Refractive x-ray focusing with modified phonograph records

被引：1

作者：

Cederström, B ^{[1
]}

Cahn, RN ^{[1
]}

Danielsson, M ^{[1
]}

Lundqvist, M ^{[1
]}

Nygren, DR ^{[1
]}

机构：

[1] Royal Inst Technol, S-10405 Stockholm, Sweden

来源：

EUV, X-RAY, AND NEUTRON OPTICS AND SOURCES | 1999年 / 3767卷

关键词：

x-ray imaging; refractive optics; focusing;

D O I：

10.1117/12.371105

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present a novel design of a refractive x-ray lens. It is shown that a lens with a simple saw-tooth profile will have the same focusing properties as one with parabolic surfaces. The lens can be made in two symmetric pieces, and be fabricated with a standard record-cutting machine at a very low cost. Furthermore, the focal length for a given energy can be adjusted by a simple mechanical procedure. A prototype in vinyl with a focal length of 20 cm for 25 keV x-rays has been manufactured. Measurements in a table-top setup with a conventional x-ray tube are in good agreement with calculations based on geometrical optics and ray-tracing simulations.

引用

页码：80 / 89

页数：10

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