Large-aperture prism-array lens for high-energy X-ray focusing | |
Zhang WW(张伟伟); Zhang XW(张晓伟); Li M(李明); Shi Z(施展); Chang GC(常广才); Sheng, WF; Liu, P; Yi, FT; Zhang, XW; Ren, YQ | |
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 |
DOI | 10.1107/S1600577516011152 |
通讯作者 | 刘静 ; 常广才 |
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. |
语种 | 英语 |
WOS记录号 | WOS:000382299500006 |
内容类型 | 期刊论文 |
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,Zhang XW,Li M,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.,张晓伟.,李明.,施展.,常广才.,...&刘静.(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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