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Title: A new method of measuring the poloidal magnetic and radial electric fields in a tokamak using a laser-accelerated ion-beam trace probe

Both the poloidal magnetic field (B{sub p}) and radial electric field (E{sub r}) are significant in magnetic confinement devices. In this paper, a new method was proposed to diagnose both B{sub p} and E{sub r} at the same time, which was named Laser-accelerated Ion-beam Trace Probe (LITP). This method based on the laser-accelerated ion beam, which has three properties: large energy spread, short pulse lengths, and multiple charge states. LITP can provide the 1D profiles, or 2D images of both B{sub p} and E{sub r}. In this paper, we present the basic principle and some preliminary theoretical results.
Authors:
; ; ; ;  [1] ;  [2] ;  [3]
  1. State Key Labaratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871 (China)
  2. Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190 (China)
  3. Center for Fusion Science of Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041 (China)
Publication Date:
OSTI Identifier:
22303714
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 11; Other Information: (c) 2014 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; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CHARGE STATES; ELECTRIC FIELDS; IMAGES; ION BEAMS; LASERS; MAGNETIC CONFINEMENT; MAGNETIC FIELDS; PROBES; PULSES; TOKAMAK DEVICES