STABILITY OF THE FLUX-FLOW STATE IN SUPERCONDUCTING NbTi STRIPS

Abstract
Experiments concerning termination of the flux‐flow state have been performed on bare NbTi strips. For these strips of low heat capacity, take‐offs occurred at powers less than the maximum heat flux in nucleate boiling. We conclude that take‐off resulted from the simultaneous occurrence of a normal zone (caused by a local heat transfer fluctuation) and a current equal to or greater than the minimum propagating current.