Neutral beam injection system for the CAT experiment

Vladimir I. Davydenko; Petr P. Deichuli; Alexander A. Ivanov; Sergey V. Murakhtin

doi:10.1585/pfr.14.2402024

Neutral beam injection system for the CAT experiment

Vladimir I. Davydenko, Petr P. Deichuli, Alexander A. Ivanov, Sergey V. Murakhtin

Plasma Physics Section

Research output: Contribution to journal › Article › peer-review

Abstract

In the Budker Institute, the CAT (Compact Axisymmtric Toroid) experiment is being prepared for obtaining a plasmoid with high diamagnetism in axially symmetric magnetic field. Reverse of magnetic field in the plasmoid is also possible in this experiment. The experiment is based on injection of powerful focused neutral beams with extremely large neutral power density in the plasma. Two neutral beam injectors with the energy of hydrogen atoms of 15 keV will be used in the experiment. The neutral beam power of each injector is 2MW, pulse duration is 5ms. In the ion source of the injector, plasma emitter is produced by plasma jets from four arc plasma generators. Proton beam with current up to 170A is formed by multi-slit three-electrode ion-optical system with ballistic focusing. Measured angular divergence of the formed beam along the slits is 10 mrad, divergence in the direction across the slits is 35 mrad. The injector is equipped with a neutralizer, bending magnet, residual ion dump, calorimeter, high speed pumping system with titanium arc evaporation.

Original language	English
Article number	2402024
Number of pages	4
Journal	Plasma and Fusion Research
Volume	14
Issue number	Specialissue1
DOIs	https://doi.org/10.1585/pfr.14.2402024
Publication status	Published - 1 Jan 2019

Keywords

Axisymmetric magnetic trap
Ion source
Neutral beam injector
PLASMA
ion source
CELL
neutral beam injector
axisymmetric magnetic trap

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10.1585/pfr.14.2402024

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title = "Neutral beam injection system for the CAT experiment",

abstract = "In the Budker Institute, the CAT (Compact Axisymmtric Toroid) experiment is being prepared for obtaining a plasmoid with high diamagnetism in axially symmetric magnetic field. Reverse of magnetic field in the plasmoid is also possible in this experiment. The experiment is based on injection of powerful focused neutral beams with extremely large neutral power density in the plasma. Two neutral beam injectors with the energy of hydrogen atoms of 15 keV will be used in the experiment. The neutral beam power of each injector is 2MW, pulse duration is 5ms. In the ion source of the injector, plasma emitter is produced by plasma jets from four arc plasma generators. Proton beam with current up to 170A is formed by multi-slit three-electrode ion-optical system with ballistic focusing. Measured angular divergence of the formed beam along the slits is 10 mrad, divergence in the direction across the slits is 35 mrad. The injector is equipped with a neutralizer, bending magnet, residual ion dump, calorimeter, high speed pumping system with titanium arc evaporation.",

keywords = "Axisymmetric magnetic trap, Ion source, Neutral beam injector, PLASMA, ion source, CELL, neutral beam injector, axisymmetric magnetic trap",

author = "Davydenko, {Vladimir I.} and Deichuli, {Petr P.} and Ivanov, {Alexander A.} and Murakhtin, {Sergey V.}",

year = "2019",

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doi = "10.1585/pfr.14.2402024",

language = "English",

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AU - Davydenko, Vladimir I.

AU - Deichuli, Petr P.

AU - Ivanov, Alexander A.

AU - Murakhtin, Sergey V.

PY - 2019/1/1

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AB - In the Budker Institute, the CAT (Compact Axisymmtric Toroid) experiment is being prepared for obtaining a plasmoid with high diamagnetism in axially symmetric magnetic field. Reverse of magnetic field in the plasmoid is also possible in this experiment. The experiment is based on injection of powerful focused neutral beams with extremely large neutral power density in the plasma. Two neutral beam injectors with the energy of hydrogen atoms of 15 keV will be used in the experiment. The neutral beam power of each injector is 2MW, pulse duration is 5ms. In the ion source of the injector, plasma emitter is produced by plasma jets from four arc plasma generators. Proton beam with current up to 170A is formed by multi-slit three-electrode ion-optical system with ballistic focusing. Measured angular divergence of the formed beam along the slits is 10 mrad, divergence in the direction across the slits is 35 mrad. The injector is equipped with a neutralizer, bending magnet, residual ion dump, calorimeter, high speed pumping system with titanium arc evaporation.

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KW - Ion source

KW - Neutral beam injector

KW - PLASMA

KW - ion source

KW - CELL

KW - neutral beam injector

KW - axisymmetric magnetic trap

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