Experimental Study of Magnetic Flux Transfer at the Hyperbolic Neutral Point

摘要: A laboratory study is reported herein of a plasma flow process sometimes referred to as the severing and reconnecting magnetic field lines at hyperbolic or X‐type neutral point. It found that pinch develops point resulting in compression. The Ohmic electric current enables line reconnection take place through resistive diffusion. rate substantially increased by reduction size region effected adjustment pairs stationary slow mode shocks manner similar deduced described Petschek. Strong evidence presented for this wave‐dominated configuration. However, it becomes progressively concentrated along shock loci until eventually critical density reached marked sudden large anomalous increase resistivity predicted Friedman Hamberger. At wave‐assisted diffusion terminated there observed: (1) cutoff current, (2) field, (3) corresponding rate, (4) generation system amplitude fast‐mode waves. waves, bearing onset turbulence, effect rapid gross redistribution flux among cells defined separatrix, blow off downstream. raises possibility energy dissipation acceleration particles high energy.