Speckle interferometry diagnostic for erosion/redeposition measurements in tokamaks

被引：23
|
作者：
Gauthier, E [1 ]
Roupillard, G [1 ]
机构：
[1] CEA Cadarache, EURATOM Assoc, DSM, DRFC, F-13108 St Paul Les Durance, France
来源：
JOURNAL OF NUCLEAR MATERIALS | 2003年 / 313卷
关键词：
tokamak; erosion; redeposition; speckle; Tore Supra; interferometry laser;
D O I：
10.1016/S0022-3115(02)01448-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In order to measure erosion/redeposition during long duration discharges, a new diagnostic based on speckle interferometry is proposed. First experiments performed on carbon fiber composite materials have shown that this technique is able to measure a modification of the surface in the range of I gm. Further experiments have been performed on different materials using a second wavelength in order to increase the dynamic range from 0.1 to 100 mum and to perform 3D measurements of the surface. A diagnostic based on two-wavelength speckle interferometry to measure in situ erosion/redeposition during a single discharge on the CIEL limiter is under development. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：701 / 705
页数：5
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