In this paper the LASA calibration facility for the temperature sensors is described. After an overview of the most widely used temperature sensors in cryogenic applications, the calibration curves of some CLTS and Pt100 installed on the B0 model coil are reported and discussed. Then, by general considerations and from the specific results, the accuracy of every type of sensor is discussed. Good reading electronics is needed for accurate temperature measurements, especially for the Cryogenic Linear Temperature Sensors (CLTS). For CLTS the calibration is mandatory if used at low temperature. It is recommended to verify the characteristics of the Pt100, in order to check the standard of the sensors, either USA or EU. The calibration is necessary if good accuracy in the measurements is required and is anyway necessary if Pt100 are used at low temperature (below 60 K).
F. et al. (Mon,) studied this question.