Title :
Progress in noise thermometry for nuclear applications
Author :
Lopez, A.Legrand ; Villard, J.F.
Author_Institution :
Nucl. Energy Div., Commissariat a l´´Energie Atomique (CEA), Gif-sur-Yvette, France
Abstract :
The effects of nuclear radiations on conventional thermocouples (type K, C and N) mainly used in irradiation experiments may create significant drifts of the signals. In order to solve these difficulties, the CEA (French Nuclear Energy Commission) has developed and qualified in laboratory conditions miniature devices, which combine a noise thermometer and intrinsic thermocouples (NT-TC), for future application in a research reactor. In this paper, a particular approach of combined NT-TC sensors is described. Present measurements, based on a correlation and a comparison technique, have been performed in a typical laboratory environment between 200 and 400 °C which are typical temperatures in materials irradiation experiments.
Keywords :
fission reactor instrumentation; fission research reactors; thermocouples; thermometers; CEA; French Nuclear Energy Commission; NT-TC sensors; intrinsic thermocouples; materials irradiation experiments; miniature devices; noise thermometer; noise thermometry; nuclear applications; nuclear radiation effects; research reactor; signal drift; temperature 200 degC to 400 degC; type C thermocouples; type K thermocouples; type N thermocouples; Cable insulation; Cable shielding; Noise; Resistors; Temperature measurement; Temperature sensors;
Conference_Titel :
Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA), 2011 2nd International Conference on
Conference_Location :
Ghent
Print_ISBN :
978-1-4577-0925-8
DOI :
10.1109/ANIMMA.2011.6172899
