title: Modeling of the ITER-like wide-angle infrared thermography view of             JET.
abstract: Infrared (IR) thermography systems are mandatory to ensure safe plasma operation             in fusion devices. However, IR measurements are made much more complicated in metallic             environment because of the spurious contributions of the reflected fluxes. This paper             presents a full predictive photonic simulation able to assess accurately the surface             temperature measurement with classical IR thermography from a given plasma scenario and             by taking into account the optical properties of PFCs materials. This simulation has             been carried out the ITER-like wide angle infrared camera view of JET in comparing with             experimental data. The consequences and the effects of the low emissivity and the             bidirectional reflectivity distribution function used in the model for the metallic PFCs             on the contribution of the reflected flux in the analysis are discussed.
authors.affiliation: CEA, IRFM, F-13108 Saint-Paul-Lez-Durance, France.
authors.forename: M-H
authors.initials: MH
authors.lastname: Aumeunier
authors.forename: M
authors.initials: M
authors.lastname: Firdaouss
authors.forename: J-M
authors.initials: JM
authors.lastname: Travère
authors.forename: T
authors.initials: T
authors.lastname: Loarer
authors.forename: E
authors.initials: E
authors.lastname: Gauthier
authors.forename: V
authors.initials: V
authors.lastname: Martin
authors.forename: D
authors.initials: D
authors.lastname: Chabaud
authors.forename: E
authors.initials: E
authors.lastname: Humbert