Application of polycapillary x ray lens to eliminate both the effect of x ray source size and scatter of the sample in laboratory tomography

Xuepeng Sun; Zhiguo Liu; Tianxi Sun; Longtao Yi; Weiyuan Sun; Fangzuo Li; Bowen Jiang; Yongzhong Ma; Xunliang Ding

doi:10.3788/COL201513.093401

Journals >Chinese Optics Letters >Volume 13 >Issue 9 >Page 093401 > Article

Chinese Optics Letters
Vol. 13, Issue 9, 093401 (2015)

Application of polycapillary x ray lens to eliminate both the effect of x ray source size and scatter of the sample in laboratory tomography

Xuepeng Sun^1、2、3, Zhiguo Liu^1、2、3, Tianxi Sun^{1、2、3、*}, Longtao Yi^1、2、3, Weiyuan Sun^1、2、3, Fangzuo Li^1、2、3, Bowen Jiang^1、2、3, Yongzhong Ma⁴, and Xunliang Ding^1、2、3

Author Affiliations

¹The Key Laboratory of Beam Technology and Materials Modification of the Ministry of Education, Beijing Normal University, Beijing 100875, China

²College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China

³Beijing Radiation Center, Beijing 100875, China

⁴Center for Disease Control and Prevention of Beijing, Beijing 100013, China

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DOI: 10.3788/COL201513.093401 Cite this Article Set citation alerts

Xuepeng Sun, Zhiguo Liu, Tianxi Sun, Longtao Yi, Weiyuan Sun, Fangzuo Li, Bowen Jiang, Yongzhong Ma, Xunliang Ding. Application of polycapillary x ray lens to eliminate both the effect of x ray source size and scatter of the sample in laboratory tomography[J]. Chinese Optics Letters, 2015, 13(9): 093401 Copy Citation Text

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Abstract

A tomography device based on a conventional laboratory x ray source, polycapillary parallel x ray lens (PPXRL), and polycapillary collimating x ray lens (PCXRL) is designed. The PPXRL can collect the divergent x ray beam from the source and focus it into a quasi-parallel x ray beam with a divergence of 4.7 mrad. In the center of quasi-parallel x ray beam, there is a plateau region with an average gain in power density of 13.8 and a diameter of 630 μm. The contrast of the image can be improved from 28.9% to 56.0% after adding the PCXRL between the sample and the detector.