HELIUM ASH EXHAUST STUDIES WITH CORE FUELING BY A HELIUM BEAM - L-MODE DIVERTOR DISCHARGES WITH NEUTRAL-BEAM HEATING IN THE JT-60 TOKAMAK

被引：33

作者：

NAKAMURA, H

HIRAYAMA, T

KOIDE, Y

TOBITA, K

TANI, K

FUKUDA, T

KUBO, H

KURIYAMA, M

KUSAMA, Y

SAKASAI, A

SUGIE, T

YOSHIDA, H

机构：

[1] Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-gun, Ibaraki-ken 311-01, Naka-machi

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.67.2658

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The first experiment simulating helium ash exhaust in a DT fusion reactor has been performed in the JT-60 tokamak with L-mode divertor discharges. He was injected with a 30-keV neutral beam to realize core fueling. Divertor neutral pressures of hydrogen and He increased in proportion to the cube of the electron density of the main plasma. The He enrichment factor was 0.5 at n(e)BAR = 6 x 10(19) m-3 and increased in proportion to n(e). In an L-mode plasma of a fusion reactor, thermalized alpha-particles (He ash) generated in the core plasma can be easily exhausted with a pumping speed of several tens m3/s.

引用

页码：2658 / 2661

页数：4

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