Anisotropic electron temperature measurements without knowing the spectral transmissivity for a JT-60SA Thomson scattering diagnostic

Anisotropic electron temperature measurements without knowing the spectral transmissivity for a JT-60SA Thomson scattering diagnostic

This paper focuses on a method for measuring the electron temperature (T(e)) without knowing the transmissivity using Thomson scattering diagnostic with a double-pass scattering system. Application of this method for measuring the anisotropic T(e), i.e., the T(e) in the directions parallel (T(eparal...

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Veröffentlicht in:Review of scientific instruments 2012-10, Vol.83 (10), p.10E346-10E346
Hauptverfasser: Tojo, H, Hatae, T, Yatsuka, E, Itami, K
Format: Artikel
Sprache:eng
Schlagworte:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANISOTROPY
DESIGN
Diagnostic software
ELECTRON TEMPERATURE
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ION TEMPERATURE
MAGNETIC FIELDS
Measuring instruments
PLASMA
PLASMA DIAGNOSTICS
Scattering angle
SIMULATION
Spectra
TEMPERATURE MEASUREMENT
THERMONUCLEAR REACTORS
THOMSON SCATTERING
TOKAMAK DEVICES
Transmissivity
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Zusammenfassung:This paper focuses on a method for measuring the electron temperature (T(e)) without knowing the transmissivity using Thomson scattering diagnostic with a double-pass scattering system. Application of this method for measuring the anisotropic T(e), i.e., the T(e) in the directions parallel (T(eparallel)) and perpendicular (T(eperpendicular)) to the magnetic field, is proposed. Simulations based on the designed parameters for a JT-60SA indicate the feasibility of the measurements except in certain T(e) ranges, e.g., T(eparallel) ~ 3.5T(eperpendicular) at 120° of the scattering angle.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4745214