Stochastic image reconstruction for a dual-particle imaging system

Hamel, M. C.; Polack, J. K.; Poitrasson-Rivière, A.; Flaska, M.; Clarke, S. D.; Pozzi, S. A.; Tomanin, Alice; Peerani, P.

doi:10.1016/j.nima.2015.12.002

Stochastic image reconstruction for a dual-particle imaging system

Journal Article · Wed Dec 09 23:00:00 EST 2015 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2015.12.002· OSTI ID:1581997

Hamel, M. C. ^[1]; Polack, J. K. ^[2]; Poitrasson-Rivière, A. ^[2]; Flaska, M. ^[3]; Clarke, S. D. ^[2]; Pozzi, S. A. ^[2]; Tomanin, Alice ^[4]; Peerani, P. ^[5]

Univ. of Michigan, Ann Arbor, MI (United States); University of Michigan
Univ. of Michigan, Ann Arbor, MI (United States)
Univ. of Michigan, Ann Arbor, MI (United States); Pennsylvania State Univ., University Park, PA (United States)
Inst. for Transuranium Elements, Ispra (Italy); Lainsa-Italia S.R.L., Ispra (Italy)
Inst. for Transuranium Elements, Ispra (Italy)

Stochastic image reconstruction has been applied to a dual-particle imaging system being designed for nuclear safeguards applications. The dual-particle imager (DPI) is a combined Compton-scatter and neutron-scatter camera capable of producing separate neutron and photon images. The stochastic origin ensembles (SOE) method was investigated as an imaging method for the DPI because only a minimal estimation of system response is required to produce images with quality that is comparable to common maximum-likelihood methods. Here, this work contains neutron and photon SOE image reconstructions for a 252Cf point source, two mixed-oxide (MOX) fuel canisters representing point sources, and the MOX fuel canisters representing a distributed source. Simulation of the DPI using MCNPX-PoliMi is validated by comparison of simulated and measured results. Because image quality is dependent on the number of counts and iterations used, the relationship between these quantities is investigated.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Michigan, Ann Arbor, MI (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0002481; NA0002534; NE0000324

OSTI ID:: 1581997

Alternate ID(s):: OSTI ID: 1359630
OSTI ID: 22561813

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment Journal Issue: C Vol. 810; ISSN 0168-9002

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Active neutron and gamma-ray imaging of highly enriched uranium for treaty verification Hamel, Michael C.; Polack, J. Kyle; Ruch, Marc L. Scientific Reports, Vol. 7, Issue 1 https://doi.org/10.1038/s41598-017-08253-x	journal	August 2017

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