Polychromatic cone-beam phase-contrast tomography

被引：52

作者：

Myers, G. R. ^{[1
]}

Mayo, S. C. ^{[2
]}

Gureyev, T. E. ^{[2
]}

Paganin, D. M. ^{[1
]}

Wilkins, S. W. ^{[2
]}

机构：

[1] Monash Univ, Sch Phys, Clayton, Vic 3800, Australia

[2] CSIRO Mfg & Mat Technol, Clayton, Vic 3169, Australia

来源：

PHYSICAL REVIEW A | 2007年 / 76卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.76.045804

中图分类号：

O43 [光学];

学科分类号：

070207 [光学]; 0803 [光学工程];

摘要：

A method is presented for quantitative phase-contrast tomography using unfiltered radiation from a small polychromatic source. The three-dimensional distribution of complex refractive index in a monomorphous object is reconstructed given a single projection image per view angle. The reconstruction algorithm is achromatic and stable with respect to high-spatial-frequency noise, in contrast to conventional tomography. The density distribution in a test sample was accurately reconstructed from polychromatic phase-contrast data collected with a point-projection x-ray microscope.

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页数：4

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