Confocal chromatic sensor for displacement monitoring in research reactor

Confocal chromatic microscopy is an optical technique allowing measuring displacement, thickness, and roughness with a sub-micrometric precision. Its operation principle is based on a wavelength encoding of the object position. Historically, the company STIL based in the south of France has first de...

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Autores principales:	Agoyan Marion, Fourneau Gary, Cheymol Guy, Ladaci Ayoub, Maskrot Hicham, Destouches Christophe, Fourmentel Damien, Gérand Sébastien, Gaillard-Groléas Jérôme, Desjacques Matthieu, Girard Sylvain, Boukenter Aziz
Formato:	article
Lenguaje:	EN
Publicado:	EDP Sciences 2021
Materias:	confocal chromatic sensor pressurized water reactor radiation-induced-attenuation radiation-inducedrefractive-index-change temperature optical design Physics QC1-999
Acceso en línea:	https://doaj.org/article/1491e7c7fb9d431db01008b200c95e5c
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id	oai:doaj.org-article:1491e7c7fb9d431db01008b200c95e5c
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spelling	oai:doaj.org-article:1491e7c7fb9d431db01008b200c95e5c2021-12-02T17:12:46ZConfocal chromatic sensor for displacement monitoring in research reactor2100-014X10.1051/epjconf/202125304021https://doaj.org/article/1491e7c7fb9d431db01008b200c95e5c2021-01-01T00:00:00Zhttps://www.epj-conferences.org/articles/epjconf/pdf/2021/07/epjconf_animma2021_04021.pdfhttps://doaj.org/toc/2100-014XConfocal chromatic microscopy is an optical technique allowing measuring displacement, thickness, and roughness with a sub-micrometric precision. Its operation principle is based on a wavelength encoding of the object position. Historically, the company STIL based in the south of France has first developed this class of sensors in the 90’s. Of course, this sensor can only operate in a sufficiently transparent medium in the used spectral domain. It presents the advantage of being contactless, which is a crucial advantage for some applications such as the fuel rod displacement measurement in a nuclear research reactor core and in particular for cladding-swelling measurements. The extreme environmental conditions encountered in such experiments i.e. high temperature, high pressure, high radiations flux, strong vibrations, surrounding turbulent flow can affect the performances of this optical system. We then need to implement mitigation techniques to optimize the sensor performance in this specific environment. Another constraint concerns the small volume available in the irradiation rig next to the rod to monitor, implying the challenge to conceive a miniaturized sensor able to operate under these constraints.Agoyan MarionFourneau GaryCheymol GuyLadaci AyoubMaskrot HichamDestouches ChristopheFourmentel DamienGérand SébastienGaillard-Groléas JérômeDesjacques MatthieuGirard SylvainBoukenter AzizEDP Sciencesarticleconfocal chromatic sensorpressurized water reactorradiation-induced-attenuationradiation-inducedrefractive-index-changetemperatureoptical designPhysicsQC1-999ENEPJ Web of Conferences, Vol 253, p 04021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	confocal chromatic sensor pressurized water reactor radiation-induced-attenuation radiation-inducedrefractive-index-change temperature optical design Physics QC1-999
spellingShingle	confocal chromatic sensor pressurized water reactor radiation-induced-attenuation radiation-inducedrefractive-index-change temperature optical design Physics QC1-999 Agoyan Marion Fourneau Gary Cheymol Guy Ladaci Ayoub Maskrot Hicham Destouches Christophe Fourmentel Damien Gérand Sébastien Gaillard-Groléas Jérôme Desjacques Matthieu Girard Sylvain Boukenter Aziz Confocal chromatic sensor for displacement monitoring in research reactor
description	Confocal chromatic microscopy is an optical technique allowing measuring displacement, thickness, and roughness with a sub-micrometric precision. Its operation principle is based on a wavelength encoding of the object position. Historically, the company STIL based in the south of France has first developed this class of sensors in the 90’s. Of course, this sensor can only operate in a sufficiently transparent medium in the used spectral domain. It presents the advantage of being contactless, which is a crucial advantage for some applications such as the fuel rod displacement measurement in a nuclear research reactor core and in particular for cladding-swelling measurements. The extreme environmental conditions encountered in such experiments i.e. high temperature, high pressure, high radiations flux, strong vibrations, surrounding turbulent flow can affect the performances of this optical system. We then need to implement mitigation techniques to optimize the sensor performance in this specific environment. Another constraint concerns the small volume available in the irradiation rig next to the rod to monitor, implying the challenge to conceive a miniaturized sensor able to operate under these constraints.
format	article
author	Agoyan Marion Fourneau Gary Cheymol Guy Ladaci Ayoub Maskrot Hicham Destouches Christophe Fourmentel Damien Gérand Sébastien Gaillard-Groléas Jérôme Desjacques Matthieu Girard Sylvain Boukenter Aziz
author_facet	Agoyan Marion Fourneau Gary Cheymol Guy Ladaci Ayoub Maskrot Hicham Destouches Christophe Fourmentel Damien Gérand Sébastien Gaillard-Groléas Jérôme Desjacques Matthieu Girard Sylvain Boukenter Aziz
author_sort	Agoyan Marion
title	Confocal chromatic sensor for displacement monitoring in research reactor
title_short	Confocal chromatic sensor for displacement monitoring in research reactor
title_full	Confocal chromatic sensor for displacement monitoring in research reactor
title_fullStr	Confocal chromatic sensor for displacement monitoring in research reactor
title_full_unstemmed	Confocal chromatic sensor for displacement monitoring in research reactor
title_sort	confocal chromatic sensor for displacement monitoring in research reactor
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/1491e7c7fb9d431db01008b200c95e5c
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_version_	1718381363137085440

Confocal chromatic sensor for displacement monitoring in research reactor

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