Published October 2012 | Version v1
Journal article Metadata-only

Recent progress of the HCN interferometer on J-TEXT tokamak

Creators

  • 1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074 (China)

Description

A multichannel far-infrared HCN laser interferometer has been developed to measure plasma electron density for the J-TEXT tokamak. Initial operation of a seven chords system with 7 cm spacing and a 0.1 ms temporal resolution is described. Density modulation experiments in J-TEXT show that it is possible to obtain information on particle transport by precise measurement of the density perturbation amplitude and phase spatial variation. An optical configuration upgrade has been implemented in order to improve phase resolution.

Additional details

Identifiers

DOI
10.1063/1.4728310;

Publishing Information

Journal Title
Review of Scientific Instruments
Journal Volume
83
Journal Issue
10
Journal Page Range
p. 10E303-10E303.3
ISSN
0034-6748
CODEN
RSINAK

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44052322
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
AMPLITUDES; CONFINEMENT; DISTURBANCES; ELECTRON DENSITY; INTERFEROMETERS; LASER RADIATION; MODULATION; PERTURBATION THEORY; PLASMA; PLASMA DENSITY; PLASMA DIAGNOSTICS; RESOLUTION; TOKAMAK DEVICES
Descriptors DEC
CLOSED PLASMA DEVICES; ELECTROMAGNETIC RADIATION; MEASURING INSTRUMENTS; RADIATIONS; THERMONUCLEAR DEVICES

Optional Information

Notes
(c) 2012 American Institute of Physics