keyword=coolant increase to 21g/s, operating temperature to 7.4K for high current test.
increases coolant flwo from 14.3 g/s (J-T from 54.3) to 21g/s
(J-T = 63%). HP was 230W, now 450 W (when T already chande to 7.1K).
Changed operating temperature from 7.0K to 7.4 K, pressure changed
from 193 psi to 220 psi. HP= 496W