Capillary discharging X-laser device using blumlein line and eliminating prepulse

A laser device and pre-pulse technology, which is applied to lasers, laser components, circuits, etc., can solve the problems of inability to quickly separate the plasma from the tube wall, uneven breakdown channels, tube wall ablation, etc., and reach the tube wall The effect of reduced ablation amount, reduced background radiation, and easy maintenance

Inactive Publication Date: 2008-01-30
HARBIN INST OF TECH
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the inherent pre-pulse voltage brought by the use of the Blumlein transmission line between the Marx generator and the load (capillary) in the existing high-voltage, large-current, and fast-pulse discharge technology, which will cause abnormalities near the capillary wall. T

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  • Capillary discharging X-laser device using blumlein line and eliminating prepulse
  • Capillary discharging X-laser device using blumlein line and eliminating prepulse
  • Capillary discharging X-laser device using blumlein line and eliminating prepulse

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specific Embodiment approach 1

[0009] Specific embodiment 1: This embodiment is described with reference to Fig. 4, Fig. 5, and Fig. 6. This embodiment consists of a fast high-voltage electric pulse Marx generator 1, a main switch 2, a Blumlein transmission line 3, and an inherent pre-pulse isolation switch 4, Pre-pulse generator 5, isolation inductor 6, capillary tube and X-ray test assembly 7;

[0010] The electrical pulse output end of the fast high-voltage electrical pulse Marx generator 1 is connected to the input end of the main switch 2, the output end of the main switch 2 is connected to the input end of the Blumlein transmission line 3, and the output end of the Blumlein transmission line 3 is connected to the inherent pre-pulse isolation switch 4 The input end of the inherent pre-pulse isolation switch 4 and one end of the isolation inductor 6 are connected to the capillary and the electrical pulse input end (cathode) of the X-ray test assembly 7, and the other end of the isolation inductor 6 is conne...

specific Embodiment approach 2

[0016] Specific embodiment 2: This embodiment will be described with reference to FIG. 4. This embodiment adds a capacitor C based on the specific embodiment 1. One end of the capacitor C is connected to the input terminal of the inherent pulse isolation switch 4, and the other end of the capacitor C is connected to the ground . The capacitance value of the capacitor C is 100pf~900pf.

[0017] This embodiment has the best isolation effect on the inherent pre-pulse, and can completely guarantee the stable operation of the capillary discharge device, and at the same time obtain a good main pulse current waveform, so that the amplitude of the laser spike is further improved.

[0018] Working principle: When the system is working, the pre-pulse generator 5 adds the pre-pulse to the cathode of the capillary tube and the X-ray test assembly 7 through the isolation inductor 6, and at the same time, it can trigger the fast high-voltage electric pulse Marx generator 1 through a delay circu...

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Abstract

A capillary discharging X ray laser device adopting the blumlein line and eliminating intrinsic pre-pulse relates to the capillary discharging X ray laser technical field. The invention solves defects that the intrinsic pre-pulse voltage can burn through vessel wall when a Blumlein transmission line is used between the existing Marx generator and the loads (capillary). The output end of a rapid high voltage electric pulse Marx generator (1) is connected with the input end of an intrinsic pulse insulation switch (4) through a main switch (2) and a Blumlein transmission line (3), the output end of the intrinsic pulse insulation switch (4) and one end of an insulation inductor (6) are connected with the electric pulse input end of the capillary and an X ray test assembly (7), another end of the insulation inductor (6) is connected with the output end of a pre-pulse generator (5). The invention prevents the intrinsic pre-pulse voltage of the Blumlein transmission line is passed, so the harm of the capillary wall ablation and the destroy of Z-pinch plasma are eliminated, so the invention can effectively output the laser.

Description

Technical field [0001] The invention relates to the field of capillary discharge X-ray laser technology. Background technique [0002] The existing capillary discharge X-ray laser system consists of four parts: 1. Energy storage part: It is a fast high-voltage electric pulse Marx generator that provides energy for the next-stage circuit. 2. Energy transmission part. 3. Capillary tube and pre-pulse circuit: The capillary tube is filled with gas or metal vapor at a certain pressure, and the pre-pulse ionizes into a uniform plasma with +1 and +2 valence; under the action of the subsequent fast pulse high current (main pulse), Pinch to form a high-density, high-temperature, high-ionization, and uniform plasma column. Under appropriate conditions, the electron collision process forms the particle number inversion of the corresponding energy level, which can produce soft X-ray lasing . 4. Vacuum and detection system. [0003] The transmission efficiency between the Marx generator and t...

Claims

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Application Information

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IPC IPC(8): H05G1/22H01S3/00
Inventor 王骐赵永蓬程元丽朱秋石栾伯晗谢耀杨大为
Owner HARBIN INST OF TECH
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