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Title: Calibration of a 32 channel electron cyclotron emission radiometer on the HL-2A tokamak

A novel 32-channel electron cyclotron emission radiometer has been designed and tested for the measurement of electron temperature profiles on the HL-2A tokamak. This system is based on the intermediate frequency filter detection technique, and has the features of wide working frequency range and high spatial resolution. Two relative calibration methods have been investigated: sweeping the toroidal magnetic field and hopping the output frequency of the local oscillator. Preliminary results show that both methods can ensure reasonable profiles.
Authors:
; ; ; ; ; ; ; ; ;  [1]
  1. Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041 (China)
Publication Date:
OSTI Identifier:
22253498
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 2; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CALIBRATION; CYCLOTRONS; DESIGN; ELECTRON TEMPERATURE; FREQUENCY RANGE; HL-2A TOKAMAK; MAGNETIC FIELDS; OSCILLATORS; RADIOMETERS; SPATIAL RESOLUTION