Practical implementations of speckle-based phase-retrieval methods in Python and GPU for tomography

DOI: 10.1117/12.2636834

Authors: Nghia T. Vo (National Synchrotron Light Source II; Diamond Light Source) , Hongchang Wang (Diamond Light Source) , Lingfei Hu (Diamond Light Source) , Tunhe Zhou (tockholm University) , Marie-~christine Zdora (Paul Scherrer Institut) , Hans Deyhle (Diamond Light Source) , Robert C. Atwood (Diamond Light Source) , Michael Drakopoulos (National Synchrotron Light Source II)
Co-authored by industrial partner: No

Type: Conference Paper
Conference: SPIE Optical Engineering + Applications (2022)
Peer Reviewed: No

State: Published (Approved)
Published: October 2022
Diamond Proposal Number(s): 27987 , 20763 , 27144 , 31131

Abstract: X-ray phase-contrast tomography (X-PCT) techniques are capable of imaging samples with small differences in densities. They enable scientists to study biological or medical samples using high energy X-rays, which means less X-ray absorption and less sample damage, with high contrast quality. One branch of these techniques known as speckle-based methods have been well developed and demonstrated on real applications by different groups of developers using their own codes. However, there is lack of collective effort to package these methods into an open-source software which is easy-to-install, easy-to-use, well-documented, and optimized for speed. Such software is crucial to make the X-PCT techniques accessible to generic users and become regular tools. This report demonstrates the effort which implements speckle-based phase-retrieval methods in Python and GPU.

Journal Keywords: speckle tracking; X-ray speckle-based phase-contrast tomography; phase-contrast imaging; tomography

Subject Areas: Information and Communication Technology, Technique Development


Instruments: B16-Test Beamline , I12-JEEP: Joint Engineering, Environmental and Processing

Other Facilities: National Synchrotron Light Source II

Added On: 20/10/2022 09:40

Discipline Tags:

Physics Computing & software technologies Information & Communication Technologies Technique Development - Physics

Technical Tags:

Imaging Tomography