TOMOGRAPHIC WIRE-GRID IMAGING OF MAGNETIC-SURFACES

被引：4

作者：

BLACKWELL, BD

HOWARD, J

TUMLOS, RB

机构：

[1] Plasma Research Laboratory, Research School of Physical Sciences and Engineering, Australian National University, Canberra

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1992年 / 63卷 / 10期

关键词：

D O I：

10.1063/1.1143620

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We describe a new, fast, and accurate method for obtaining magnetic surface puncture plots by the use of a rotating grid of fine wires. Electrons launched from a small gun follow the magnetic field lines, and a fraction are intercepted by the wire grid. The current signals, chordal integrals of electron beam intensity, are inverted by an iterative pseudotomographic method to obtain an image of the electron beam density in the plane of the grid, that is, a puncture plot of the magnetic surface. The method is capable of high resolution while maintaining a high transparency to electrons, and is demonstrated on a small toroidal stellarator, the SHEILA heliac.

引用

页码：4725 / 4727

页数：3

共 8 条

[1] EXPERIMENTAL STUDIES OF PLASMA CONFINED IN A TOROIDAL HELIAC [J].

BLACKWELL, BD ;

HAMBERGER, SM ;

SHARP, LE ;

SHI, XH .

AUSTRALIAN JOURNAL OF PHYSICS, 1989, 42 (01) :73-100

[2] ELECTRON-BEAM AND MAGNETIC-FIELD MAPPING TECHNIQUES USED TO DETERMINE FIELD ERRORS IN THE ATF TORSATRON [J].

COLCHIN, RJ ;

ANDERSON, FSB ;

ENGLAND, AC ;

GANDY, RF ;

HARRIS, JH ;

HENDERSON, MA ;

HILLIS, DL ;

KINDSFATHER, RR ;

LEE, DK ;

MILLION, DL ;

MURAKAMI, M ;

NEILSON, GH ;

SALTMARSH, MJ ;

SIMPSON, CM .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1989, 60 (08) :2680-2689

[3]

HAILER H, 1987, 14TH EUR C CONTR FUS

[4] H-1 DESIGN AND CONSTRUCTION [J].

HAMBERGER, SM ;

BLACKWELL, BD ;

SHARP, LE ;

SHENTON, DB .

FUSION TECHNOLOGY, 1990, 17 (01) :123-130

[5]

HWOARD J, 1988, J OPT SOC AM A, V5, P999

[6] STELLARATOR WENDELSTEIN-VII-AS - PHYSICS AND ENGINEERING DESIGN [J].

SAPPER, J ;

RENNER, H .

FUSION TECHNOLOGY, 1990, 17 (01) :62-75

[7] A METHOD FOR MAPPING A TOROIDAL MAGNETIC FIELD BY STORAGE OF PHASE STABILIZED ELECTRONS [J].

SINCLAIR, RM ;

HOSEA, JC ;

SHEFFIELD, GV .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1970, 41 (11) :1552-+

[8] MAGNETIC-FIELD MAPPING USING AN IMAGE-INTENSIFYING FLUORESCENT-PROBE [J].

TOU, TY ;

BLACKWELL, BD ;

SHARP, LE .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1991, 62 (05) :1149-1156

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