title: Status of the diagnostics development for the first operation phase of the stellarator Wendelstein 7-X.
abstract: An overview of the diagnostics which are essential for the first operational phase of Wendelstein 7-X and the set of diagnostics expected to be ready for operation at this time are presented. The ongoing investigations of how to cope with high levels of stray Electron Cyclotron Resonance Heating (ECRH) radiation in the ultraviolet (UV)/visible/infrared (IR) optical diagnostics are described.
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: R
authors.initials: R
authors.lastname: König
authors.affiliation: Institute of Energy and Climate Research, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany.
authors.forename: W
authors.initials: W
authors.lastname: Biel
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Biedermann
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Burhenn
authors.affiliation: Wigner RCP, RMI, Konkoly Thege 219-33, H-1121 Budapest, Hungary.
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authors.initials: G
authors.lastname: Cseh
authors.affiliation: IFPiLM, Hery Street 23, 01-497 Warsaw, Poland.
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authors.lastname: Czarnecka
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: M
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authors.lastname: Endler
authors.affiliation: Laboratorio Nacional de Fusion, CIEMAT, Avenida Complutense, Madrid, Spain.
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authors.lastname: Estrada
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: O
authors.initials: O
authors.lastname: Grulke
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Hathiramani
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Hirsch
authors.affiliation: IFPiLM, Hery Street 23, 01-497 Warsaw, Poland.
authors.forename: S
authors.initials: S
authors.lastname: Jabłonski
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Jakubowski
authors.affiliation: IFPiLM, Hery Street 23, 01-497 Warsaw, Poland.
authors.forename: J
authors.initials: J
authors.lastname: Kaczmarczyk
authors.affiliation: IGVP, Universität Stuttgart, Pfaffenwaldring 31, 70569 Stuttgart, Germany.
authors.forename: W
authors.initials: W
authors.lastname: Kasparek
authors.affiliation: Wigner RCP, RMI, Konkoly Thege 219-33, H-1121 Budapest, Hungary.
authors.forename: G
authors.initials: G
authors.lastname: Kocsis
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: P
authors.initials: P
authors.lastname: Kornejew
authors.affiliation: Institute of Energy and Climate Research, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Krämer-Flecken
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Krychowiak
authors.affiliation: IFPiLM, Hery Street 23, 01-497 Warsaw, Poland.
authors.forename: M
authors.initials: M
authors.lastname: Kubkowska
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Langenberg
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Laux
authors.affiliation: Institute of Energy and Climate Research, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany.
authors.forename: Y
authors.initials: Y
authors.lastname: Liang
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Lorenz
authors.affiliation: Institute of Energy and Climate Research, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany.
authors.forename: O
authors.initials: O
authors.lastname: Neubauer
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Otte
authors.affiliation: Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
authors.forename: N
authors.initials: N
authors.lastname: Pablant
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: E
authors.initials: E
authors.lastname: Pasch
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: T S
authors.initials: TS
authors.lastname: Pedersen
authors.affiliation: Department of Engineering Physics, University of Wisconsin-Madison, 1500 Engineering Drive, Madison, Wisconsin 53706, USA.
authors.forename: O
authors.initials: O
authors.lastname: Schmitz
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: W
authors.initials: W
authors.lastname: Schneider
authors.affiliation: Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Schuhmacher
authors.affiliation: Institute of Energy and Climate Research, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany.
authors.forename: B
authors.initials: B
authors.lastname: Schweer
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Thomsen
authors.affiliation: Wigner RCP, RMI, Konkoly Thege 219-33, H-1121 Budapest, Hungary.
authors.forename: T
authors.initials: T
authors.lastname: Szepesi
authors.affiliation: Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany.
authors.forename: B
authors.initials: B
authors.lastname: Wiegel
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: T
authors.initials: T
authors.lastname: Windisch
authors.affiliation: IGVP, Universität Stuttgart, Pfaffenwaldring 31, 70569 Stuttgart, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Wolf
authors.affiliation: Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Zhang
authors.affiliation: Wigner RCP, RMI, Konkoly Thege 219-33, H-1121 Budapest, Hungary.
authors.forename: S
authors.initials: S
authors.lastname: Zoletnik