MEASUREMENTS OF THE ENERGY-DISTRIBUTION OF FAST TRITONS AND HELIUM-IONS ESCAPING FROM THE PLASMA IN JET

被引:7
作者
CARRUTHERS, EV
ZHU, J
STANGEBY, PC
MCCRACKEN, GM
COAD, JP
ERENTS, SK
GOODALL, DHJ
SIMPSON, JCB
PARTRIDGE, JW
机构
[1] CULHAM LAB,UKAEA EURATOM FUS ASSOC,ABINGDON OX14 3DB,OXON,ENGLAND
[2] UNIV TORONTO,INST AEROSP STUDIES,TORONTO M5S 1A1,ONTARIO,CANADA
关键词
D O I
10.1016/0022-3115(90)90186-Q
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The energy distributions of tritons and helium ions escaping to the wall and limiters in JET have been measured. The tritons are produced from the D-D reaction during NBI heating and are born with an energy of 1 MeV, while the He-3 ions have been accelerated by ICRH. The tritium is collected in carbon samples placed in a probe which discriminates energy on the basis of larmor radius and the ratio of perpendicular to parallel velocity. The helium ion energy is deduced by measuring the depth distribution in a nickel collector. The average energy of the escaping tritons is not greater than 6 keV and is probably thermal. The energy distribution of the helium is very broad, most ions having energies less than 30 keV but some having energies greater than 1 MeV.
引用
收藏
页码:1027 / 1031
页数:5
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