Evaluation of simulators for x-ray speckle-based phase contrast imaging

Quénot, Laurène; Brun, Emmanuel; Létang, Jean Michel; Langer, Max

doi:10.1088/1361-6560/ac1f38

Cited by 9 publications

(4 citation statements)

References 35 publications

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“…Quénot et al [41] presented a comparison of different simulation methods, including a ray tracing method. Their own PARESIS software allows for computing the intensity images obtained during modulation-based XPCI.…”

Section: Wave Optics Simulation Of X-ray Phase-contrast Imagingmentioning

confidence: 99%

Combining Wave and Particle Effects in the Simulation of X-ray Phase Contrast—A Review

Pietersoone,

Létang,

Rit

et al. 2024

Instruments

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X-ray phase-contrast imaging (XPCI) is a family of imaging techniques that makes contrast visible due to phase shifts in the sample. Phase-sensitive techniques can potentially be several orders of magnitude more sensitive than attenuation-based techniques, finding applications in a wide range of fields, from biomedicine to materials science. The accurate simulation of XPCI allows for the planning of imaging experiments, potentially reducing the need for costly synchrotron beam access to find suitable imaging parameters. It can also provide training data for recently proposed machine learning-based phase retrieval algorithms. The simulation of XPCI has classically been carried out using wave optics or ray optics approaches. However, these approaches have not been capable of simulating all the artifacts present in experimental images. The increased interest in dark-field imaging has also prompted the inclusion of scattering in XPCI simulation codes. Scattering is classically simulated using Monte Carlo particle transport codes. The combination of the two perspectives has proven not to be straightforward, and several methods have been proposed. We review the available literature on the simulation of XPCI with attention given to particular methods, including the scattering component, and discuss the possible future directions for the simulation of both wave and particle effects in XPCI.

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Section: Wave Optics Simulation Of X-ray Phase-contrast Imagingmentioning

confidence: 99%

Combining Wave and Particle Effects in the Simulation of X-ray Phase Contrast—A Review

Pietersoone,

Létang,

Rit

et al. 2024

Instruments

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“…To incorporate these effects, grating bars are modelled as full 3D objects [21,22,40,41]. Three-dimensional MC models of membranes have been used for simulating speckle-based imaging as well [45]. As long as the gratings are a fixed part of the simulation model, however, any change in grating geometry requires a new MC simulation.…”

Section: Simulation Models For Gratingsmentioning

confidence: 99%

Virtual grating approach for Monte Carlo simulations of edge illumination-based x-ray phase contrast imaging

Sanctorum¹,

Sijbers²,

Beenhouwer³

2022

Preprint

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The design of new x-ray phase contrast imaging setups often relies on Monte Carlo simulations for prospective parameter studies. Monte Carlo simulations are known to be accurate but time consuming, leading to long simulation times, especially when many parameter variations are required. This is certainly the case for imaging methods relying on absorbing masks or gratings, with various tunable properties, such as pitch, aperture size, and thickness. In this work, we present the virtual grating approach to overcome this limitation. By replacing the gratings in the simulation with virtual gratings, the parameters of the gratings can be changed after the simulation, thereby significantly reducing the overall simulation time. The method is validated by comparison to explicit grating simulations, followed by representative demonstration cases.

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“…[2][3][4]9 Review papers exist. [10][11][12] We propose a new way to simulate both coherent and incoherent effects using the WDF.…”

Section: Introductionmentioning

confidence: 99%

Taking into account wave effects in Monte Carlo simulation of phase contrast imaging using the Wigner distribution function

Pietersoone,

Letang,

Rit

et al. 2024

Unconventional Optical Imaging IV

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Evaluation of simulators for x-ray speckle-based phase contrast imaging

Cited by 9 publications

References 35 publications

Combining Wave and Particle Effects in the Simulation of X-ray Phase Contrast—A Review

Combining Wave and Particle Effects in the Simulation of X-ray Phase Contrast—A Review

Virtual grating approach for Monte Carlo simulations of edge illumination-based x-ray phase contrast imaging

Taking into account wave effects in Monte Carlo simulation of phase contrast imaging using the Wigner distribution function

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