A laboratory based edge-illumination x-ray phase-contrast imaging setup with two-directional sensitivity

被引：21

作者：

Kallon, Gibril K. ^{[1
]}

Wesolowski, Michal ^{[2
]}

Vittoria, Fabio A. ^{[1
]}

Endrizzi, Marco ^{[1
]}

Basta, Dario ^{[1
]}

Millard, Thomas P. ^{[1
]}

Diemoz, Paul C. ^{[1
]}

Olivo, Alessandro ^{[1
]}

机构：

[1] UCL, Dept Med Phys & Biomed Engn, London WC1E 6BT, England

[2] Univ Saskatchewan, Dept Med Imaging, Saskatoon, SK S7N 0W8, Canada

来源：

APPLIED PHYSICS LETTERS | 2015年 / 107卷 / 20期

基金：

英国工程与自然科学研究理事会; 英国科学技术设施理事会;

关键词：

ABSORPTION; RETRIEVAL; REFRACTION;

D O I：

10.1063/1.4935983

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on a preliminary laboratory based x-ray phase-contrast imaging system capable of achieving two-directional phase sensitivity, thanks to the use of L-shaped apertures. We show that in addition to apparent absorption, two-directional differential phase images of an object can be quantitatively retrieved by using only three input images. We also verify that knowledge of the phase derivatives along both directions allows for straightforward phase integration with no streak artefacts, a known problem common to all differential phase techniques. In addition, an analytical method for 2-directional dark field retrieval is proposed and experimentally demonstrated. (c) 2015 Author(s).

引用

页数：5

共 37 条

[1] Linear phase imaging using differential interference contrast microscopy [J].

Arnison, MR ;

Larkin, KG ;

Sheppard, CJR ;

Smith, NI ;

Cogswell, CJ .

JOURNAL OF MICROSCOPY-OXFORD, 2004, 214 (01) :7-12

[2] Egocentric Fairness Perception: Emotional Reactions and Individual Differences in Overt Responses [J].

Bediou, Benoit ;

Scherer, Klaus R. .

PLOS ONE, 2014, 9 (02)

[3] Diffraction enhanced x-ray imaging [J].

Chapman, D ;

Thomlinson, W ;

Johnston, RE ;

Washburn, D ;

Pisano, E ;

Gmur, N ;

Zhong, Z ;

Menk, R ;

Arfelli, F ;

Sayers, D .

PHYSICS IN MEDICINE AND BIOLOGY, 1997, 42 (11) :2015-2025

[4] Phase objects in synchrotron radiation hard x-ray imaging [J].

Cloetens, P ;

Barrett, R ;

Baruchel, J ;

Guigay, JP ;

Schlenker, M .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1996, 29 (01) :133-146

[5] PHASE-CONTRAST IMAGING OF WEAKLY ABSORBING MATERIALS USING HARD X-RAYS [J].

DAVIS, TJ ;

GAO, D ;

GUREYEV, TE ;

STEVENSON, AW ;

WILKINS, SW .

NATURE, 1995, 373 (6515) :595-598

[6] Sensitivity of laboratory based implementations of edge illumination X-ray phase-contrast imaging [J].

Diemoz, P. C. ;

Hagen, C. K. ;

Endrizzi, M. ;

Olivo, A. .

APPLIED PHYSICS LETTERS, 2013, 103 (24)

[7] On the origin of contrast in edge illumination X-ray phase-contrast imaging [J].

Diemoz, Paul C. ;

Olivo, Alessandro .

OPTICS EXPRESS, 2014, 22 (23) :28199-28214

[8] Achromatic approach to phase-based multi-modal imaging with conventional X-ray sources [J].

Endrizzi, Marco ;

Vittoria, Fabio A. ;

Kallon, Gibril ;

Basta, Dario ;

Diemoz, Paul C. ;

Vincenzi, Alessandro ;

Delogu, Pasquale ;

Bellazzini, Ronaldo ;

Olivo, Alessandro .

OPTICS EXPRESS, 2015, 23 (12) :16473-16480

[9] Hard X-ray dark-field imaging with incoherent sample illumination [J].

Endrizzi, Marco ;

Diemoz, Paul C. ;

Millard, Thomas P. ;

Jones, J. Louise ;

Speller, Robert D. ;

Robinson, Ian K. ;

Olivo, Alessandro .

APPLIED PHYSICS LETTERS, 2014, 104 (02)

[10] The effect of the spatial sampling rate on quantitative phase information extracted from planar and tomographic edge illumination x-ray phase contrast images [J].

Hagen, C. K. ;

Diemoz, P. C. ;

Endrizzi, M. ;

Olivo, A. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2014, 47 (45)

← 1 2 3 4 →