Mirror test for International Thermonuclear Experimental reactor at the JET tokamak: An overview of the program

被引：47

作者：

Rubel, M. J. ^{[1
]}

De Temmerman, G.

Coad, J. P.

Vince, J.

Drake, J. R.

Le Guern, F.

Murari, A.

Pitts, R. A.

Walker, C.

机构：

[1] KTH, Royal Inst Technol, Assoc EURATOM VR, Alfven Lab, S-10044 Stockholm, Sweden

[2] Univ Basel, Inst Phys, Assoc EURATOM, CH-4056 Basel, Switzerland

[3] UKAEA Euratom Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

[4] EFDA, JET, Close Support Unit, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

[5] EURATOM, ENEA, Consorzio RFX, I-35127 Padua, Italy

[6] EURATOM, EPFL, Ctr Rech Phys Plasmas, CH-1015 Lausanne, Switzerland

[7] ITER Int Team, D-85748 Garching, Germany

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2006年 / 77卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1063/1.2202915

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Metallic mirrors will be essential components of all optical spectroscopy and imaging systems for plasma diagnosis that will be used at the next-step magnetic fusion experiment, International Thermonuclear Experimental Reactor (ITER). Any change of the mirror performance, in particular, reflectivity, will influence the quality and reliability of detected signals. At the instigation of the ITER Design Team, a dedicated technical and experimental activity aiming at the assessment of mirror surface degradation as a result of exposure to the plasma has been initiated on the JET tokamak. This article provides a comprehensive overview of the mirror test program, including design details of the mirror samples and their supports, their locations within JET, and the issue of optical characterization of the mirrors both before and after exposure. The postexposure characterization is particularly challenging in JET as a consequence of an environment in which both tritium and beryllium are present.

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