Open AccessHigh‐energy phase‐contrast X‐ray imaging using a two‐crystal X‐ray interferometer
Author(s) -
Yoneyama Akio,
Takeda Tohoru,
Tsuchiya Yoshinori,
Wu Jin,
Lwin ThetThet,
Hyodo Kazuyuki,
Hirai Yasuharu
Publication year - 2005
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049505008356
Subject(s) - x ray , optics , interferometry , physics , visibility , interference (communication) , crystal (programming language) , phase contrast imaging , phase (matter) , contrast (vision) , photon , energy (signal processing) , resolution (logic) , phase contrast microscopy , materials science , computer science , computer network , channel (broadcasting) , quantum mechanics , artificial intelligence , programming language
To broaden the scope of phase‐contrast X‐ray imaging in biomedical applications, the energy of X‐rays in a large‐area imaging system using a two‐crystal X‐ray interferometer has been increased from 17.7 keV to 35 keV. The use of higher‐energy X‐rays makes it possible to observe larger samples having greater variation in density within shorter measurement periods, at higher spatial resolution, and at lower X‐ray doses. After optimizing the imaging system for 35 keV X‐rays, a 25 mm × 30 mm interference pattern with 50% visibility was generated at the Photon Factory. The system's capabilities are demonstrated by this pattern and a high‐quality three‐dimensional image of a rat heart.