Z-pinching load structure with positive polarity radial electric field

Abstract

The invention relates to a Z-pinching load structure with a positive polarity radial electric field. The Z-pinching load structure has a different load negative electrode structure from the traditional load structure. The Z-pinching load structure is improved on the basis of the conventional load negative electrode with the cylindrical structure; the load negative electrode structure is changed into a column-barrel-shaped structure which extends towards a positive electrode; after the load negative electrode is changed into the column-barrel-shaped structure, the radial electric field on the surface of metal wires is mainly affected by the load negative electrode; and the load negative electrode is lower in potential, so that the direction of the radial electric field is changed into the direction from the surface of the metal wires to the load negative electrode so as to restrain the electron emission on the surface of the metal wires in the early period, slow down the formation of corona plasma, prolong the ohmic heating time of the current in the interior of the metal wires, and weaken the adverse influences on the implosion process and even the X-ray radiation from the nuclear-coronal structure.

Description

technical field [0001] The invention belongs to experimental devices, in particular to a Z pinch load structure. Background technique [0002] In Z-pinch experiments, pulsed power sources are usually discharged with negative polarity. In the traditional load structure (G.S.Sarkisov, S.E.Rosenthal, K.W.Struve, T.E.Cowan, R.Presura, A.L.Astanovitskiy, A.Haboub, and A.Morozov.Physics of Plasmas.14,112701.(2007)), the load cathode and The geometry of the loaded anode can be simplified as two metal cylinders placed opposite each other, and the wire array is located between the two cylinders. During pulse discharge, electrons flow back to the load anode along the load cathode through the metal wire, and finally reach the anode of the pulse power device through the return column. Under the constraint of the above geometric structure, in the early stage of current rise, the surface of the metal wire must be affected by the negative polarity radial electric field, which will cause ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a Z-pinch load structure with a positive radial electric field, which can change the electric field distribution on the surface of the wire and solve the problem of insufficient energy deposition inside the wire

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