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 a focusing aiming assembly and an X-ray Laue diffraction target assembly are arranged at the two opposite ends of the imaging box respectively. The imaging box is provided with an optical through hole, and the focusing aiming assembly is connected outside the optical through hole in a closed mode. The X-ray Laue diffraction target assembly is at least provided with a diffraction hole and a backlight X-ray target, the backlight X-ray target is located in an incident light path range on the outer side of the diffraction hole and is made of multiple layers of metal films, and K-series or L-series radiation photon energy corresponding to metal elements of the multiple layers of metal films is similar. The diffraction hole, the optical through hole and the focusing aiming assembly form a complete optical imaging path. The device has the characteristics of high time sequence synchronization precision and good time resolution, and is sensitive to the change of a microstructure of an atomic scale.

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

Images