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Optimisation of a neutron imaging system using the modulation transfer function

Vili Grigorova*, Paritosh Giri, Joseph J. Bevitt, Simon Clark

*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

The 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.
Original languageEnglish
Article number168754
Pages (from-to)1-6
Number of pages6
JournalNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
Volume1057
DOIs
Publication statusPublished - Dec 2023

Bibliographical note

Copyright the Author(s) 2023. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • Image resolution
  • Modulation transfer function
  • Neutron imaging

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