NOVEL SCANNING INTERFEROMETER FOR 2-DIMENSIONAL PLASMA-DENSITY MEASUREMENTS

被引:22
作者
HOWARD, J
机构
[1] Plasma Research Laboratory, Research School of Physical Sciences, Australian National University, Canberra, ACT
关键词
D O I
10.1063/1.1141428
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A novel multichannel scanning interferometer designed for tomographically inferring contours of electron density in magnetically confined plasmas is described. The scanning element is a multisectored blazed rotating grating. The diffracted beam emerges at a different angle from each sector, giving rise to a fan array of discrete beams for each rotation of the grating. Signals from the probing chords are multiplexed in time enabling the use of a single detecting element for the extraction of many channels of line-integrated density information. An air-turbine-driven grating wheel assembly has been fabricated and initial tests performed. The proposed interferometer is to operate at 337 μm and will be installed on the H-1 helical axis stellarator currently under construction at the Australian National University.
引用
收藏
页码:1086 / 1094
页数:9
相关论文
共 17 条
[1]   CO2-LASER INTERFEROMETER ARRAY FOR BIG DEE [J].
FAIRBANKS, ES .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1985, 56 (05) :905-907
[2]  
GRESHAM R, COMMUNICATION
[3]  
GRESHAM R, 1988, ANU TR8810 PLASM RES
[4]  
HAMBERGER SM, 1989, ANU PP895 PLASM RES
[5]   TOMOGRAPHY AND RELIABLE INFORMATION [J].
HOWARD, J .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1988, 5 (07) :999-1014
[6]   THE USE OF POLARIZATION TRANSFORMING REFLECTORS FOR FAR-INFRARED AND MILLIMETER WAVES [J].
HOWARD, J ;
PEEBLES, WA ;
LUHMANN, NC .
INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES, 1986, 7 (10) :1591-1603
[7]  
HOWARD J, 1987, 14THP EUR C CONTR FU, P1310
[8]  
HOWARD JB, UNPUB
[9]  
LANDAU LD, 1963, FLUID MECHANICS, P131
[10]  
Li Y., COMMUNICATION