Measurement of Thermophysical Properties for Future Development of Cryogenic Radiometers
Z M. Zhang, Steven R. Lorentz, Joseph P. Rice, Raju V. Datla
We have measured the thermal conductivity of polyimide at temperatures from 2.4 K to 8 K, and specific heats of polyimide and a black paint at 2.4 K and 4.4 K. It is shown that the responsivity and time response of cryogenic radiometers can be significantly improved by the use of a polyimide film as the heat link. This study will help future development of highly sensitive absolute cryogenic radiometers.
blank paint, cryogenic radiometer, polyimide
, Lorentz, S.
, Rice, J.
and Datla, R.
Measurement of Thermophysical Properties for Future Development of Cryogenic Radiometers, Metrologia
(Accessed March 2, 2024)