ISLANDS OF RUNAWAY ELECTRONS IN THE TEXTOR TOKAMAK AND RELATION TO TRANSPORT IN A STOCHASTIC FIELD

被引：90

作者：

JASPERS, R ^{[1
]}

CARDOZO, NJL ^{[1
]}

FINKEN, KH ^{[1
]}

SCHOKKER, BC ^{[1
]}

MANK, G ^{[1
]}

FUCHS, G ^{[1
]}

SCHULLER, FC ^{[1
]}

机构：

[1] KFA JULICH,FORSCHUNGSZENTRUM JULICH,INST PLASMAPHYS,D-52425 JULICH,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.72.4093

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A population of 30 MeV runaway electrons in the TEXTOR tokamak is diagnosed by their synchrotron emission. During pellet injection a large fraction of the population is lost within 600 mus. This rapid loss is attributed to stochastization of the magnetic field. The remaining runaways form a narrow, helical beam at the q = 1 drift surface. The radial and poloidal diffusion of this beam is extremely slow, D < 0.02 m2/s. The fact that the beam survives the period of stochastic field shows that in the chaotic sea big magnetic islands must remain intact.

引用

页码：4093 / 4096

页数：4

共 11 条

[1] ENERGY FLUX TO THE TEXTOR LIMITERS DURING DISRUPTIONS [J].

FINKEN, KH ;

BAEK, WY ;

DIPPEL, KH ;

RUSSO, AJ ;

WATKINS, JG ;

BOEDO, JA ;

GRAY, DS .

NUCLEAR FUSION, 1992, 32 (06) :915-926

[2] OBSERVATION OF INFRARED SYNCHROTRON RADIATION FROM TOKAMAK RUNAWAY ELECTRONS IN TEXTOR [J].

FINKEN, KH ;

WATKINS, JG ;

RUSBULDT, D ;

CORBETT, WJ ;

DIPPEL, KH ;

GOEBEL, DM ;

MOYER, RA .

NUCLEAR FUSION, 1990, 30 (05) :859-870

[3]

FUSSMANN G, 1979, 7TH P INT C PLASM PH, V1, P401

[4] PLASMA TRANSPORT IN MIXED MAGNETIC TOPOLOGIES [J].

HEGNA, CC ;

CALLEN, JD .

PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1993, 5 (06) :1804-1808

[5] EXPERIMENTAL INVESTIGATION OF RUNAWAY ELECTRON GENERATION IN TEXTOR [J].

JASPERS, R ;

FINKEN, KH ;

MANK, G ;

HOENEN, F ;

BOEDO, JA ;

CARDOZO, NJL ;

SCHULLER, FC .

NUCLEAR FUSION, 1993, 33 (12) :1775-1785

[6]

JAYAKUMAR R, 1992, PPPL2849 PRINC PLASM

[7] RUNAWAY ELECTRONS AS A DIAGNOSTIC OF MAGNETIC FLUCTUATIONS IN THE EDGE PLASMA OF THE TEXAS EXPERIMENTAL TOKAMAK [J].

MYRA, JR ;

CATTO, PJ ;

WOOTTON, AJ ;

BENGTSON, RD ;

WANG, PW .

PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1992, 4 (07) :2092-2097

[8] ELECTRON HEAT-TRANSPORT IN A TOKAMAK WITH DESTROYED MAGNETIC SURFACES [J].

RECHESTER, AB ;

ROSENBLUTH, MN .

PHYSICAL REVIEW LETTERS, 1978, 40 (01) :38-41

[9]

SATO KN, 1992, P INT C PLASMA PHY C, V16, P403

[10] PERSISTENT DENSITY PERTURBATIONS AT RATIONAL-Q SURFACES FOLLOWING PELLET INJECTION IN THE JOINT EUROPEAN TORUS [J].

WELLER, A ;

CHEETHAM, AD ;

EDWARDS, AW ;

GILL, RD ;

GONDHALEKAR, A ;

GRANETZ, RS ;

SNIPES, J ;

WESSON, JA .

PHYSICAL REVIEW LETTERS, 1987, 59 (20) :2303-2306

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