Tables and Electronic Supplementary Material (ESM) from Direct calibration of resistance thermometers between 10 K and 25 K by absolute acoustic gas thermometry in helium

The present article combines with ESM presented in form of Excel file, which comprises: - values of M, γ0 and R used to determine the thermodynamic temperature T; - tabulated values of the reference temperatures Tref, reference pressures pref; - tabulated values of the cavity radius at the reference conditions a(Tref, pref); - tabulated ab initio corrections of speed of sound to zero pressure; - tabulated values, for each acoustic mode 0N, of eigenvalues for the triaxial ellipsoid zEN; - tabulated mean values of the experimental acoustic frequency of each mode fac,exp at the reference conditions (Tref, pref) with corresponding standard deviations and halfwidths gac,exp, and corrected frequencies fac,un accounting for the relevant acoustic and microwave perturbations discussed in the article; - calculated values, for each acoustic mode 0N, of speed of sound w, speed of sound at zero pressure w0 and corresponding w02; - calculated values, for each acoustic mode 0N, of termodynamic temperature T and mean thermodynamic T for a subset of selected modes.