Published June 2015 | Version v1
Journal article Metadata-only

Design of power measurement system for LHCD on HL-2A tokamak

Creators

  • 1. Southwestern Institute of Physics, Chengdu (China)

Description

A new linear power measurement system composed of logarithmic detectors is designed for LHCD system, which can solve the problems of narrow input power dynamic range and nonlinearity of the power measurement detectors. The measured results indicate that the characteristic curve of new system has a wide dynamic range of power measurement and high linearity. The dynamic input power range is greater than 40dB when the logarithmic consistency error is from -1dB to +1dB. The correlation coefficient of >0.999 is achieved in serviceable ranges using linear fitting. These results are better than previous equipment's. (authors)

Additional details

Publishing Information

Journal Title
Nuclear Fusion and Plasma Physics
Journal Volume
35
Journal Issue
2
Journal Page Range
p. 109-113
ISSN
0254-6086

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
51032865
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
DESIGN; EQUIPMENT; ERRORS; HL-2A TOKAMAK; LOWER HYBRID CURRENT DRIVE; MICROWAVE RADIATION; NONLINEAR PROBLEMS; POWER RANGE
Descriptors DEC
CLOSED PLASMA DEVICES; ELECTROMAGNETIC RADIATION; NON-INDUCTIVE CURRENT DRIVE; RADIATIONS; THERMONUCLEAR DEVICES; TOKAMAK DEVICES

Optional Information

Notes
7 figs., 1 tab., 9 refs.