双曲面弯晶X射线分析仪器及应用进展  

Doubly curved crystal X-ray analytical instrument and application progress

作　　者：程大伟[1,2] 刘明博 沈学静 贾云海[1,2] CHENG Dawei;LIU Mingbo;SHEN Xuejing;JIA Yunhai(Central Iron&Steel Research Institute,Beijing 100081,China;NCS Testing Technology Co.,Ltd.,Beijing 100094,China)

机构地区：[1]钢铁研究总院,北京100081 [2]钢研纳克检测技术股份有限公司,北京100094

出　　处：《冶金分析》2022年第1期10-17,共8页Metallurgical Analysis

基　　金：国家重点研发计划(2017YFF0108900)。

摘　　要：弯晶X射线技术历经近百年发展,已成为当今X射线荧光光谱(XRF)技术的主要研究方向之一。始于晶体X射线衍射技术,几代学者前仆后继从概念设想、理论推导,推动着弯晶X射线技术的进步;成于人工晶体和曲面晶体加工工艺的成熟,从平面晶体、柱面晶体、双曲面晶体到全聚焦双曲面晶体;拓于微探针分析、实验室能谱仪器、临床成像等应用,双曲面全聚焦弯晶能够将照射到晶体上、满足Bragg定律和罗兰圆结构的X射线单色化并全聚焦,弯晶X射线技术和仪器性能获得了本质提升。文章回顾了弯晶X射线技术和仪器的研制和应用历程,追寻前人在晶体及仪器研制方面的宝贵经验,探讨了未来弯晶X射线仪器的发展方向。The curved crystal X-ray technique has been developed for near a hundred years, and it has become one of major research directions in X-ray fluorescence spectrometry(XRF) so far. It was started in the crystal X-ray diffraction technique. Generations of scholars promoted the advances in curved crystal X-ray technology from conceptual design to theoretical derivation. It was succeeded in the maturity of processing technic for artificial crystal and curved crystal, including flat crystal, cylindrical crystal, doubly curved crystal and fully focused curved crystal. It was extended in the application of microprobe analysis, laboratory energy spectrum instrument and clinical imaging, etc.Doubly curved fully focused crystal could monochromatize and focus the X-ray which was irradiated on the crystal, obeying Bragg Law and Loran circle structure. The curved crystal X-ray technology and instrument performance were improved essentially. The paper reviewed the development and application history of curved crystal X-ray technology and instrument. The valuable experience of predecessors in development of crystal and instruments was pursued. The development direction of curved crystal X-ray instruments in future was explored.

关 键 词：弯晶X射线 晶体衍射 曲面晶体 单色 全聚焦 

分 类 号：O657.34[理学—分析化学]