ASCOT simulations of 14 MeV neutron rates in W7-X: effect of magnetic configuration
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2021-03
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Language
en
Pages
9
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Plasma Physics and Controlled Fusion, Volume 63, issue 3
Abstract
Neutron production rates in fusion devices are determined not only by the kinetic profiles but also the fast ion slowing-down distributions. In this work, we investigate the effect of magnetic configuration on neutron production rates in future deuterium plasmas in the Wendelstein 7-X stellarator. The neutral beam injection, beam and triton slowing-down distributions, and the fusion reactivity are simulated with the ASCOT suite of codes. The results indicate that the magnetic configuration has only a small effect on the production of 2.45 MeV neutrons from thermonuclear and beam-target fusion. The 14.1 MeV neutron production rates were found to be between 1.49x10(12) and 1.67x10(12) s(-1), which is estimated to be sufficient for a time-resolved detection using a scintillating fiber detector, although only in high-performance discharges.Description
| openaire: EC/H2020/633053/EU//EUROfusion
Keywords
W7-X, fast ion physics, triton burn-up, deuterium plasmas, neutron diagnostics, ASCOT
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Citation
Kontula, J, Akaslompolo, S, Kurki-Suonio, T & W7-X Team 2021, ' ASCOT simulations of 14 MeV neutron rates in W7-X : effect of magnetic configuration ', Plasma Physics and Controlled Fusion, vol. 63, no. 3, 035022 . https://doi.org/10.1088/1361-6587/abd981
