Numerical investigation of threshold power by using the Shaing L-H transition model

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Published 29 April 2002 • Published under licence by IOP Publishing Ltd
, , Citation R Hiwatari et al 2002 Plasma Phys. Control. Fusion 44 A445 DOI 10.1088/0741-3335/44/5A/349

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Author affiliations

1 Komae Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI), Komae-shi, Japan

2 Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken, Tokyo 201-8511, Japan

3 Engineering Physics Department, University of Wisconsin, Madison, WI 53706-1687, USA

4 Oak Ridge National Laboratory, Oak Ridge, TN 37831-8071, USA

5 High Temperature Plasma Center, University of Tokyo, Tokyo 113-8656, Japan

Dates

  1. Received 5 September 2001
  2. Published

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0741-3335/44/5A/A445

Abstract

We carry out transport simulations of the L-H transition by the Shaing L-H transition model based on ion orbit losses, and find that the time scale of the L-H transition and the time scale for development of the H-mode pedestal are consistent with experimental observations. We also compare the power threshold derived from the Shaing L-H transition model with L-H transition threshold power scaling laws. We find that the magnetic field, Bt, plasma density, ne, and plasma current, Ip, scaling can be reproduced.

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10.1088/0741-3335/44/5A/349