Experimental developments towards an ITER thermography diagnostic

R Reichle; Benoît Brichard; F Escourbiau; JL Gardarien; et al.; Marco Van Uffelen

doi:10.1016/j.jnucmat.2007.01.207

Experimental developments towards an ITER thermography diagnostic

R Reichle, Benoît Brichard, F Escourbiau, JL Gardarien, et al., Marco Van Uffelen

Research output › peer-review

Abstract

In the course of the development of a concept for a spectrally resolving thermography diagnostic for the ITER divertor using optical fibres experimental development work has been carried out in three different areas. Firstly ZrF4 fibres and hollow fibres (silica capillaries with internal AG/AgJ coating) were tested in a Co60 irradiation facility under c irradiation up to doses of 5 kGy and 27 kGy, respectively. The ZrF4 fibres suffered more radiation induced degradation (>1 db/m) then the hollow fibres (0–0.4 db/m). Secondly multi-colour pyroreflectometry is being developed towards tokamak applicability. The emissivity and temperature of tungsten samples were measured in the range of 700–1500 C. The angular working range for off normal observation of the method was 20–30. The working distance of the method has been be increased from cm to the m range.

Original language	English
Pages (from-to)	1466-1471
Journal	Journal of Nuclear Materials
Volume	363–365
DOIs	https://doi.org/10.1016/j.jnucmat.2007.01.207
State	Published - Apr 2007

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Cite this

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title = "Experimental developments towards an ITER thermography diagnostic",

abstract = "In the course of the development of a concept for a spectrally resolving thermography diagnostic for the ITER divertor using optical fibres experimental development work has been carried out in three different areas. Firstly ZrF4 fibres and hollow fibres (silica capillaries with internal AG/AgJ coating) were tested in a Co60 irradiation facility under c irradiation up to doses of 5 kGy and 27 kGy, respectively. The ZrF4 fibres suffered more radiation induced degradation (>1 db/m) then the hollow fibres (0–0.4 db/m). Secondly multi-colour pyroreflectometry is being developed towards tokamak applicability. The emissivity and temperature of tungsten samples were measured in the range of 700–1500 C. The angular working range for off normal observation of the method was 20–30. The working distance of the method has been be increased from cm to the m range.",

keywords = "Optical fibres, IR-thermography, Divertor diagnostic, Tungsten, ITER divertor target",

author = "R Reichle and Beno{\^i}t Brichard and F Escourbiau and JL Gardarien and {et al.} and {Van Uffelen}, Marco",

note = "Score = 10",

year = "2007",

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doi = "10.1016/j.jnucmat.2007.01.207",

language = "English",

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TY - JOUR

T1 - Experimental developments towards an ITER thermography diagnostic

AU - Reichle, R

AU - Brichard, Benoît

AU - Escourbiau, F

AU - Gardarien, JL

AU - et al.

A2 - Van Uffelen, Marco

N1 - Score = 10

PY - 2007/4

Y1 - 2007/4

N2 - In the course of the development of a concept for a spectrally resolving thermography diagnostic for the ITER divertor using optical fibres experimental development work has been carried out in three different areas. Firstly ZrF4 fibres and hollow fibres (silica capillaries with internal AG/AgJ coating) were tested in a Co60 irradiation facility under c irradiation up to doses of 5 kGy and 27 kGy, respectively. The ZrF4 fibres suffered more radiation induced degradation (>1 db/m) then the hollow fibres (0–0.4 db/m). Secondly multi-colour pyroreflectometry is being developed towards tokamak applicability. The emissivity and temperature of tungsten samples were measured in the range of 700–1500 C. The angular working range for off normal observation of the method was 20–30. The working distance of the method has been be increased from cm to the m range.

AB - In the course of the development of a concept for a spectrally resolving thermography diagnostic for the ITER divertor using optical fibres experimental development work has been carried out in three different areas. Firstly ZrF4 fibres and hollow fibres (silica capillaries with internal AG/AgJ coating) were tested in a Co60 irradiation facility under c irradiation up to doses of 5 kGy and 27 kGy, respectively. The ZrF4 fibres suffered more radiation induced degradation (>1 db/m) then the hollow fibres (0–0.4 db/m). Secondly multi-colour pyroreflectometry is being developed towards tokamak applicability. The emissivity and temperature of tungsten samples were measured in the range of 700–1500 C. The angular working range for off normal observation of the method was 20–30. The working distance of the method has been be increased from cm to the m range.

KW - Optical fibres

KW - IR-thermography

KW - Divertor diagnostic

KW - Tungsten

KW - ITER divertor target

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_103305

UR - http://knowledgecentre.sckcen.be/so2/bibref/6658

U2 - 10.1016/j.jnucmat.2007.01.207

DO - 10.1016/j.jnucmat.2007.01.207

M3 - Article

SN - 0022-3115

VL - 363–365

SP - 1466

EP - 1471

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

ER -