文章信息/Info

Title:

Applications of Synchrotron Radiation Based Techniques in Nuclear Materials Research

文章編號:

16743962(2021)02012010

作者:

李時磊; 王沿東; 王勝杰; 徐寧; 李陽

（北京科技大學 新金屬材料國家重點實驗室，北京 100083）

Author(s):

LI Shilei; WANG Yandong; WANG Shengjie; XU Ning; LI Yang

(State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China)

關鍵詞:

同步輻射; 核材料; X射線衍射; 小角X射線散射; X射線成像

Keywords:

synchrotron radiation;  nuclear materials;  X-ray diffraction;  small angle X-ray scattering;  X-ray imaging

分類號:

O434.19

DOI:

10.7502/j.issn.1674-3962.202009023

文獻標志碼:

A

摘要:

先進同步輻射光源具有高通量、高相干性、高脈沖重復率等優點，將基于其的X射線衍射、小角散射、成像、譜學等表征方法與原位環境（如溫度場、應力場、氣氛、溶液介質等）實驗裝置配合，可為系統表征與評價核能系統用材料與部件的服役行為和損傷機制提供重要技術手段。核材料在高溫/應力/介質/中子輻照等復雜多場環境下的服役損傷行為長期以來一直是學術界和工業界關注的焦點，其中多場耦合作用下材料微觀結構演化、微觀力學行為及微觀損傷機制是亟需解決的關鍵科學問題。分別從同步輻射高能X射線衍射、微束衍射技術、小角散射技術、成像技術、譜學技術等幾個方面，介紹了同步輻射表征技術在典型核材料研究中的應用。最后基于國內外在核材料領域的研究進展，展望了同步輻射技術在核材料研究中的未來發展方向。

Abstract:

The advanced synchrotron radiation source, with the advantages of high flux, high coherence, high pulse repetition rate, etc., provides characterization methods such as X-ray diffraction, small-angle scattering, imaging, and spectroscopy. The in-situ environmental (such as temperature field, stress field, gas, solution medium, etc.) equipment combined with these characterization methods are important technical means for the measurement and evaluation of the service behavior and damage mechanism of materials and components used in nuclear energy systems. The damage behavior of nuclear materials under complex multi�瞗ield environments such as temperature/stress/medium/neutron irradiation has long been the focus of the academic and industrial circles. The microstructure evolution, micromechanical behavior and damage mechanism of nuclear materials under the coupling action of multiple fields are the key scientific issues. This paper reviews the application of synchrotron radiation characterization techniques in the research of typical nuclear materials from several aspects, such as high�瞖nergy X-ray diffraction, microbeam diffraction, small-angle scattering, imaging/tomography, and spectroscopy. Finally, the future development directions of synchrotron radiation technology in nuclear materials research are prospected.