title: Development of visible spectroscopy diagnostics for W sources assessment in WEST.
abstract: The present work concerns the development of a W sources assessment system in the framework of the tungsten-W environment in steady state tokamak project that aims at equipping the existing Tore Supra device with a tungsten divertor in order to test actively cooled tungsten Plasma Facing Components (PFCs) in view of preparing ITER operation. The goal is to assess W sources and D recycling with spectral, spatial, and temporal resolution adapted to the PFCs observed. The originality of the system is that all optical elements are installed in the vacuum vessel and compatible with steady state operation. Our system is optimized to measure radiance as low as 1016Ph/(m2s sr). A total of 240 optical fibers will be deployed to the detection systems such as the "Filterscope," developed by Oak Ridge National Laboratory (USA) and consisting of photomultiplier tubes and filters, or imaging spectrometers dedicated to Multiview analysis.
authors.affiliation: CEA, IRFM, F-13108 Saint-Paul-Lez-Durance, France.
authors.forename: O
authors.initials: O
authors.lastname: Meyer
authors.affiliation: PIIM, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France.
authors.forename: O M
authors.initials: OM
authors.lastname: Jones
authors.affiliation: CEA, IRFM, F-13108 Saint-Paul-Lez-Durance, France.
authors.forename: J C
authors.initials: JC
authors.lastname: Giacalone
authors.affiliation: CEA, IRFM, F-13108 Saint-Paul-Lez-Durance, France.
authors.forename: J Y
authors.initials: JY
authors.lastname: Pascal
authors.affiliation: CEA, IRFM, F-13108 Saint-Paul-Lez-Durance, France.
authors.forename: D
authors.initials: D
authors.lastname: Raulin
authors.affiliation: ASIPP, 350 Shushanhu Road, Hefei, Anhui 230031, China.
authors.forename: H
authors.initials: H
authors.lastname: Xu
authors.affiliation: CEA, IRFM, F-13108 Saint-Paul-Lez-Durance, France.
authors.forename: M H
authors.initials: MH
authors.lastname: Aumeunier
authors.affiliation: PIIM, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France.
authors.forename: R
authors.initials: R
authors.lastname: Baude
authors.affiliation: PIIM, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France.
authors.forename: A
authors.initials: A
authors.lastname: Escarguel
authors.affiliation: CEA, IRFM, F-13108 Saint-Paul-Lez-Durance, France.
authors.forename: C
authors.initials: C
authors.lastname: Gil
authors.affiliation: ORNL, Oak Ridge, Tennessee 37831-6169, USA.
authors.forename: J H
authors.initials: JH
authors.lastname: Harris
authors.affiliation: CEA, IRFM, F-13108 Saint-Paul-Lez-Durance, France.
authors.forename: J-C
authors.initials: JC
authors.lastname: Hatchressian
authors.affiliation: ORNL, Oak Ridge, Tennessee 37831-6169, USA.
authors.forename: C C
authors.initials: CC
authors.lastname: Klepper
authors.affiliation: CEA, IRFM, F-13108 Saint-Paul-Lez-Durance, France.
authors.forename: S
authors.initials: S
authors.lastname: Larroque
authors.affiliation: CEA, IRFM, F-13108 Saint-Paul-Lez-Durance, France.
authors.forename: Ph
authors.initials: P
authors.lastname: Lotte
authors.affiliation: CEA, IRFM, F-13108 Saint-Paul-Lez-Durance, France.
authors.forename: Ph
authors.initials: P
authors.lastname: Moreau
authors.affiliation: CEA, IRFM, F-13108 Saint-Paul-Lez-Durance, France.
authors.forename: B
authors.initials: B
authors.lastname: Pégourié
authors.affiliation: CEA, IRFM, F-13108 Saint-Paul-Lez-Durance, France.
authors.forename: S
authors.initials: S
authors.lastname: Vartanian