Thermal conductivity is given from Sascha’s data and his fitted curve.
Tanaka’s prototype experiment shows ~0.5K loss in the blade and bonds.

κ0=7.98*(Tsus^2.2);

Tanaka - kun' s result (TM 23.1K)

4*Integrate[κ0*π*(((dwire0/2))^2)/lsus,{Tsus,16.3,22.6}]/.{lsus->0.35,dwire0->0.0016}
2*Ipr/.Solve[(80ppm*15*2+0.5ppm*1000)*Ipr==%,Ipr][[1]]/.ppm->(10^(-6))

Full power (TM 24.9K)

4*Integrate[κ0*π*(((dwire0/2))^2)/lsus,{Tsus,16.3,24.4}]/.{lsus->0.35,dwire0->0.0016}
2*Ipr/.Solve[(80ppm*15*2+0.5ppm*1000)*Ipr==%,Ipr][[1]]/.ppm->(10^(-6))

TM 20K

4*Integrate[κ0*π*(((dwire0/2))^2)/lsus,{Tsus,16.3,19.5}]/.{lsus->0.35,dwire0->0.0016}
2*Ipr/.Solve[(80ppm*15*2+0.5ppm*1000)*Ipr==%,Ipr][[1]]/.ppm->(10^(-6))

Tanaka - kun' s result with reducing IM temperature to make the TM temperature 20K

4*Integrate[κ0*π*(((dwire0/2))^2)/lsus,{Tsus,7,20}]/.{lsus->0.35,dwire0->0.0016}