Modelling of a new X-ray backscatter imaging system: simulation investigation

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dc.contributor.authorSelvagumar, Senthurran
dc.contributor.authorYuen, Peter W. T.
dc.contributor.authorSoori, Umair
dc.contributor.authorPiper, Johnathan
dc.contributor.authorJames, David
dc.contributor.authorAndre, David
dc.contributor.authorRichardson, Mark A.
dc.date.accessioned2022-06-09T17:12:09Z
dc.date.available2022-06-09T17:12:09Z
dc.date.issued2022-04-04
dc.description.abstractX-ray backscatter imaging is a powerful technique for medical, aerospace, and security applications. Conventionally, a pinhole is commonly used for focusing x-ray, but there is always a desire to enhance the signal-to-noise-ratio (SNR) and optical throughput compared to a single pinhole. The main aim of this paper is to present a new x-ray backscatter imaging system which was inspired by a Twisted Slit collimator system called the Vortex Collimator and compare the optical throughput and the imaging performance with that of the Twisted Slit' collimator1,2 and the Pinhole imaging systems for axial point sources, where the pinhole system was used purely for comparison purposes. All the comparisons were performed through Ray tracing (Trace-Pro) simulation software. This work shows that the Vortex design yields ~4% higher SNR/optical throughput than that of the Twisted Slit collimator, and ~42.5% higher transmittance. Furthermore, the opening of the Vortex Collimator was increased and reduced to observe the performance, resulting in about ~1% transmittance increment when the opening was increased. Also, thicknesses of the Vortex Collimator and Twisted Slit collimator were increased and reduced and found that reducing the thickness seems to increase the system's throughput marginally.en_UK
dc.identifier.citationSelvagumar S, Yuen PWT, Umair S, et al., (2022) Modelling of a new X-ray backscatter imaging system: simulation investigation. Journal of Imaging Science and Technology, Volume 66, Issue 3, Article number 030510en_UK
dc.identifier.issn1062-3701
dc.identifier.urihttps://doi.org/10.2352/J.ImagingSci.Technol.2022.66.3.030510
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/18001
dc.language.isoenen_UK
dc.publisherIS&T Society for Imaging Science and Technologyen_UK
dc.subjectCoded apertureen_UK
dc.subjectVortex Collimatoren_UK
dc.subjectX-ray Backscatteren_UK
dc.subjectTwisted Slit collimatoren_UK
dc.titleModelling of a new X-ray backscatter imaging system: simulation investigationen_UK
dc.typeArticleen_UK

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