Beryllium parabolic refractive x-ray lenses

被引：6

作者：

Lengeler, B ^{[1
]}

Schroer, CG ^{[1
]}

Kuhlmann, M ^{[1
]}

Benner, B ^{[1
]}

Günzler, TF ^{[1
]}

Kurapova, O ^{[1
]}

Zontone, F ^{[1
]}

Snigirev, A ^{[1
]}

Snigireva, I ^{[1
]}

机构：

[1] Univ Aachen, Inst Phys 2, D-52056 Aachen, Germany

来源：

DESIGN AND MICROFABRICATION OF NOVEL X-RAY OPTICS II | 2004年 / 5539卷

关键词：

synchrotron radiation; refractive x-ray lenses; beryllium; x-ray imaging; x-ray microscopy; tomography; x-ray microprobe;

D O I：

10.1117/12.559743

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Parabolic refractive x-ray lenses are novel optical components for the hard x-ray range from about 5 keV to about 120 keV. They focus in both directions. They are compact, robust, and easy to align and to operate. They can be used like glass lenses are used for visible light, the main difference being that the numerical aperture NA is much smaller than 1 (of order 10(-4) to 10(-3)). Their main applications are in micro- and nanofocusing, in imaging by absorption and phase contrast. In combination with tomography they allow for 3-dimensional imaging of opaque media with sub-micrometer resolution. Finally, they can be used in speckle spectroscopy by means of coherent x-ray scattering. Beryllium as lens material strongly enhances the transmission and the field of view as compared to aluminium. With increased NA the lateral resolution is also considerably improved with Be lenses. References to a number of applications are given.

引用

页码：1 / 9

页数：9

共 25 条

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BIONTA RM, 2000, UCRLID137222

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