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Title: Halo current diagnostic system of experimental advanced superconducting tokamak

The design, calibration, and installation of disruption halo current sensors for the Experimental Advanced Superconducting Tokamak are described in this article. All the sensors are Rogowski coils that surround conducting structures, and all the signals are analog integrated. Coils with two different cross-section sizes have been fabricated, and their mutual inductances are calibrated. Sensors have been installed to measure halo currents in several different parts of both the upper divertor (tungsten) and lower divertor (graphite) at several toroidal locations. Initial measurements from disruptions show that the halo current diagnostics are working well.
Authors:
; ; ; ; ;  [1] ;  [2]
  1. Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei 230031 (China)
  2. MIT Plasma Science and Fusion Center, Cambridge, Massachusetts 02139 (United States)
Publication Date:
OSTI Identifier:
22482561
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CALIBRATION; CURRENTS; DESIGN; DIVERTORS; GRAPHITE; HT-7U TOKAMAK; INDUCTANCE; ROGOWSKI COIL; SENSORS; SIGNALS; TUNGSTEN