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
收藏
页码：80 / 89
页数：10
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