A Systematic Error in X-ray Grating Interferometry due to Asymmetric Scattering Distributions

被引：4

作者：

Modregger, Peter ^{[1
]}

Pinzer, Bernd Rudolf ^{[1
]}

Stampanoni, Marco ^{[1
]}

机构：

[1] Paul Scherrer Inst, Swiss Light Source, Villigen, Switzerland

来源：

INTERNATIONAL WORKSHOP ON X-RAY AND NEUTRON PHASE IMAGING WITH GRATINGS | 2012年 / 1466卷

关键词：

grating interferometry; x-ray imaging; data analysis; systematic errors;

D O I：

10.1063/1.4742306

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The high sensitivity provided by x-ray grating interferometry is one of the distinct characteristics of this phase contrast imaging technique. Up to now, several contributions to the uncertainty of the determined phase signal are known, which can be addressed by adapting total acquisition time or improving the mechanics of the experimental setup. Here, we demonstrate the occurrence of an additional systematic error, which is intrinsic to the physics of the contrast formation process. Based on a recently established scattering-based description of grating interferometry, we demonstrate analytically that asymmetric scattering distributions lead to a systematic error in the determined phase signal.

引用

页码：288 / 292

页数：5

共 19 条

[1]

CLOETENS P, 1999, THESIS VRIJE U BRUSS

[2] Differential x-ray phase contrast imaging using a shearing interferometer [J].

David, C ;

Nöhammer, B ;

Solak, HH ;

Ziegler, E .

APPLIED PHYSICS LETTERS, 2002, 81 (17) :3287-3289

[3] Contrast-to-noise in X-ray differential phase contrast imaging [J].

Engel, Klaus J. ;

Geller, D. ;

Koehler, T. ;

Martens, G. ;

Schusser, S. ;

Vogtmeier, G. ;

Roessl, E. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2011, 648 :S202-S207

[4]

James F.E., 2006, STAT METHODS EXPT PH

[5] Advanced phase-contrast imaging using a grating interferometer [J].

McDonald, Samuel Alan ;

Marone, Federica ;

Hintermueller, Christoph ;

Mikuljan, Gordan ;

David, Christian ;

Pfeiffer, Franz ;

Stampanoni, Marco .

JOURNAL OF SYNCHROTRON RADIATION, 2009, 16 :562-572

[6] Imaging the Ultrasmall-Angle X-Ray Scattering Distribution with Grating Interferometry [J].

Modregger, P. ;

Scattarella, F. ;

Pinzer, B. R. ;

David, C. ;

Bellotti, R. ;

Stampanoni, M. .

PHYSICAL REVIEW LETTERS, 2012, 108 (04)

[7] Sensitivity of X-ray grating interferometry [J].

Modregger, P. ;

Pinzer, B. R. ;

Thuering, T. ;

Rutishauser, S. ;

David, C. ;

Stampanoni, M. .

OPTICS EXPRESS, 2011, 19 (19) :18324-18338

[8] Demonstration of X-Ray Talbot interferometry [J].

Momose, A ;

Kawamoto, S ;

Koyama, I ;

Hamaishi, Y ;

Takai, K ;

Suzuki, Y .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2003, 42 (7B) :L866-L868

[9] Phase tomography by X-ray Talbot interferometry for biological imaging [J].

Momose, Atsushi ;

Yashiro, Wataru ;

Takeda, Yoshihiro ;

Suzuki, Yoshio ;

Hattori, Tadashi .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2006, 45 (6A) :5254-5262

[10] High-resolution brain tumor visualization using three-dimensional x-ray phase contrast tomography [J].

Pfeiffer, F. ;

Bunk, O. ;

David, C. ;

Bech, M. ;

Le Duc, G. ;

Bravin, A. ;

Cloetens, P. .

PHYSICS IN MEDICINE AND BIOLOGY, 2007, 52 (23) :6923-6930

← 1 2 →