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Reactivities of the reactions important for controlled fusion targets
Matematičeskoe modelirovanie, Tome 31 (2019) no. 9, pp. 39-53 Cet article a éte moissonné depuis la source Math-Net.Ru

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For simulations of controlled fusion problems, 4 major reactions are conventionally ac-counted for. In the present work, we compare cross sections of many thermonuclear reac-tions between lightest elements. We show that along with the traditional reactions, con-siderable contribution can be given by the reaction $\mathrm{T+T}\to2n+{}^4\mathrm{He}$. At low temperatures, two reactions $\mathrm{D}+p\to \gamma+{}^3\mathrm{He}$ and $\mathrm{T}+p\to \gamma+{}^4\mathrm{He}$ also have considerable contribution, the rest reactions are likely to be neglected. For the outlined reactions, we perform a more thorough processing of experimental data and construct high-precision approximations. For the new reactions, the accuracy of the $\mathrm{S}$-factor is $2$–$6\%$ and that of the reactivities is $3$–$4\%$.
Keywords: thermonuclear reactions, cross sections, reactivities, approximations. 
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A. A. Belov; N. N. Kalitkin; O. I. Topor; I. A. Fedorov. Reactivities of the reactions important for controlled fusion targets. Matematičeskoe modelirovanie, Tome 31 (2019) no. 9, pp. 39-53. http://geodesic.mathdoc.fr/item/MM_2019_31_9_a2/

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