Vol. 41, Issue 2, pp. 455-462

Abstract

The paper discusses the effects of electron radiation on resistance type Ru-based thick-film temperature sensors. Specimens, both commercial and lab made, were irradiated by the electron beam of the fluence from 5×10¹⁵ to 5×10¹⁷ e/cm². R vs. T characteristics were measured from 4 to 300 K before irradiation and after each radiation dose. Measurements show that sensors containing a higher amount of metallic phase (lower resistance) are more immune to radiation. This statement concerns also low frequency noise which was observed to increase less for low-resistance samples. Our conclusion is that the application of Ru-based temperature sensors in the radiation environment is limited to the low temperature region – below 20…25 K.