A Z-pinch wire array load voltage measuring device and method

Abstract

The invention relates to a device for measuring the load voltage of a Z-pinch wire array and a method for measuring the load voltage of a Z-pinch wire array based on the device. The voltage measurement device provided by the present invention includes a capacitive voltage divider and a current differential probe installed on the anode plate; the capacitive voltage divider includes a copper electrode, a ground electrode, an integrating resistor and a voltage signal output port; the copper electrode and the ground electrode pass through The insulating film forms a low-voltage capacitor; the copper electrode and the cathode plate form a high-voltage capacitor; the integrating resistor is connected to the low-voltage capacitor through a wire; the current differential probe is used to directly obtain the current differential signal in the loop. The present invention can calculate the load voltage of the Z-pinch wire array by installing a capacitive voltage divider and a current differential probe in combination with the ampere loop law, and the calculation result is reasonable and accurate.

Description

technical field [0001] The invention relates to a Z-pinch wire array load voltage measuring device and a voltage measuring method based on the device. Background technique [0002] The high-power Z-pinch is to use the metal wire array load to discharge under high current to form plasma, implode to the center under the action of strong magnetic field, and finally radiate strong X-rays. Z-pinch technology can be used to carry out research related to inertial confinement fusion, weapon physics simulation, plasma radiation, laboratory astrophysics, high energy density physics, etc. [0003] So far, there are still many basic physical problems in the field of Z-pinch research that have not been fully elucidated. Among them, the voltage measurement method during the Z-pinch process of the wire array load has not yet been completely resolved. This is because the load voltage measurement is affected by various unfavorable factors such as small measurement space (~1cm), high voltag...

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Problems solved by technology

[0006] Based on the above experimental results, it can be seen that as far as the current situation is concerned, the technology of using stacked resistor dividers to measure the load voltage of wire arrays is still in the experimental stage, and the means are not very mature. No matter the measurement results on the Saturn device or the MAGPIE device There are parts that are difficult to explain, which also shows that load voltage measurement is still very challenging

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