Neutron beam shaping by ghost projection

We present a method to shape a neutron beam and project any specified target image using a single universal patterned mask that is transversely displaced. The method relies on ``ghost projection,'' which is a reversed form of classical ghost imaging. A set of submask regions that combine to construct the required beam shape is computed; illumination of each region with the determined exposure time projects the shaped beam. We demonstrate this method experimentally, using the Dingo neutron imaging beamline at the OPAL nuclear research reactor (Australia). The ability to shape a neutron beam ``on demand'' allows selective dose delivery away from sensitive areas of samples, such as in cultural heritage artifacts. It also benefits irradiation techniques, e.g., in testing the resilience of electronic components for space and defense technologies or neutron therapies.

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Publication Details

Journal
Physical review. A/Physical review, A
Published
2025-04-17
DOI
https://doi.org/10.1103/physreva.111.043520
Citations
1
Primary Topic
Seismic Imaging and Inversion Techniques
Type
article
Field-Weighted Citation Impact
1.87

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article

Neutron beam shaping by ghost projection

Lindon Roberts, Jeremy M. C. Brown, Ulf Garbe, Alaleh Aminzadeh et al.
1 citations
Physical review. A/Physical review, A
Seismic Imaging and Inversion Techniques
1.87
article

Neutron beam shaping by ghost projection

Lindon Roberts, Jeremy M. C. Brown, Ulf Garbe, Alaleh Aminzadeh, David M. Paganin, Joseph John Bevitt, Filomena Salvemini, Andrew Kingston
article en
1 citations

Abstract

We present a method to shape a neutron beam and project any specified target image using a single universal patterned mask that is transversely displaced. The method relies on ``ghost projection,'' which is a reversed form of classical ghost imaging. A set of submask regions that combine to construct the required beam shape is computed; illumination of each region with the determined exposure time projects the shaped beam. We demonstrate this method experimentally, using the Dingo neutron imaging beamline at the OPAL nuclear research reactor (Australia). The ability to shape a neutron beam ``on demand'' allows selective dose delivery away from sensitive areas of samples, such as in cultural heritage artifacts. It also benefits irradiation techniques, e.g., in testing the resilience of electronic components for space and defense technologies or neutron therapies.

Physical review. A/Physical review, AVol. 111(4)
Australian National University (AU), The University of Sydney (AU), Australian Nuclear Science and Technology Organisation (AU), Australian Regenerative Medicine Institute (AU), Monash University (AU), Swinburne University of Technology (AU)
Australian Research Council, Division of Arctic Sciences
Climate action
Openalex Percentile: Top 19%
Seismic Imaging and Inversion Techniques
1.87
DOISourceOpenAlex
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Neutron beam shaping by ghost projection — Lindon Roberts, Jeremy M. C. Brown, et al. · Physical review. A/Physical review, A (2025) | TGRS Research Map | TGRS