Optimisation of a neutron imaging system using the modulation transfer function

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dc.contributor.authorGrigorova, Ven_AU
dc.contributor.authorGiri, Pen_AU
dc.contributor.authorBevitt, JJen_AU
dc.contributor.authorClark, SMen_AU
dc.date.accessioned2024-11-15T02:55:32Zen_AU
dc.date.available2024-11-15T02:55:32Zen_AU
dc.date.issued2023-12en_AU
dc.date.statistics2024-11-07en_AU
dc.description.abstractThe use of the modulation transfer function was explored for the characterisation and optimisation of the optical system used for tomographic imaging on the DINGO instrument at the Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia. Both a Siemens star and a phantom were used to determine the modulation transfer function and the results are compared. This allowed the optimal configuration of the instrument to be determined and the establishment of a relationship between sample dimension, exposure time and radiograph resolution to be developed. For tomographic studies of large samples, best results were achieved with DINGO configured in high-flux mode (L/D = 500), with a 6LiF/ZnS scintillator screen, an Iris 15TM sCMOS detector, a 50 mm lens, and an exposure time between 4 and 8 s. © 2023 The Authors. Published by Elsevier B.V. - Open Access CC-BY.en_AU
dc.description.sponsorshipWe would like to thank COMPRES and the Advanced Light Source for access to the CNC machine used to fabricate the Phantom. We would like to thank the Australian Centre for Neutron Scattering, ANSTO, Lucas Heights, Australia for use of the neutron tomography instrument DINGO under beamtime proposals: P8350. Vili Grigorova would like to thank Edinburgh University and Macquarie University for support during her PhD studies under a cotutelle agreement. We would like to extend our sincere gratitude to the anonymous reviewers whose valuable feedback has significantly improved the quality of our paper.en_AU
dc.identifier.articlenumber168754en_AU
dc.identifier.citationGrigorova, V., Giri, P., Bevitt, J. J., & Clark, S. M. (2023). Optimisation of a neutron imaging system using the modulation transfer function. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1057, 168754. doi:10.1016/j.nima.2023.168754en_AU
dc.identifier.issn0168-9002en_AU
dc.identifier.journaltitleNuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipmenten_AU
dc.identifier.urihttps://doi.org/10.1016/j.nima.2023.168754en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15753en_AU
dc.identifier.volume1057en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectNeutronsen_AU
dc.subjectModulationen_AU
dc.subjectFunctionsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectResolutionen_AU
dc.subjectANSTOen_AU
dc.subjectMeasuring instrumentsen_AU
dc.subjectScatteringen_AU
dc.titleOptimisation of a neutron imaging system using the modulation transfer functionen_AU
dc.typeJournal Articleen_AU
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