Calibration procedures of the Tore-Supra infrared endoscopes
| العنوان: | Calibration procedures of the Tore-Supra infrared endoscopes |
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| المؤلفون: | M. Chantant, M. Jouve, M. Lipa, C. Desgranges, J. L. Gardarein, M. Firdaouss, C. Balorin, A. Saille, Th. Loarer, Roger Reichle |
| المساهمون: | Institut de Recherche sur la Fusion par confinement Magnétique (IRFM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Association EURATOM-CEA (CEA/DSM/DRFC), Institut universitaire des systèmes thermiques industriels (IUSTI), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU) |
| المصدر: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2018, 879, pp.121-133. ⟨10.1016/j.nima.2017.09.035⟩ Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2018, 879, pp.121-133. ⟨10.1016/j.nima.2017.09.035⟩ |
| بيانات النشر: | Elsevier BV, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Physics, Nuclear and High Energy Physics, Thermonuclear fusion, business.industry, Infrared, Plasma, Tore Supra, 01 natural sciences, 7. Clean energy, 010305 fluids & plasmas, [SPI]Engineering Sciences [physics], Optics, Heat flux, Shutter, 0103 physical sciences, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Calibration, 010306 general physics, business, Instrumentation, ComputingMilieux_MISCELLANEOUS, Overheating (electricity) |
| الوصف: | Five endoscopes equipped with infrared cameras working in the medium infrared range (3–5 μ m) are installed on the controlled thermonuclear fusion research device Tore-Supra. These endoscopes aim at monitoring the plasma facing components surface temperature to prevent their overheating. Signals delivered by infrared cameras through endoscopes are analysed and used on the one hand through a real time feedback control loop acting on the heating systems of the plasma to decrease plasma facing components surface temperatures when necessary, on the other hand for physics studies such as determination of the incoming heat flux . To ensure these two roles a very accurate knowledge of the absolute surface temperatures is mandatory. Consequently the infrared endoscopes must be calibrated through a very careful procedure. This means determining their transmission coefficients which is a delicate operation. Methods to calibrate infrared endoscopes during the shutdown period of the Tore-Supra machine will be presented. As they do not allow determining the possible transmittances evolution during operation an in-situ method is presented. It permits the validation of the calibration performed in laboratory as well as the monitoring of their evolution during machine operation. This is possible by the use of the endoscope shutter and a dedicated plasma scenario developed to heat it. Possible improvements of this method are briefly evoked. |
| تدمد: | 0168-9002 1872-9576 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b52affca058e915f0e21cb7df676fd0 https://doi.org/10.1016/j.nima.2017.09.035 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....1b52affca058e915f0e21cb7df676fd0 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 01689002 18729576 |
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