Possibilities of alpha-particle diagnostics in future tokamaks using helium and lithium beam injection

Journal Article · Fri Mar 01 04:00:00 EST 1991 · Fusion Technology; (United States)

OSTI ID:5003326

Gorelenkov, N N; Krasilnikov, A V ^[1]

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1. I.V. Kurchatov Inst. of Atomic Energy, Moscow (SU)

This paper considers the possibility of using active charge-exchange (CX) diagnostics based on helium and lithium beam injection to investigate the confined alpha-particle distribution function in future fusion experiments. The required helium beam densities are determined by mathematic modeling of the physical processes (double CX, attenuation of the doping beam, and CX flow, taking into account the step process). They are found to be {approximately}1 A for a 40-keV beam for thermalized (ash) alpha-particle diagnostics and 30 to 600 MA for a 0.35 to 0.65 MeV/amu HeH{sup +} ion source for hot alpha-particle diagnostics. A {sup 3}He beam with energy of 500 keV (He{sup +} ion source) and intensity of 0.1 to 3 A is proposed for measurement of the alpha-particle distribution function in the energy range of 0.2 to 2 MeV.

• OSTI ID: 5003326
• Journal Information: Fusion Technology; (United States), Journal Name: Fusion Technology; (United States) Vol. 19:2; ISSN 0748-1896; ISSN FUSTE
• Country of Publication: United States
• Language: English

Related Subjects

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Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
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74 ATOMIC AND MOLECULAR PHYSICS
ALPHA PARTICLES
CHARGE-EXCHANGE REACTIONS
CHARGED PARTICLES
DISTRIBUTION FUNCTIONS
ENERGY RANGE
FUNCTIONS
HELIUM IONS
HOT PLASMA
ION SOURCES
IONS
KEV RANGE
KEV RANGE 10-100
LITHIUM IONS
MATHEMATICAL MODELS
NUCLEAR REACTIONS
PLASMA
PLASMA DIAGNOSTICS