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

A pre-pulse, laser device technology, applied in circuits, electrical components, phonon exciters, etc., can solve the problems of inability to quickly separate the plasma from the tube wall, uneven breakdown of the channel, and tube wall ablation, etc. The effect of reduced wall ablation, reduced background radiation, and easy maintenance

CN101115345BInactive Publication Date: 2011-04-20HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2011-04-20
Estimated Expiration
Not applicable · inactive patent

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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.
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Description

technical field

[0001] The present 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, which provides energy for the next-level circuit. Second, the energy transmission part. 3. Capillary and pre-pulse circuit: the capillary is filled with a certain pressure of gas or metal vapor, first ionized by the pre-pulse into +1, +2 valence uniform plasma; under the action of the subsequent fast pulse and large current (main pulse), Pinch to form a high-density, high-temperature, high-ionization, and uniform plasma column. Under appropriate conditions, the electron collision process in it forms the inversion of the number of particles of the corresponding energy level, which can produce soft X-ray lasing . 4. Vacuum and detection system.

[0003] The transmission efficien...

Examples

specific Embodiment approach 1

[0010] Specific embodiment one: this embodiment is described in conjunction with Fig. 4, Fig. 5, Fig. 6, this specific embodiment consists of a fast high-voltage electrical pulse Marx generator 1, a main switch 2, a Blumlein transmission line 3, an inherent pre-pulse isolation switch 4, Pre-pulse generator 5, isolation inductor 6, capillary and X-ray test assembly 7;

[0011] The electric 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 intrinsic pre-pulse isolation switch 4 The input end of the pre-pulse isolation switch 4 and one end of the isolation inductance 6 are all connected to the electric pulse input end (cathode) of the capillary and X-ray test assembly 7, and the other end of the isolation inductance 6 is connecte...

specific Embodiment approach 2

[0017] Specific embodiment 2: This embodiment is described in conjunction with FIG. 4 . In this embodiment, a capacitor C is added on the basis of the specific embodiment 1. One end of the capacitor C is connected to the input end of the intrinsic 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.

[0018] This embodiment has the best isolation effect on the inherent pre-pulse, and can completely ensure the stable operation of the capillary discharge device, and at the same time obtain a good main pulse current waveform, which further increases the amplitude of the laser peak.

[0019]Working principle: when the system is working, the pre-pulse generator 5 applies the pre-pulse to the cathode of the capillary and X-ray test assembly 7 through the isolation inductance 6, and at the same time triggers the fast high-voltage electric pulse Marx generator 1 through a delay circuit Wo...