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Large-aperture prism-array lens for high-energy X-ray focusing

文献类型：期刊论文

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作者Zhang WW(张伟伟); Liu J(刘静); Chang GC(常广才); Shi Z(施展); Li M(李明); Zhang XW(张晓伟); Yi FT(伊福廷); Liu P(刘鹏); Sheng WF(盛伟繁); Zhang, WW
刊名JOURNAL OF SYNCHROTRON RADIATION ; JOURNAL OF SYNCHROTRON RADIATION
出版日期2016 ; 2016
卷号23页码:1091-1096
关键词X-ray optics X-ray optics refractive lenses prism-array lenses LIGA technology knife-scan method refractive lenses prism-array lenses LIGA technology knife-scan method
ISSN号1600-5775
DOI10.1107/S1600577516011152 ; 10.1107/S1600577516011152
通讯作者刘静 ; 刘静 ; 常广才 ; 常广才
文献子类Article
英文摘要A new prism-array lens for high-energy X-ray focusing has been constructed using an array of different prisms obtained from different parabolic structures by removal of passive parts of material leading to a multiple of 2 pi phase variation. Under the thin-lens approximation the phase changes caused by this lens for a plane wave are exactly the same as those caused by a parabolic lens without any additional corrections when they have the same focal length, which will provide good focusing; at the same time, the total transmission and effective aperture of this lens are both larger than those of a compound kinoform lens with the same focal length, geometrical aperture and feature size. This geometry can have a large aperture that is not limited by the feature size of the lens. Prototype nickel lenses with an aperture of 1.77 mm and focal length of 3 m were fabricated by LIGA technology, and were tested using CCD camera and knife-edge scan method at the X-ray Imaging and Biomedical Application Beamline BL13W1 at Shanghai Synchrotron Radiation Facility, and provided a focal width of 7.7 mu m and a photon flux gain of 14 at an X-ray energy of 50 keV.; A new prism-array lens for high-energy X-ray focusing has been constructed using an array of different prisms obtained from different parabolic structures by removal of passive parts of material leading to a multiple of 2 pi phase variation. Under the thin-lens approximation the phase changes caused by this lens for a plane wave are exactly the same as those caused by a parabolic lens without any additional corrections when they have the same focal length, which will provide good focusing; at the same time, the total transmission and effective aperture of this lens are both larger than those of a compound kinoform lens with the same focal length, geometrical aperture and feature size. This geometry can have a large aperture that is not limited by the feature size of the lens. Prototype nickel lenses with an aperture of 1.77 mm and focal length of 3 m were fabricated by LIGA technology, and were tested using CCD camera and knife-edge scan method at the X-ray Imaging and Biomedical Application Beamline BL13W1 at Shanghai Synchrotron Radiation Facility, and provided a focal width of 7.7 mu m and a photon flux gain of 14 at an X-ray energy of 50 keV.
WOS关键词REFRACTIVE LENSES ; DIFFRACTION ; FABRICATION
语种英语 ; 英语
WOS记录号WOS:000382299500006 ; WOS:000382299500006
源URL[http://ir.ihep.ac.cn/handle/311005/260328]  
专题高能物理研究所_多学科研究中心
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714		 Zhang WW,Liu J,Chang GC,et al. Large-aperture prism-array lens for high-energy X-ray focusing, Large-aperture prism-array lens for high-energy X-ray focusing[J]. JOURNAL OF SYNCHROTRON RADIATION, JOURNAL OF SYNCHROTRON RADIATION,2016, 2016,23, 23:1091-1096, 1091-1096.
APA 张伟伟.,刘静.,常广才.,施展.,李明.,...&Sheng, WF.(2016).Large-aperture prism-array lens for high-energy X-ray focusing.JOURNAL OF SYNCHROTRON RADIATION,23,1091-1096.
MLA 张伟伟,et al."Large-aperture prism-array lens for high-energy X-ray focusing".JOURNAL OF SYNCHROTRON RADIATION 23(2016):1091-1096.

入库方式： OAI收割

来源：高能物理研究所

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