T}} \ {4}}} {\ text {He}} \）。在低温下，对\ gamma + {} ^ {3} {\ text {He}} \}的反应\（{\ text {D}} + p \和\（{\ text {T}} + p到\ gamma + {} ^ {4} {\ text {He}} \}做出了很大的贡献，其余的反应似乎可以忽略不计。对于概述的反应，我们对实验数据进行了更彻底的处理，并构建了高阶精确近似值。对于新反应，找到S因子的准确性为2–6％，反应速率的准确性为3-4％。