ATTAINMENT OF HIGH PLASMA DENSITIES IN TFTR WITH INJECTION OF MULTIPLE DEUTERIUM PELLETS

被引:21
作者
BELL, MG
SCHMIDT, GL
EFTHIMION, PC
GREK, B
HULSE, RA
OWENS, DK
PARK, HK
RAMSEY, AT
SCHIVELL, JF
TAYLOR, G
机构
[1] Plasma Phys. Lab., Princeton Univ., NJ
关键词
D O I
10.1088/0029-5515/32/9/I06
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Sequential injection of multiple deuterium pellets combined with high power neutral beam heating in TFTR has produced stable plasmas with very high central densities, up to 5 X 10(20) m-3. The line averaged densities achieved in these experiments correspond to Murakami parameters n(e)R/B(T)BAR up to 12 x 10(19) m-2.T-1. This value, which does not appear to represent an intrinsic density limit, surpasses the values previously obtained in TFTR and exceeds, by more than a factor of two, the density limit predicted by the scaling of Greenwald et al. (Nuclear Fusion 28 (1988) 2199). The highest densities obtained with both pellet and gas fuelling have been achieved since boronization was applied to the first wall in TFTR. The characteristics and energy balance of the highest density plasma are discussed.
引用
收藏
页码:1585 / 1591
页数:7
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