Journal ArticleDOI
Securing Special Nuclear Material: Recent Advances in Neutron Detection and Their Role in Nonproliferation
TLDR
Applications relying on neutron-detection technology range from traditional nuclear nonproliferation objectives, such as safeguarding material and verifying stockpile reductions, to the interdiction of SNM—a goal that has recently risen in priority to a level on par with traditional missions.Abstract:
Neutron detection is an integral part of the global effort to prevent the proliferation of special nuclear material (SNM). Applications relying on neutron-detection technology range from traditional nuclear nonproliferation objectives, such as safeguarding material and verifying stockpile reductions, to the interdiction of SNM—a goal that has recently risen in priority to a level on par with traditional missions. Large multinational programs targeting interdiction and safeguards have deployed radiation-detection assets across the globe. In parallel with these deployments of commercially available technology, significant research and development has been directed toward the creation of next-generation assets. Neutron-detection technology plays a prominent role because of the capability of neutrons to penetrate materials that readily absorb gamma rays and the unique fission signatures neutrons possess. One particularly acute technology-development challenge results from dwindling supplies of H3e, partially ...read more
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Journal ArticleDOI
Lanthanide-Activated Phosphors Based on 4f-5d Optical Transitions: Theoretical and Experimental Aspects.
TL;DR: Recent progress in developing methods for preparing lanthanide-activated phosphors, especially those featuring 4f-5d optical transitions, are reviewed, with particular attention given to two widely studied dopants, Ce3+ and Eu2+.
Journal ArticleDOI
Recent R&D Trends in Inorganic Single-Crystal Scintillator Materials for Radiation Detection
Martin Nikl,Akira Yoshikawa +1 more
TL;DR: The major achievements and research and development trends from the last decade in the field of single crystal scintillator materials are described in this paper, where two material families are included, namely, those of halide and oxide compounds.
Journal ArticleDOI
Inorganic scintillating materials and scintillation detectors.
TL;DR: Topics include positive hysteresis, the co-doping of non-luminescent ions, the introduction of an aimed impurity phase, the excitation density effect and the complementary relationship between scintillators and storage phosphors.
Journal ArticleDOI
Study of rare-earth-doped scintillators
TL;DR: In this article, the characteristics of these inorganic materials and their advantages and disadvantages for scintillators are discussed, as well as the advantages of using these materials in radiation detection applications.
Journal ArticleDOI
Rattling nucleons: New developments in active interrogation of special nuclear material
TL;DR: Active interrogation is a vigorous area of research and development due to its promise of offering detection and characterization capabilities of special nuclear material in environments where passive detection fails as mentioned in this paper, and advocates hope that active interrogation will provide a solution to the problem of detecting shielded uranium.
References
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Book
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TL;DR: In this paper, the authors present a detailed analysis of the effect of different types of detectors on the performance of the detection of neutrons and their effect on the detection efficiency and error prediction.
Journal ArticleDOI
Terrestrial cosmic rays
TL;DR: The terrestrial flux of nucleons can be attenuated by shielding, making a significant reduction in the electronic system soft-error rate, and estimates of such attenuation are made.
Proceedings ArticleDOI
IEEE Nuclear Science Symposium Conference Record
Yuxuan Zhang,Hongdi Li,Hossain Baghaei,Shitao Liu,Rocio Ramirez,Shaohui An,Chao Wang,Wai-Hoi Wong +7 more
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The Nuclear Fission Process
TL;DR: Theoretical models of Fission Fragment Mass and Energy Distributions (J. Moreau and K. Heyde) are presented in this paper, along with a discussion of the relationship between mass, charge and kinetic energy.
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Passive Nondestructive Assay of Nuclear Materials
TL;DR: This book emphasizes passive NDA techniques, although certain active techniques like gamma-ray absorption densitometry and x-ray fluorescence are discussed here because of their intimate relation to passive assay techniques.