Multichannel and multicolour infrared thermography in Tore Supra

摘要: An imaging spectrometer using a sapphire prism as dispersing element has been conceived at Tore Supra for the spectral range of 1–4 μm. It measures simultaneously various wavelengths temperature on distributed high heat-flux elements under plasma impact with 36 optical fibers, four which are ZrF4 fibers. employs an InSb focal plane array detector (256*320 pixels) behind silicon filter and ZnS window yielding dynamic 200–1500 °C 20 ms temporal resolution. The fiber transmission spatial variation gain background camera calibrated light source integrating sphere. With blackbody one determines nonlinearity average controls its stability during operation. dispersion about 24 nm/pixel is determined interference filters controlled lamp. measurements allow to determine distribution in field view.