IMPURITY TRANSPORT IN JET USING LASER INJECTED IMPURITIES IN OHMIC AND RADIOFREQUENCY HEATED PLASMAS

被引：60
作者：
PASINI, D
MATTIOLI, M
EDWARDS, AW
GIANNELLA, R
GILL, RD
HAWKES, NC
MAGYAR, G
SAOUTIC, B
WANG, Z
ZASCHE, D
机构：
[1] JET Joint Undertaking, Abingdon, Oxfordshire
[2] Centre d'études nucléaires de Cadarache, Association Euratom-CEA sur la fusion, Saint-Paul-lez-Durance
[3] Culham Laboratory, Euratom-UKAEA Fusion Association, Abingdon, Oxfordshire
[4] Southwestern Institute of Physics, Leshan, Sichuan
[5] Max-Planck-Institut für Plasmaphysik, Euratom-IPP Association, Garching bei Miinchen
来源：
NUCLEAR FUSION | 1990年 / 30卷 / 10期
关键词：
D O I：
10.1088/0029-5515/30/10/007
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：
Small quantities of medium-Z and high-Z impurities were injected into JET plasmas and their progression was followed by two soft X-ray cameras with good spatial and temporal resolution. The results show that the transport of impurities is much slower in the central region of the plasma than outside of it and that it is greatly enhanced during sawtooth crashes. Simulation of the evolution of the emissivity profiles using an impurity transport code yielded values for the radially dependent transport coefficients; in particular, these values were compared for cases of ohmically heated plasmas and RF heated plasmas. © 1990 IOP Publishing Ltd.
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页码：2049 / 2062
页数：14
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