Polychromatic neutron phase-contrast imaging of weakly absorbing samples enabled by phase retrieval

Maja Østergaard; Estrid Buhl Naver; Anders Kaestner; Peter K Willendrup; Annemarie Brüel; Henning Osholm Sørensen; Jesper Skovhus Thomsen; Søren Schmidt; Henning Friis Poulsen; Luise Theil Kuhn; Henrik Birkedal

doi:10.1107/S1600576723003011

Polychromatic neutron phase-contrast imaging of weakly absorbing samples enabled by phase retrieval

Maja Østergaard, Estrid Buhl Naver, Anders Kaestner, Peter K Willendrup, Annemarie Brüel, Henning Osholm Sørensen, Jesper Skovhus Thomsen, Søren Schmidt, Henning Friis Poulsen, Luise Theil Kuhn^*, Henrik Birkedal^*

^*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

5 Citations (Scopus)

Abstract

The use of a phase-retrieval technique for propagation-based phase-contrast neutron imaging with a polychromatic beam is demonstrated. This enables imaging of samples with low absorption contrast and/or improving the signal-to-noise ratio to facilitate e.g. time-resolved measurements. A metal sample, designed to be close to a phase pure object, and a bone sample with canals partially filled with D2O were used for demonstrating the technique. These samples were imaged with a polychromatic neutron beam followed by phase retrieval. For both samples the signal-to-noise ratios were significantly improved and, in the case of the bone sample, the phase retrieval allowed for separation of bone and D2O, which is important for example for in situ flow experiments. The use of deuteration contrast avoids the use of chemical contrast enhancement and makes neutron imaging an interesting complementary method to X-ray imaging of bone.

Original language	English
Journal	Journal of Applied Crystallography
Volume	56
Issue	Part 3
Pages (from-to)	673-682
Number of pages	10
ISSN	0021-8898
DOIs	https://doi.org/10.1107/S1600576723003011
Publication status	Published - 1 Jun 2023

Keywords

bone
neutron imaging
phase retrieval
phase-contrast imaging
polychromatic neutrons
tomography

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10.1107/S1600576723003011Licence: CC BY

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Østergaard, M., Naver, E. B., Kaestner, A., Willendrup, P. K., Brüel, A., Sørensen, H. O., Thomsen, J. S., Schmidt, S., Poulsen, H. F., Theil Kuhn, L., & Birkedal, H. (2023). Polychromatic neutron phase-contrast imaging of weakly absorbing samples enabled by phase retrieval. Journal of Applied Crystallography, 56(Part 3), 673-682. https://doi.org/10.1107/S1600576723003011

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title = "Polychromatic neutron phase-contrast imaging of weakly absorbing samples enabled by phase retrieval",

abstract = "The use of a phase-retrieval technique for propagation-based phase-contrast neutron imaging with a polychromatic beam is demonstrated. This enables imaging of samples with low absorption contrast and/or improving the signal-to-noise ratio to facilitate e.g. time-resolved measurements. A metal sample, designed to be close to a phase pure object, and a bone sample with canals partially filled with D2O were used for demonstrating the technique. These samples were imaged with a polychromatic neutron beam followed by phase retrieval. For both samples the signal-to-noise ratios were significantly improved and, in the case of the bone sample, the phase retrieval allowed for separation of bone and D2O, which is important for example for in situ flow experiments. The use of deuteration contrast avoids the use of chemical contrast enhancement and makes neutron imaging an interesting complementary method to X-ray imaging of bone.",

keywords = "bone, neutron imaging, phase retrieval, phase-contrast imaging, polychromatic neutrons, tomography",

author = "Maja {\O}stergaard and Naver, {Estrid Buhl} and Anders Kaestner and Willendrup, {Peter K} and Annemarie Br{\"u}el and S{\o}rensen, {Henning Osholm} and Thomsen, {Jesper Skovhus} and S{\o}ren Schmidt and Poulsen, {Henning Friis} and {Theil Kuhn}, Luise and Henrik Birkedal",

year = "2023",

month = jun,

day = "1",

doi = "10.1107/S1600576723003011",

language = "English",

volume = "56",

pages = "673--682",

journal = "Journal of Applied Crystallography",

issn = "0021-8898",

publisher = "International Union of Crystallography",

number = "Part 3",

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Polychromatic neutron phase-contrast imaging of weakly absorbing samples enabled by phase retrieval. / Østergaard, Maja; Naver, Estrid Buhl; Kaestner, Anders et al.
In: Journal of Applied Crystallography, Vol. 56, No. Part 3, 01.06.2023, p. 673-682.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

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AU - Østergaard, Maja

AU - Naver, Estrid Buhl

AU - Kaestner, Anders

AU - Willendrup, Peter K

AU - Brüel, Annemarie

AU - Sørensen, Henning Osholm

AU - Thomsen, Jesper Skovhus

AU - Schmidt, Søren

AU - Poulsen, Henning Friis

AU - Theil Kuhn, Luise

AU - Birkedal, Henrik

PY - 2023/6/1

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N2 - The use of a phase-retrieval technique for propagation-based phase-contrast neutron imaging with a polychromatic beam is demonstrated. This enables imaging of samples with low absorption contrast and/or improving the signal-to-noise ratio to facilitate e.g. time-resolved measurements. A metal sample, designed to be close to a phase pure object, and a bone sample with canals partially filled with D2O were used for demonstrating the technique. These samples were imaged with a polychromatic neutron beam followed by phase retrieval. For both samples the signal-to-noise ratios were significantly improved and, in the case of the bone sample, the phase retrieval allowed for separation of bone and D2O, which is important for example for in situ flow experiments. The use of deuteration contrast avoids the use of chemical contrast enhancement and makes neutron imaging an interesting complementary method to X-ray imaging of bone.

AB - The use of a phase-retrieval technique for propagation-based phase-contrast neutron imaging with a polychromatic beam is demonstrated. This enables imaging of samples with low absorption contrast and/or improving the signal-to-noise ratio to facilitate e.g. time-resolved measurements. A metal sample, designed to be close to a phase pure object, and a bone sample with canals partially filled with D2O were used for demonstrating the technique. These samples were imaged with a polychromatic neutron beam followed by phase retrieval. For both samples the signal-to-noise ratios were significantly improved and, in the case of the bone sample, the phase retrieval allowed for separation of bone and D2O, which is important for example for in situ flow experiments. The use of deuteration contrast avoids the use of chemical contrast enhancement and makes neutron imaging an interesting complementary method to X-ray imaging of bone.

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KW - neutron imaging

KW - phase retrieval

KW - phase-contrast imaging

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KW - tomography

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EP - 682

JO - Journal of Applied Crystallography

JF - Journal of Applied Crystallography

IS - Part 3

ER -

Polychromatic neutron phase-contrast imaging of weakly absorbing samples enabled by phase retrieval

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