Published 2020 | Version v1
Journal article Metadata-only

Measurement of electron temperature profile and fluctuation with ECE radiometer system in Heliotron J

Creators

  • 1. Kyoto University, Graduate School of Energy Science, Uji, Kyoto (Japan)
  • 2. Kyoto University, Institute of Advanced Energy, Uji, Kyoto (Japan)
  • 3. Max-Planck Institute for Plasma Physics, Greifswald (Germany)

Description

A multi-channel electron cyclotron emission (ECE) radiometer system is being developed in Heliotron J to measure electron temperature (Te) profile and evaluate Te fluctuation. The conventional ECE part of this system includes 16 channels and can measure electron temperature profile from 58 GHz to 74 GHz which covers from the core to the edge region, and the correlation ECE part is composed of CECE-RF and CECE-IF sides. The signals from these two sides share a same source of electron cyclotron emission and thus are possible to estimate electron temperature fluctuation through correlation analysis. An ECE profile has been obtained and compared with data from Thomson scattering system in an electron cyclotron heated plasma. Electron temperature fluctuation levels were estimated in an ECH plasma using a cross-correlation function and a complex coherence function. (author)

Availability note (English)

Available from DOI: https://doi.org/10.1585/pfr.15.2402038

Additional details

Identifiers

DOI
10.1585/pfr.15.2402038;

Publishing Information

Journal Title
Plasma and Fusion Research
Journal Volume
15
Journal Issue
special issue 1
Journal Page Range
p. 2402038.1-2402038.4
ISSN
1880-6821

Conference

Title
28. international Toki conference on plasma and fusion research
Acronym
ITC28
Dates
5-8 Nov 2019
Place
Toki, Gifu (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
52072945
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CORRELATIONS; ECR HEATING; ELECTRON CYCLOTRON-RESONANCE; ELECTRON TEMPERATURE; HEAT TRANSFER; HELIOTRON; NEUTRAL ATOM BEAM INJECTION; OSCILLATORS; PLASMA; RADIOMETERS; RF SYSTEMS; TEMPERATURE DISTRIBUTION; THERMONUCLEAR REACTIONS; THOMSON SCATTERING
Descriptors DEC
BEAM INJECTION; CLOSED PLASMA DEVICES; CYCLOTRON RESONANCE; ELECTRONIC EQUIPMENT; ENERGY TRANSFER; EQUIPMENT; HEATING; HIGH-FREQUENCY HEATING; INELASTIC SCATTERING; MEASURING INSTRUMENTS; NUCLEAR REACTIONS; NUCLEOSYNTHESIS; PLASMA HEATING; RADIATION DETECTORS; RESONANCE; SCATTERING; SYNTHESIS; THERMONUCLEAR DEVICES

Optional Information

Notes
14 refs., 7 figs.