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Large-aperture prism-array lens for high-energy X-ray focusing
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; Liu, J; Chang, GC; Shi, Z; Li, M; Ren, YQ; Zhang, XW; Yi, FT; Liu, P; Sheng, WF
2016
发表期刊JOURNAL OF SYNCHROTRON RADIATION
卷号23页码:1091-1096
通讯作者刘静 ; 常广才
文章类型期刊论文
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.
关键词X-ray optics refractive lenses prism-array lenses LIGA technology knife-scan method
DOI10.1107/S1600577516011152
关键词[WOS]REFRACTIVE LENSES ; DIFFRACTION ; FABRICATION
语种英语
WOS类目Instruments & Instrumentation ; Optics ; Physics, Applied
WOS记录号WOS:000382299500006
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260328
专题多学科研究中心
粒子天体物理中心
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[J]. JOURNAL OF SYNCHROTRON RADIATION,2016,23:1091-1096.
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.
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