Phase-contrast tomographic imaging using an X-ray interferometer

被引：46
|
作者：
Momose, A [1 ]
Takeda, T
Itai, Y
Yoneyama, A
Hirano, K
机构：
[1] Hitachi Ltd, Adv Res Lab, Hatoyama, Saitama 35003, Japan
[2] Univ Tsukuba, Inst Clin Med, Tsukuba, Ibaraki 305, Japan
[3] Hitachi Ltd, Cent Res Lab, Kokubunji, Tokyo 185, Japan
[4] High Energy Accelerator Res Org, Inst Mat Struct Sci, Tsukuba, Ibaraki 305, Japan
来源：
JOURNAL OF SYNCHROTRON RADIATION | 1998年 / 5卷
关键词：
phase contrast; tomography; X-ray interferometers; phase retrieval; cancer;
D O I：
10.1107/S0909049597014271
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Apparatus for phase-contrast X-ray computed tomography using a monolithic X-ray interferometer is presented with some observational results for human breast tissues. Structures characteristic of the tissues were revealed in the phase-contrast tomograms. The procedure of image analysis consists of phase retrieval from X-ray interference patterns and tomographic image reconstruction from the retrieved phase shift. Next, feasibility of phase-contrast imaging using a two-crystal X-ray interferometer was studied aiming at in vivo observation in the future. In a preliminary study, the two-crystal X-ray interferometer was capable of generating fringes of 70% visibility using synchrotron X-rays.
引用
收藏
页码：309 / 314
页数：6
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