Angular-resolution and material-characterization measurements for a dual-particle imaging system with mixed-oxide fuel
Abstract
A dual-particle imaging (DPI) system, capable of simultaneously imaging fast neutrons and gamma rays, has been operated in the presence of mixed-oxide (MOX) fuel to assess the system's angular resolution and material-characterization capabilities. The detection principle is based on the scattering physics of neutrons (elastic scattering) and gamma rays (Compton scattering) in organic and inorganic scintillators. The detection system is designed as a combination of a two-plane Compton camera and a neutron-scatter camera. The front plane consists of EJ-309 liquid scintillators and the back plane consists of interleaved EJ-309 and NaI(Tl) scintillators. MCNPX-PoliMi was used to optimize the geometry of the system and the resulting prototype was built and tested using a Cf-252 source as an SNM surrogate. A software package was developed to acquire and process data in real time. The software was used for a measurement campaign to assess the angular resolution of the imaging system with MOX samples. Measurements of two MOX canisters of similar isotopics and intensity were performed for 6 different canister separations (from 5° to 30°, corresponding to distances of 21 cm and 131 cm, respectively). The measurements yielded a minimum separation of 20° at 2.5 m (86-cm separation) required to see 2 separatemore »
- Authors:
-
- Univ. of Michigan, Ann Arbor, MI (United States)
- Lainsa-Italia S.R.L., Ispra (Italy)
- Inst. for Transuranium Elements, Ispra (Italy)
- Publication Date:
- Research Org.:
- Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1581995
- Alternate Identifier(s):
- OSTI ID: 1247240; OSTI ID: 1365797
- Grant/Contract Number:
- NA0002481; AC04-94AL85000; NE0000324; 173669; FOA-0000568; NA0002534
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Additional Journal Information:
- Journal Volume: 797; Journal Issue: C; Journal ID: ISSN 0168-9002
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Compton scattering; Neutron elastic scattering; Simultaneous detection of gamma rays and neutrons; NaI(Tl) scintillator; EJ-309 organic-liquid scintillator; MCNPX-PoliMi; EJ-309 organic-liquidscintillator
Citation Formats
Poitrasson-Rivière, Alexis, Polack, J. Kyle, Hamel, Michael C., Klemm, Dietrich D., Ito, Kai, McSpaden, Alexander T., Flaska, Marek, Clarke, Shaun D., Pozzi, Sara A., Tomanin, Alice, and Peerani, Paolo. Angular-resolution and material-characterization measurements for a dual-particle imaging system with mixed-oxide fuel. United States: N. p., 2015.
Web. doi:10.1016/j.nima.2015.06.045.
Poitrasson-Rivière, Alexis, Polack, J. Kyle, Hamel, Michael C., Klemm, Dietrich D., Ito, Kai, McSpaden, Alexander T., Flaska, Marek, Clarke, Shaun D., Pozzi, Sara A., Tomanin, Alice, & Peerani, Paolo. Angular-resolution and material-characterization measurements for a dual-particle imaging system with mixed-oxide fuel. United States. https://doi.org/10.1016/j.nima.2015.06.045
Poitrasson-Rivière, Alexis, Polack, J. Kyle, Hamel, Michael C., Klemm, Dietrich D., Ito, Kai, McSpaden, Alexander T., Flaska, Marek, Clarke, Shaun D., Pozzi, Sara A., Tomanin, Alice, and Peerani, Paolo. Fri .
"Angular-resolution and material-characterization measurements for a dual-particle imaging system with mixed-oxide fuel". United States. https://doi.org/10.1016/j.nima.2015.06.045. https://www.osti.gov/servlets/purl/1581995.
@article{osti_1581995,
title = {Angular-resolution and material-characterization measurements for a dual-particle imaging system with mixed-oxide fuel},
author = {Poitrasson-Rivière, Alexis and Polack, J. Kyle and Hamel, Michael C. and Klemm, Dietrich D. and Ito, Kai and McSpaden, Alexander T. and Flaska, Marek and Clarke, Shaun D. and Pozzi, Sara A. and Tomanin, Alice and Peerani, Paolo},
abstractNote = {A dual-particle imaging (DPI) system, capable of simultaneously imaging fast neutrons and gamma rays, has been operated in the presence of mixed-oxide (MOX) fuel to assess the system's angular resolution and material-characterization capabilities. The detection principle is based on the scattering physics of neutrons (elastic scattering) and gamma rays (Compton scattering) in organic and inorganic scintillators. The detection system is designed as a combination of a two-plane Compton camera and a neutron-scatter camera. The front plane consists of EJ-309 liquid scintillators and the back plane consists of interleaved EJ-309 and NaI(Tl) scintillators. MCNPX-PoliMi was used to optimize the geometry of the system and the resulting prototype was built and tested using a Cf-252 source as an SNM surrogate. A software package was developed to acquire and process data in real time. The software was used for a measurement campaign to assess the angular resolution of the imaging system with MOX samples. Measurements of two MOX canisters of similar isotopics and intensity were performed for 6 different canister separations (from 5° to 30°, corresponding to distances of 21 cm and 131 cm, respectively). The measurements yielded a minimum separation of 20° at 2.5 m (86-cm separation) required to see 2 separate hot spots. Additionally, the results displayed good agreement with MCNPX-PoliMi simulations. These results indicate an angular resolution between 15° and 20°, given the 5° step. Coupled with its large field of view, and its capability to differentiate between spontaneous fission and (α,n) sources, the DPI system shows its potential for nuclear-nonproliferation applications.},
doi = {10.1016/j.nima.2015.06.045},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 797,
place = {United States},
year = {Fri Jul 03 00:00:00 EDT 2015},
month = {Fri Jul 03 00:00:00 EDT 2015}
}
Web of Science
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Works referencing / citing this record:
Active neutron and gamma-ray imaging of highly enriched uranium for treaty verification
journal, August 2017
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