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

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	Large-aperture prism-array lens for high-energy X-ray focusing
	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
	2016
卷号	23 页码:1091-1096
关键词	X-ray optics refractive lenses prism-array lenses LIGA technology knife-scan method
ISSN号	1600-5775
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.
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
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/26559]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
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	Zhang, WW.,Liu, J.,Chang, GC.,Shi, Z.,Li, M.,...&Sheng, WF.(2016).Large-aperture prism-array lens for high-energy X-ray focusing.JOURNAL OF SYNCHROTRON RADIATION,23,1091-1096.
MLA	Zhang, WW,et al."Large-aperture prism-array lens for high-energy X-ray focusing".JOURNAL OF SYNCHROTRON RADIATION 23(2016):1091-1096.