COOLING LIMITS FOR SOLENOID STABILIZATION IN THE VICINITY OF THE He4lgr;hyphen;POINT

摘要

The superfluid He II transition to the normal state and the critical dissipation rates for nearhyphen;isothermal solenoid operation have been measured near the lgr; point. In contrast to the superfluid quenching limit, the solenoid cooling stability limit was found to be finite at the lgr; point.