CORRELATION REFLECTOMETRY - AN EXPERIMENTAL INVESTIGATION OF MEASUREMENT CAPABILITY

被引:16
作者
RHODES, TL
TAYLOR, RJ
PEEBLES, WA
机构
[1] UNIV CALIF LOS ANGELES,DEPT MECH AEROSP & NUCL ENGN,LOS ANGELES,CA 90024
[2] UNIV CALIF LOS ANGELES,INST PLASMA & FUS RES,LOS ANGELES,CA 90024
关键词
D O I
10.1063/1.1146235
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The correlation reflectometer was conceived as a method of determining the interior correlation length of plasma turbulence in a nonperturbing and localized manner. Currently, measurements on different machines have produced different lengths and tendencies. Theories have been used to interpret the data from this diagnostic, but the diagnostic and theories remain unverified by direct validation with other diagnostics. As part of its ongoing research program aimed at the understanding and full utilization of reflectometry, UCLA has initiated a direct comparison between turbulent correlation lengths as measured by reflectometry and Langmuir probes. This investigation is performed on the CCT tokamak at UCLA. Initial results show good agreement between the two diagnostics, with radial coherence lengths in the range 1.0-3.0 cm depending upon the frequency of the fluctuation. A detailed description of the experiment and initial results are presented. © 1995 American Institute of Physics.
引用
收藏
页码:824 / 826
页数:3
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