用于中子衍射应力织构分析的可切换单色器系统
By employing a multi-axis motion-integrated switchable monochromator system in a neutron diffraction spectrometer, the problem of efficiently switching and controlling multiple monochromators in a small space was solved. This enabled the switching between high-resolution and high-neutron-flux measurement modes, meeting the testing requirements of different materials and improving analytical accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI JIAOTONG UNIV
- Filing Date
- 2023-03-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing neutron diffraction spectrometers cannot efficiently switch and control multiple monochromators within a small space, which makes it impossible to meet the testing requirements of different materials, especially the requirements of high resolution for metallic materials and high neutron flux for ceramic materials.
A switchable monochromator system is designed by integrating multi-axis motions such as angular rotation, angular tilt, and horizontal displacement, combined with a high-precision encoder. The system includes an angular rotation stage, an angular tilt stage, and a horizontal displacement stage, and can be equipped with different types of monochromators, such as a dual-focusing perfect single-crystal silicon monochromator and a highly oriented pyrolytic graphite monochromator, to achieve switching between high resolution and high neutron flux.
High-precision switching and motion control of the monochromator were achieved within a relatively small shielded space, meeting the testing requirements of different materials and improving the accuracy and efficiency of neutron diffraction stress texture analysis.
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Figure CN117665022B_ABST