Design of endoscopes for monitoring water-cooled divertor in W7-X

•Challenging optical design with 120° field of view at high resolution to distinguish edges from tiles of W7-X divertor.•Tolerance requirements to each component based on overall optical performance.•First water cooled 3D printed part as plasma facing component in W7-X.•Front mirrors designed for cl...

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Veröffentlicht in:	Fusion engineering and design 2020-09, Vol.158, p.111841, Article 111841
Hauptverfasser:	Fellinger, Joris, Lippmann, Uwe, Greve, Henry, Alhashimi, Mohamad, Schülke, Mathias, Äkaslompolo, Simppa, Drewelow, Peter, Jakubowski, Marcin, König, Ralf, Lorenz, Axel
Format:	Artikel
Sprache:	eng
Schlagworte:	Divertor thermography Divertors (fusion reactors) ECRH stray radiation Endoscopes Field of view Image resolution Infrared Infrared radiation Modules Optical design Parameter sensitivity Pinholes Plasma Plasmas Wendelstein 7-X
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