Applicability of LIBS for in situ monitoring of deposition and retention on the ITER-like wall of JET - Comparison to SIMS

被引：43

作者：

Karhunen, J. ^{[1
,2
]}

Hakola, A. ^{[1
,3
]}

Likonen, J. ^{[1
,3
]}

Lissovski, A. ^{[1
,4
]}

Laan, M. ^{[1
,4
]}

Paris, P. ^{[1
,4
]}

机构：

[1] JET EFDA, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

[2] Aalto Univ, Espoo 02150, Finland

[3] VTT Tech Res Ctr Finland, Espoo 02044, Finland

[4] Univ Tartu, Inst Phys, EE-51010 Tartu, Estonia

来源：

JOURNAL OF NUCLEAR MATERIALS | 2015年 / 463卷

关键词：

Laser diagnostics - Atomic emission spectroscopy - Laser induced breakdown spectroscopy - Fighter aircraft - Deuterium;

D O I：

10.1016/j.jnucmat.2014.10.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Laser-induced breakdown spectroscopy (LIBS) is a potential method for in situ monitoring of deposition and retention in fusion devices and is developed with the aim of being integrated in the diagnostics system of ITER. The inner divertor of the ITER-like wall of JET was studied by LIBS to show the applicability of the method in JET and ITER. The elemental depth profiles agreed with those given by earlier SIMS measurements. Deuterium was detected in the deposited layers and successfully distinguished from hydrogen. The poloidal patterns of the retained deuterium and deposited beryllium were also in line with the SIMS results with the largest deposition and retention taking place on the top part of Tile 1 and bottom part of Tile 3. The results of these studies support LIBS as a promising in situ solution to replace the present post mortem methods in monitoring metallic deposited layers. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：931 / 935

页数：5

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