Characterization of lithium-glass and polyvinyl toluene heterogeneous composites with varying geometries for fast neutron detection

Foster, A. M.; Meddeb, Amira Barhoumi; Wilhelm, K.; Nattress, J.; Ounaies, Zoubeida; Jovanovic, Igor

doi:10.1016/j.nima.2018.07.018

Cited by 9 publications

(2 citation statements)

References 17 publications

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“…The aromatic solvents meet these requirements and as such toluene, benzene and dioxane, became common solvents early in the history of liquid scintillation counting and remain common today [67]. Toluene, a common liquid scintillator material itself [68], is most often used in LSC as the solvent containing small quantities of additional scintillant, typically between 0-1 % by volume. However, in recent years there has been a…”

Section: Liquid Scintillation Cocktailsmentioning

confidence: 99%

Radiometric techniques for the detection and assessment of tritium in aqueous media - a review

Parker

Aspinall

Boxall

et al. 2023

Progress in Nuclear Energy

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Section: Liquid Scintillation Cocktailsmentioning

confidence: 99%

Radiometric techniques for the detection and assessment of tritium in aqueous media - a review

Parker

Aspinall

Boxall

et al. 2023

Progress in Nuclear Energy

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“…A custom heterogeneous composite detector was used to detect neutrons from neutron-induced fission. The detector has a height and diameter of 12.7 cm 35 . An array of enriched Li-6 scintillating glass (GS20) square rods (1 × 1 × 7.6 cm 3 ) was embedded and centered in a scintillating polyvinyl toluene (PVT) matrix.…”

Section: Experimental Setupsmentioning

confidence: 99%

Detecting and characterizing special nuclear material for nuclear nonproliferation applications

Pozzi

Hutchinson

et al. 2023

Sci Rep

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There is an urgent need for new, better instrumentation and techniques for detecting and characterizing special nuclear material (SNM), i.e., highly enriched uranium and plutonium. The development of improved instruments and techniques requires experiments performed with the SNM itself, which is of limited availability. This paper describes the findings of experiments performed at the National Criticality Experiments Research Center conducted using new instruments and techniques on unclassified, kg-quantity SNM objects. These experiments, performed in the framework of the Department of Energy, National Nuclear Security Administration Consortium for Monitoring, Technology, and Verification, focused on detecting, characterizing, and localizing SNM samples with masses ranging from 3.3 to 13.8 kg, including plutonium and highly enriched uranium using prototype detectors and techniques. The work demonstrates SNM detection and characterization using recently-developed prototype detection systems. Specifically, we present new results in passive detection and imaging of plutonium and uranium objects using gamma-ray and dual particle (fast neutron and gamma-ray) imaging. We also present a new analysis of the delayed neutron emissions during active interrogation of uranium using a neutron generator.

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Structured Scintillators for Efficient Radiation Detection

Lin

Yang

et al. 2021

Advanced Science

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Scintillators, which can convert high‐energy ionizing radiation into visible light, have been serving as the core component in radiation detectors for more than a century of history. To address the increasing application demands along with the concern on nuclear security, various strategies have been proposed to develop a next‐generation scintillator with a high performance in past decades, among which the novel approach via structure control has received great interest recently due to its high feasibility and efficiency. Herein, the concept of “structure engineering” is proposed for the exploration of this type of scintillators. Via internal or external structure design with size ranging from micro size to macro size, this promising strategy cannot only improve scintillator performance, typically radiation stopping power and light yield, but also extend its functionality for specific applications such as radiation imaging and therapy, opening up a new range of material candidates. The research and development of various types of structured scintillators are reviewed. The current state‐of‐the‐art progresses on structure design, fabrication techniques, and the corresponding applications are discussed. Furthermore, an outlook focusing on the current challenges and future development is proposed.

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Characterization of lithium-glass and polyvinyl toluene heterogeneous composites with varying geometries for fast neutron detection

Cited by 9 publications

References 17 publications

Radiometric techniques for the detection and assessment of tritium in aqueous media - a review

Radiometric techniques for the detection and assessment of tritium in aqueous media - a review

Detecting and characterizing special nuclear material for nuclear nonproliferation applications

Structured Scintillators for Efficient Radiation Detection

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