Open AccessРасчет нейтронного выхода токамака Глобус-М2 с учетом анизотропии по скоростям функции распределения ионов при нейтральной инжекции атомов высокой энергии
Author(s) -
О.М. Скрекель,
Н.Н. Бахарев,
В.К. Гусев,
Е.О. Киселев
Publication year - 2021
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2021.04.50640.18548
Subject(s) - legendre polynomials , tokamak , deuterium , neutron , dimension (graph theory) , distribution function , yield (engineering) , distribution (mathematics) , computational physics , physics , function (biology) , neutron flux , anisotropy , nuclear physics , mathematical analysis , mathematics , plasma , optics , quantum mechanics , thermodynamics , pure mathematics , evolutionary biology , biology
The paper considers two algorithms for calculating the neutron yield of the Globus-M2 tokamak for the case of anisotropic ion distribution functions. Such calculations are necessary to estimate the flux of neutrons produced as a result of the interaction between fast particles (deuterons) arising from the neutral beam injection. The first algorithm is the calculation of a six-dimensional integral in the velocity space, and the second uses the expansion of the ion distribution function in terms of Legendre polynomials, which allows one to reduce the dimension of integration. The advantages and disadvantages of each of the algorithms are discussed and the results obtained using them are compared.