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Three-dimensional measurement system for matter state information of laser fusion target capsule

A technology of stereo measurement and laser fusion, which is used in devices using optical methods, etc.

Active Publication Date: 2016-12-07
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the existing VISAR devices at home and abroad are mainly aimed at diagnosing the state of material motion on 1-dimensional lines and 2-dimensional surfaces to varying degrees, and can only provide parameters for the material motion model on the plane.

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  • Three-dimensional measurement system for matter state information of laser fusion target capsule
  • Three-dimensional measurement system for matter state information of laser fusion target capsule
  • Three-dimensional measurement system for matter state information of laser fusion target capsule

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with embodiment and accompanying drawing.

[0033] A three-dimensional measurement system for state information of a laser fusion target pellet, comprising two parts: an experimental target and a diagnostic optical path.

[0034] Such as figure 1 As shown, this embodiment takes an indirect drive target as an example. The experimental target includes a target cavity 1a and a spherical target pellet 1 arranged in the target cavity 1a. A pulsed laser beam with a certain timing and shape is incident through the openings at both ends of the target cavity 1a. On the inner wall of the target cavity 1a, X-rays are generated to ablate the ablation material outside the spherical target pellet 1, and then drive the internal fuel layer to compress, and finally reach a state where fusion can occur. One end of the target cavity 1a and the side wall of the spherical target pellet 1 is opened There is a conical diagn...

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Abstract

The invention discloses a three-dimensional measurement system for matter state information of a laser fusion target capsule, and the system comprises an experimental target and a diagnosis optical path. The experimental target comprises a spherical target capsule and a three-dimensional mirror surface disposed at the center of the spherical target capsule. The diagnosis optical path comprises at least two parallel refit linear VISAR systems, and each refit linear VISAR system comprises a system light splitter and two groups of etalon interference systems disposed at the rear end of the system light splitter. Detection laser reflected by the three-dimensional mirror surface is divided by each system light splitter into two different branches which respectively enter the corresponding two groups of etalon interference systems, and then is divided into two interference branches through the system light splitter and reflectors with etalons. Each interference branch passes through a Dove prism to be converted and then is imaged through a streak camera. Through designing a front-end detection device for the spherical target capsule and refitting a conventional linear imaging VISAR system, the system can achieve the VISAR measurement of the speed of an impact wave at any angle in a three-dimensional space of the internal surface of the spherical target capsule, such as the matter state information.

Description

technical field [0001] The invention belongs to the field of laser interference diagnosis in inertial confinement fusion, and in particular relates to a three-dimensional measurement system for state information of laser fusion target pellets. Background technique [0002] In the application field of nuclear energy science, fusion between atomic nuclei will generate a large amount of energy per unit mass of atoms. This process can be used as a source of energy in the future. Laser fusion has the characteristics of cleanness and controllability, and is one of the methods for obtaining energy. . [0003] Laser inertial confinement fusion mainly uses dozens or even hundreds of lasers to directly or indirectly heat the surface of the pellet. In a very short time, the generated ablation pressure drives the high-temperature, high-density plasma near the ablation surface outward. Injection; on the other hand, due to the relationship between action and reaction, a converging shock ...

Claims

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Application Information

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IPC IPC(8): G01P3/36G01P3/38
CPCG01P3/36G01P3/38
Inventor 王峰吴宇际江少恩徐涛理玉龙彭晓世杨东梅雨魏惠月查为懿刘祥明
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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