Neutral particle analyzer for plasma diagnostics on tokamak ST40
Sergey Polosatkin, Vasily Belykh, and Andrey Rovenskikh

TL;DR
This paper describes a neutral particle analyzer developed for plasma diagnostics on the ST40 tokamak, capable of measuring ion temperatures, energy distributions, and isotope separation to enhance plasma understanding.
Contribution
It introduces a novel neutral particle analyzer with isotope separation and energy measurement capabilities for spherical tokamak plasma diagnostics.
Findings
Successful measurement of ion temperature range 0.5-10 keV
Energy distribution analysis of fast ions up to 40 keV
Effective separation of hydrogen isotopes in plasma diagnostics
Abstract
The paper presents a detailed description of a neutral particle analyzer designed and produced for plasma diagnostics on the spherical tokamak ST40. The aim of the diagnostic is to measure both the bulk ion temperature in the range from 0.5 to 10 keV and the energy distribution of fast ions with energies up to 40 keV, which appear in the plasma through neutral beam injection. A feature of the analyzer is its ability to separate hydrogen isotopes (protium and deuterium) and measure the ion distribution function of the selected isotope.
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Taxonomy
TopicsMagnetic confinement fusion research
