A NEW MODE OF IMPROVED CONFINEMENT IN DISCHARGES WITH STATIONARY DENSITY IN JFT-2M

作     者：MORI, M SUZUKI, N UESUGI, Y OGAWA, T OGAWA, H OHTSUKA, H ODAJIMA, K KASAI, S KAWAKAMI, T KAWASHIMA, H SHOJI, T SENGOKU, S TAMAI, H NAKAZAWA, I HOSHINO, K MATSUMOTO, H MATSUDA, T MIURA, Y YAMAUCHI, T YAMAMOTO, T MAEDA, H 

作者机构：On leave from Mitsubishi Electric Corporation Department of Thermonuclear Fusion Research Naka Fusion Research Establishment Japan Atomic Energy Research Institute Naka-machi Naka-gun Ibaraki-ken Japan 

出 版 物：《NUCLEAR FUSION》 (核聚变)

年 卷 期：1988年第28卷第10期

页      面：1892-1897页

核心收录：

学科分类：08[工学] 0827[工学-核科学与技术] 0702[理学-物理学] 

主　　题：Plasmas 

摘      要：A new mode of improved energy confinement, for which the confinement time is not worse or is sometimes even better than that for the well known H-mode and the density of which is in a quasi-stationary state, has been obtained in neutral beam heating experiments on JFT-2M. The new mode is different from the H-mode in many respects. The central electron temperature is higher in the new mode than in the H-mode. Radiation loss and density are reduced in the peripheral region but not in the central region. Therefore, the density and radiation profiles are highly peaked in the new mode, in contrast to the broad profiles in the H-mode. Particle confinement in the peripheral region seems to be worse in the new mode than in the H-mode. The new mode can be obtained in both divertor configurations and limiter discharges in JFT-2M.