Hard X-ray phase-contrast imaging

被引：22

作者：

Gao, DC ^{[1
]}

Pogany, A

Stevenson, AW

Gureyev, T

Wilkins, SW

Mai, ZH

机构：

[1] CSIRO, Clayton, Vic 3169, Australia

[2] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

[3] Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China

来源：

ACTA PHYSICA SINICA | 2000年 / 49卷 / 12期

关键词：

phase-contrast; imaging; hard X-ray;

D O I：

10.7498/aps.49.2357

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Conventional X-ray radiography is based on absorption contrast and assumes geometrical optics. An "in-line" method and theory of hard X-ray phase-contrast imaging were introduced. The differences between the conventional X-ray absorption contrast image and the phase contrast image were distinguished by using radiographs of biological samples. The effect of X-ray source size on the image contrast was investigated. Moreover, the key parameters of absorption contrast image and phase contrast image were simulated theoretically and discussed.

引用

收藏

页码：2357 / 2368

页数：12

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