NDLI: Investigation of image characteristics in phase-contrast X-Ray imaging (PCXI)) using a conventional X-Ray grid

Content Provider	Springer Nature Link
Author	Seo, Changwoo Kang, Seokyoon Kim, Kyuseok Lee, Minsik Park, Chulkyu Lee, Hunwoo Kim, Guna Lim, Hyunwoo Park, Soyoung Cho, Hyosung Je, Uikyu Lee, Dongyeon
Copyright Year	2017
Abstract	Phase-contrast x-ray imaging (PCXI) is an emerging technology which allows for imaging of smaller features in the examined sample than conventional attenuation-based x-ray imaging with lower x-ray dose. In this work, we investigated a relatively simple approach to PCXI using a conventional x-ray grid, which has potential to open the way to further widespread use of the technique into many application fields. We performed a simulation using a useful PCXI software developed in our previous study to investigate the image characteristics. We also performed a preliminary experiment for PCXI using a table-top setup which consists of a focused-linear xray grid having a 200-lines/in strip density, a microfocus x-ray tube having a 55-μm focal spot, and a CMOS-type flat-panel detector having a 49-μm pixel resolution. We successfully extracted absorption, dark-field, and phase-contrast x-ray images of much enhanced visibility at a time from the raw image of the sample by Fourier analysis. Further, we made a composite image by combining the absorption image with the colored dark-field image and compared its image characteristic to that of the absorption image alone.
Starting Page	722
Ending Page	726
Page Count	5
File Format	PDF
ISSN	03744884
Journal	Journal of the Korean Physical Society
Volume Number	71
Issue Number	10
e-ISSN	19768524
Language	English
Publisher	The Korean Physical Society
Publisher Date	2017-11-17
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Microfocus x-ray tube Theoretical, Mathematical and Computational Physics X-ray grid Dark-field image Phase-contrast x-ray image Physics Particle and Nuclear Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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