摘要
能源材料光束线站是上海光源首条软、硬X射线相结合的合支光束线站,两个插入件光源采用Canted模式,光束夹角仅为2 mrad。前端内放置偏转镜箱,软线经过偏转镜后光束偏转2.4°,软、硬线交叉之后分开。该前端要承担高达7.81 kW的热负载,而且在前端内部两条光束共用设备。为了实现实验站对两条光束的独立控制,前端的设备结构与一般插入件前端设备不同,需要采用全新的结构,与其它只有一个通光孔径的插入件前端关键设备相比,此前端关键设备设计有两个通光孔径。目前,该前端已经安装完成,并且结构和布局完全满足光束线站的技术要求。
[Background]The current beam lines structure design cannot satisfy the requirement of the first combined beamline station with soft and hard X-rays in Shanghai synchrotron radiation facility(SSRF).[Purpose]This study aims to design the super-small angle Canted front-end at SSRF to support a wide-energy-range experimental platform with multiple methods for energy material research.[Methods]Two undulators,elliptical polarization undulator(EPU)and in vacuum undulator(IVU),were employed in the wide-range energy material beamline(E-Line)that contains soft and hard X-rays located in the straight line with a Canted angle of 2 mrad.The separated plane mirror,SM1,was designed to be located at the front-end.After SM1,the soft line was deflected 2.4°,allowing two dedicated beam lines to be set.[Results]The two beam lines share the front-end components,and can independently operate the components of the front-end.The front-end of E-Line adopt a new structure and layout different from the standard ones that can handle the heat load up to 7.81 kW.Compared with the key equipment of other common insert device front-end with only one through-light aperture,the one of this front-end was designed with two through-light apertures.[Conclusion]The installation of E-Line front-end has been accomplished,and the structure and layout fully satisfy the technical requirements of the beamline.
作者
贾丹丹
张敏
李勇军
吴帅
金利民
薛松
JIA Dandan;ZHANG Min;LI Yongjun;WU Shuai;JIN Limin;XUE Song(Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201210,China;Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China)
出处
《核技术》
CAS
CSCD
北大核心
2019年第9期1-6,共6页
Nuclear Techniques
基金
国家自然科学基金(No.11805262)资助~~
