Modeling of the ITER-like wide-angle infrared thermography view of JET

Journal Article · Mon Oct 15 04:00:00 EDT 2012 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4733532· OSTI ID:22093832

Aumeunier, M. -H. ^[1]; Firdaouss, M.; Travere, J. -M.; Loarer, T.; Gauthier, E.; Martin, V. ^[1]; Chabaud, D.; Humbert, E. ^[2]

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1. CEA, IRFM, F-13108 Saint-Paul-Lez-Durance (France)
2. OPTIS, ZE de La Farlede, F-83078 Toulon Cedex 9 (France)

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.

• OSTI ID: 22093832
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 10 Vol. 83; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DISTRIBUTION FUNCTIONS
EMISSIVITY
INFRARED THERMOGRAPHY
ITER TOKAMAK
MATERIALS
PLASMA CONFINEMENT
PLASMA DIAGNOSTICS
REFLECTIVITY
SIMULATION
SURFACES
TEMPERATURE MEASUREMENT