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Feasibility study of Compton imaging for PGAA

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Abstract

We are developing a one-sided tomographic method for imaging prompt gamma rays, without moving the source, sample, or detector, in a standard prompt gamma activation analysis setting. Dual-plane pixelated CdZnTe detectors developed from a commercial system with external timing synchronization electronics are used to measure prompt gamma rays that are scattered in the first plane and subsequently absorbed in the second plane. Tomographic images have been reconstructed from the 2.2 MeV gamma rays from H in 3 mm plastic balls using inter-plane events for the first time, demonstrating the feasibility of spatially resolving mm scale H features.

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Notes

  1. Identification of certain commercial equipment in this paper is not intended to imply recommendation or endorsement by the National Institute of Standards and Technology, nor is it intended to imply that the equipment identified is necessarily the best available for the purpose.

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Acknowledgements

The work performed by H3D was supported by the National Institute of Standards and Technology (NIST) under cooperative agreement 2018-NIST-SBIR-01: Subtopic 9.02.02.63.

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Authors and Affiliations

  1. National Institute of Standards and Technology, Gaithersburg, MD, USA

    H. Heather Chen-Mayer

  2. H3D Inc., Ann Arbor, MI, USA

    Steven Brown & Hao Yang

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  1. H. Heather Chen-Mayer
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  2. Steven Brown
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  3. Hao Yang
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Correspondence to H. Heather Chen-Mayer.

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Chen-Mayer, H.H., Brown, S. & Yang, H. Feasibility study of Compton imaging for PGAA. J Radioanal Nucl Chem 322, 1729–1738 (2019). https://doi.org/10.1007/s10967-019-06818-w

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  • DOI: https://doi.org/10.1007/s10967-019-06818-w

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