Optimization of cascaded parabolic compound X-ray refractive lenses

ZHOU Han-qing; FU Ming-lei; LE Zi-chun

doi:10.3788/OPE.20152313.0178

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Optimization of cascaded parabolic compound X-ray refractive lenses

更新时间：2020-08-13

- Optimization of cascaded parabolic compound X-ray refractive lenses
- Optics and Precision Engineering Vol. 23, Issue 10z, Pages: 179-184(2015)
- 作者机构：
  
  浙江工业大学理学院,浙江杭州,310023
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20152313.0178
  CLC： TH703
- Received：16 June 2015，
  
  Revised：08 July 2015，
  
  Published：14 November 2015
- 稿件说明：
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周寒青, 付明磊, 乐孜纯. 级联式X射线组合折射透镜优化[J]. 光学精密工程, 2015,23(10z): 179-184

ZHOU Han-qing, FU Ming-lei, LE Zi-chun. Optimization of cascaded parabolic compound X-ray refractive lenses[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10z): 179-184
周寒青, 付明磊, 乐孜纯. 级联式X射线组合折射透镜优化[J]. 光学精密工程, 2015,23(10z): 179-184 DOI： 10.3788/OPE.20152313.0178.

ZHOU Han-qing, FU Ming-lei, LE Zi-chun. Optimization of cascaded parabolic compound X-ray refractive lenses[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10z): 179-184 DOI： 10.3788/OPE.20152313.0178.

摘要

为了得到短焦距、高增益的X射线组合折射透镜(CRL)

对CRL的结构参数进行了优化

提出一种用聚甲基丙烯酸甲酯(PMMA)材料制作的由两个折射单元级联的新型抛物面型X射线组合折射透镜。推导了CRL的光学特性参数

数值分析了单一折射单元的组合折射透镜和级联式组合折射透镜的光学性能。结果显示:级联式CRL比相同几何孔径和曲率半径的单一折射单元CRL具有更小的焦距和更大的增益。所设计的3组透镜的焦距分别缩短了33.3%

66.7%和40.5%

增益分别提高了23.9%

60.9%和27.6%。新型的级联式组合折射透镜有望对一维X射线聚焦性能进行较好的调控

在微束X射线分析中具有较好的应用前景。

Abstract

To get Compound X-ray Refractive Lenses(CRL) with a short focal length and high gain

the structure parameters of CRL were optimized. And a novel cascaded parabolic CRL made of poly methylmethacrylate(PMMA) was developed by two refractive structures. The main optical performance of cascaded parabolic CRL was derived. And optical properties of the CRL with single structure and the cascaded CRL with two structures were numerically analyzed. The results show that the cascaded CRL imposes a smaller focal length and a higher gain as compared with the CRL with single structure for the same geometric aperture and the radius of curvature. The focal lengths of the designed three cascaded CRLs are shortened by 33.3%

66.7% and 40.5%

and the gains are increased by 23.9%

60.9% and 27.6%

respectively. The cascaded CRL is expected to have the ability to adjust the focal performance of ID X-ray beam and has a better application prospect in the micro beam X-ray analysis.

关键词

Keywords

references

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