Published October 15, 2002 | Version v1
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Measurements of Prompt and MHD-Induced Fast Ion Loss from National Spherical Torus Experiment Plasmas

Creators

Description

A range of effects may make fast ion confinement in spherical tokamaks worse than in conventional aspect ratio tokamaks. Data from neutron detectors, a neutral particle analyzer, and a fast ion loss diagnostic on the National Spherical Torus Experiment (NSTX) indicate that neutral beam ion confinement is consistent with classical expectations in quiescent plasmas, within the ∼25% errors of measurement. However, fast ion confinement in NSTX is frequently affected by magnetohydrodynamic (MHD) activity, and the effect of MHD can be quite strong

Availability note (English)

Available from INIS in electronic form; Also available from OSTI as DE00809847; PURL: https://www.osti.gov/servlets/purl/809847-Pm1uWA/native/

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Additional details

Identifiers

URL
https://www.osti.gov/servlets/purl/809847-Pm1uWA/native/;

Publishing Information

Imprint Pagination
9 p.
Report number
PPPL--3754

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
34037384
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
ASPECT RATIO; IONS; MAGNETOHYDRODYNAMICS; NEUTRAL PARTICLE ANALYZERS; NEUTRON DETECTORS; NSTX DEVICE; PLASMA CONFINEMENT; QUIESCENT PLASMA
Descriptors DEC
CHARGED PARTICLES; CLOSED PLASMA DEVICES; CONFINEMENT; FLUID MECHANICS; HYDRODYNAMICS; MEASURING INSTRUMENTS; MECHANICS; PLASMA; RADIATION DETECTORS; SPECTROMETERS; SPHEROMAK DEVICES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES

Optional Information

Contract/Grant/Project number
AC--02-76CH03073
Funding organization
USDOE Office of Science (United States)