CONFINED ALPHA-DISTRIBUTION MEASUREMENTS IN A DEUTERIUM-TRITIUM TOKAMAK PLASMA

被引：57

作者：

MCKEE, G

FONCK, R

STRATTON, B

BELL, R

BUDNY, R

BUSH, C

GREK, B

JOHNSON, D

PARK, H

RAMSEY, A

SYNAKOWSKI, E

TAYLOR, G

机构：

[1] PRINCETON PLASMA PHYS LAB,PRINCETON,NJ 08543

[2] OAK RIDGE NATL LAB,OAK RIDGE,TN 37830

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.75.649

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Fusion-produced alpha particles with energy less than or equal to 0.7 MeV have been spectroscopically observed in the core of a deuterium-tritium plasma in the TFTR tokamak at alpha densities of 3 x 10(16) m(-3). During a sawtooth-free discharge, the measured energy spectra at r/a = 0.3 are in good agreement with those predicted on the basis of collisional transport. Time-resolved measurements during the alpha thermalization after alpha source turn-off show decay of the distribution function to lower energies consistent with the classical slowing-down time of 0.5 s.

引用

页码：649 / 652

页数：4

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