Time-resolved Single Crystal X-ray Laue Diffraction Target Device

Abstract

The invention discloses a time-resolved single crystal X-ray Laue diffraction target device, which comprises a hollow imaging box, and the opposite ends of the imaging box are respectively provided with a focusing and aiming assembly and an X-ray Laue diffraction target assembly; the imaging box is provided with an optical The through hole, the focusing and aiming assembly is closed and connected outside the optical through hole; the X-ray Laue diffraction target assembly is at least provided with a diffraction hole and a backlight X-ray target, and the backlight X-ray target is located in the incident light path outside the diffraction hole and is made of multi-layer metal The metal elements of the multilayer metal film correspond to the K-series or L-series radiation photons with similar energies; among them, the diffraction holes, optical through holes and focusing and aiming components form a complete optical imaging path. The invention has the characteristics of high timing synchronization precision and good time resolution, and is sensitive to atomic-scale microstructure changes.

Description

technical field [0001] The invention relates to the technical field of single crystal X-ray diffraction diagnosis, in particular to a time-resolved single crystal X-ray Laue diffraction target device. Background technique [0002] In the process of high-speed impact or detonation, the internal microscopic atomic structure of some single crystal materials will undergo certain plastic deformation, which is manifested as the generation of dislocations or twins. With the proliferation of microscopic defects such as dislocations or twins in single crystal materials With evolution, the macroscopic mechanical properties of single crystal materials will also change, affecting their subsequent service performance. [0003] As a relatively simple model system, the microscopic mechanism of internal plastic deformation of single crystal material has laid an important foundation for further research on the microscopic mechanism of plastic deformation of powder crystal material. In relat...

AI Technical Summary

Problems solved by technology

In related research fields such as explosion mechanics and engineering materials, there is currently no diagnostic technology that can effectively realize the in-situ observation of the microscopic mechanism of the plastic deformation or phase transition process of single crystal materials under extreme conditions such as impact. Therefore, a real-time in-situ observation A diagnostic device or method for the microscopic mechanism of plastic deformation or phase transition process of single crystal materials under extreme conditions such as impact is particularly necessary

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