TY - JOUR
T1 - Stochastic image reconstruction for a dual-particle imaging system
AU - Hamel, M. C.
AU - Polack, J. K.
AU - Poitrasson-Rivière, A.
AU - Flaska, M.
AU - Clarke, S. D.
AU - Pozzi, S. A.
AU - Tomanin, A.
AU - Peerani, P.
N1 - Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2016/2/21
Y1 - 2016/2/21
N2 - 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. 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.
AB - 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. 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.
UR - http://www.scopus.com/inward/record.url?scp=84950276853&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84950276853&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2015.12.002
DO - 10.1016/j.nima.2015.12.002
M3 - Article
AN - SCOPUS:84950276853
SN - 0168-9002
VL - 810
SP - 120
EP - 131
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ER -