TY  - JOUR
TI  - Edge illumination X-ray phase tomography of multi-material samples using a single-image phase retrieval algorithm
AV  - public
Y1  - 2017/05/15/
EP  - 11996
KW  - Science & Technology
KW  -  Physical Sciences
KW  -  Optics
KW  -  CODED-APERTURE
KW  -  CONTRAST
KW  -  RESOLUTION
N2  - In this paper we present a single-image phase retrieval algorithm for multi-material samples, developed for the edge illumination (EI) X-ray phase contrast imaging method. The theoretical derivation is provided, along with any assumptions made. The algorithm is evaluated quantitatively using both simulated and experimental results from a computed tomography (CT) scan using the EI laboratory implementation. Qualitative CT results are provided for a biological sample containing both bone and soft-tissue. Using a single EI image per projection and knowledge of the complex refractive index, the algorithm can accurately retrieve the interface between a given pair of materials. A composite CT slice can be created by splicing together multiple CT reconstructions, each retrieved for a different pair of materials.
ID  - discovery1549816
PB  - OPTICAL SOC AMER
IS  - 10
N1  - Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
SP  - 11984
VL  - 25
JF  - Optics Express
A1  - Zamir, A
A1  - Diemoz, PC
A1  - Vittoria, FA
A1  - Hagen, CK
A1  - Endrizzi, M
A1  - Olivo, A
UR  - http://doi.org/10.1364/OE.25.011984
SN  - 1094-4087
ER  -