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CAS OpenIR  > 中科院上海应用物理研究所2011-2017年  > 期刊论文
题名:
Large-aperture prism-array lens for high-energy X-ray focusing
作者: Zhang, WW; Liu, J; Chang, GC; Shi, Z; Li, M; Ren, YQ; Zhang, XW; Yi, FT; Liu, P; Sheng, WF
刊名: JOURNAL OF SYNCHROTRON RADIATION
出版日期: 2016
卷号: 23, 页码:1091-1096
关键词: X-ray optics ; refractive lenses ; prism-array lenses ; LIGA technology ; knife-scan method
DOI: 10.1107/S1600577516011152
通讯作者: Liu, J ; Chang, GC (reprint author), Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China.
文章类型: 期刊论文
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.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000382299500006
ISSN号: 1600-5775
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/26559
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Zhang, WW,Liu, J,Chang, GC,et al. Large-aperture prism-array lens for high-energy X-ray focusing[J]. JOURNAL OF SYNCHROTRON RADIATION,2016-01-01,23:1091-1096.
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文件名: Large-aperture prism-array lens for high-energy X-ray focusing.pdf
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