Adaptive 2-hoop fibre array load and its preparing process

Abstract

The invention discloses a self-adapting typed Z-pinch wire matrix load and its preparing method. Fixing connecting spring, support bar, key-groove and key-bar etc. between the asistant location plateand localizer of the wire matrix load makes the wire matrix load automatically adapt change of space between electrodes of target. The invention solves several issues of the wire matrix load preferably such as deformation, difficult to install and improves performance of electric contact between load wire and localizer. It is convenient for assembly, adjustment, storage and transport of the wire matrix load.

Description

1. Technical field [0001] The invention belongs to the field of pinch devices for generating plasma, and in particular relates to an adaptive Z-pinch wire array load and a preparation method. 2. Background technology [0002] There are many structures and types of wire array loads used in Z-pinch physics experiments, including single wire load and multi-wire load. The wire arrays are further divided into single-layer cylindrical wire arrays and coaxial multi-layer cylindrical wire arrays. Regardless of the structure of the wire array load, they are all composed of load wires with uniform diameters arranged according to the requirements of physical experiments. In the Z-pinch physical experiment site, the wire array load is fixed on the cathode and anode electrodes, and a rapid inward pinch is generated under the action of high current to form a uniform plasma shell. However, since the target chamber is evacuated, it is located in between The distance between the negative an...

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Problems solved by technology

In the Z-pinch physical experiment site, the wire array load is fixed on the cathode and anode electrodes, and a rapid inward pinch is generated under the action of high current to form a uniform plasma shell. However, since the target chamber is evacuated, it is located in between The distance between the negative and positive electrodes will change, and the load wire itself is very thin and soft (diameter<100μm), unable to support and overcome this change, so that the load wire array located between the negative and positive electrodes bends and deforms, destroying the wire Specific distribution of array-loaded filaments, affecting Z-pinch physical experiment results

In order to overcome the adverse effects caused by this change, most of the load wires are suspended from each load wire at the lower end of the load wire array, and the other end is fixed on the electrode, so that each load wire is tightened under the action of the weight to ensure that the wire The shape of the array remains unchanged (Physics of Plasmas, 1999, 6(4): 1270~1293). This method is only suitable for the target chamber structure where the positive and negative electrodes are arranged in the vertical direction. If the electrodes are arranged in other directions, it has two Some shortcomings, first, it is not applicable to the load of multi-filament cylindrical wire array and other non-planar distribution wire arrays; second, the contact resistance is large, and at the same time, there is deformation of the wire array caused by the change of electrode spacing

There are also many difficulties during the assembly, commissioning, storage and transportation of wire array loads

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