Article

Infrared TV measurement of fast ion loss on JT‐60U

Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Naka‐machi, Naka‐gun, Ibaraki‐ken 311‐01, Japan
Review of Scientific Instruments (impact factor: 1.37). 02/1995; DOI:10.1063/1.1146297 pp.594 - 596
Source: IEEE Xplore

ABSTRACT Toroidal field (TF) ripple transport, wave‐particle interaction, and large magnetohydrodynamic modes can enhance fast ion losses and result in localized heat deposition on the first wall. Two‐dimensional (2D) thermal measurement on the first wall provides useful information concerning these fast ion behaviors. In this article, we focus on the application of the 2D measurement with an infrared TV camera to TF ripple loss study. The content is (1) the 2D heat flux profile on the wall due to ripple loss, (2) the effects of the radial electric field, and (3) the ICRF effect on TF ripple loss. These experimental data demonstrate a great potential of infrared thermography in fast ion behavior study. © 1995 American Institute of Physics.

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Keywords

experimental data
 
fast ion behavior study
 
fast ion behaviors
 
fast ion losses
 
first wall
 
ICRF effect
 
infrared thermography
 
large magnetohydrodynamic modes
 
localized heat deposition
 
radial electric field
 
Toroidal field
 
wave‐particle interaction
 
© 1995 American Institute
 

K Tobita