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Renovation of the IPM-2 source ion-optical system for the Globus-M2 spherical tokamak neutral beam injector
Russian version
DOI: 10.21883/TP.2022.04.53600.292-21
Telnova A. Yu.1, Minaev V.B.1, Panasenkov A.A.2, Shchegolev P.B.1
1Ioffe Institute, St. Petersburg, Russia
2National Research Center “Kurchatov Institute”, Moscow, Russia
Email: anna.telnova@mail.ioffe.ru
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The paper is devoted to the IPM-2 ion source ion-optical system preparation for the plasma heating experiments with a neutral beam in the Globus-M2 spherical tokamak. Within the framework of this work, a complete renovation of the ion-optical system of the ion source was carried out, including its assembly, adjustment, and testing. To assess the quality of the work performed, measurements were made of the main electrical parameters of the high-energy beam, its energy spectrum and signals from secondary emission probes. Based on the data obtained, the beam power distribution profile and its characteristic dimensions are reconstructed, and the relative concentrations of the energy components of the beam are calculated. Keywords: nuclear fusion, neutral beam injection, neutral beam injector, ion source.
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