Open AccessTheoretical and experimental study of two-phase-stepping approach for hard X-ray differential phase contrast imaging
Author(s) -
Yang Du,
Lei Yaohu,
Xin Liu,
Jr-Hung Guo,
Hanben Niu
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.068702
Subject(s) - contrast (vision) , phase (matter) , x ray phase contrast imaging , computer science , differential (mechanical device) , phase contrast imaging , x ray , phase contrast microscopy , optics , medical imaging , research object , algorithm , physics , computer vision , artificial intelligence , quantum mechanics , regional science , thermodynamics , geography
To satisfy the need of low-dose and high-speed in practical application of hard X-ray differential phase contrast imaging, according to the theoretical analysis and the optimal design of parameters for the experimental system, we propose a two-stepping phase shift algorithm to retrieve the object phase information. The method can effectively reduce the radiation dose and substantially improve the speed of retrieving phase information, which lays the foundation for the X-ray phase contrast imaging in medical and industrial applications.