Published October 1992
| Version v1
Journal article
Localized magnetic field pitch angle measurements by collective Thomson scattering
Creators
- 1. Massachusetts Institute of Technology Plasma Fusion Center, Cambridge, Massachusetts 02139 (United States)
Description
A novel new method is proposed to measure the internal magnetic field pitch angle in tokamaks by measuring the frequency of the lower hybrid resonance in the collective Thomson scattered spectrum. The resonance frequency has a dependence of 1.2 and 2.0 GHz/deg pitch angle for ITER and C-MOD-like plasma parameters, respectively, using a submillimeter-wave diagnostic source. Sensitivity to other plasma parameters such as electron density, temperature, energetic ion fraction, and magnetic field is shown to be weak
Additional details
Publishing Information
- Journal Title
- Review of Scientific Instruments
- Journal Volume
- 63
- Journal Issue
- 10
- Journal Page Range
- p. 4641-4643.
- ISSN
- 0034-6748
- CODEN
- RSINAK
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 24017600
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- ELECTRON DENSITY; ELECTRON TEMPERATURE; HYBRID RESONANCE; MAGNETIC FIELD CONFIGURATIONS; PLASMA DIAGNOSTICS; THOMSON SCATTERING; TOKAMAK DEVICES
- Descriptors DEC
- CLOSED PLASMA DEVICES; INELASTIC SCATTERING; RESONANCE; SCATTERING; THERMONUCLEAR DEVICES