Table 4.

ESE parameter values for combining minimum datasets for $I_{\text{c}}(B,T)$ and $I_{\text{c}}(\epsilon )$ from two different measurement apparatuses. These were obtained with equation-set (11) and the Exponential model for $b_{\text{c}2}(\epsilon )$. Two fitting procedures were used: a simultaneous fit for well-matched datasets (top part of the table) and a three-step iterative procedure for mismatched datasets (lower part). Red italic type indicates the parameters that can be determined by each limited dataset (as listed in table 3). By iterating, these values are then used to fix parameter values in the next step (indicated in bold type). Data are for a Nb₃Sn conductor made by Luvata, billet #NT8404 ITER-TF conductor, trimmed at $F_{\text{P}}<100$ AT, $T>12\text{K}$. Source data for both datasets are given as Excel^™ files online in the supplemental website.

				Core scaling parameters
Parameters:		$C$	${B_{\text{c}2}}^{\ast }(0,0)$ (T)	${T_{\text{c}}}^{\ast }(0)$ (K)	$\eta$	$s$	${\epsilon }_{l0}$ (%)	$C_1$	$p$	$q$
Simultaneous fit, $I_{\text{c}}$ criterion = 0.1 μV cm−1 for both datasets
		14 955	29.74	16.43	1.966	1.4	−0.321	0.657	0.562	1.703
Three-step iterative fit (temp-strain-temp), strain data $I_{\text{c}}$ crit = 1 μV cm−1, temp data $I_{\text{c}}$ crit = 0.1 μV cm−1
1	$I_{\text{c}}(B,T)$ 0.1μV cm−1	14 087	28.49	16.19	1.966	1.4	$b_{\text{c}2}(\mathit{\epsilon })$		0.562	1.710
2	$I_{\text{c}}(\epsilon )$ 1μV cm−1	18 050	28.49	16.19	1.966	1.4	−0.318	0.616	0.562	1.710
3	$I_{\text{c}}(B,T)$ 0.1μV cm−1	14 930	29.70	16.41	1.966	1.4	−0.318	0.616	0.562	1.710