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This work will examine detection of snm by studying two active interrogation methods: photon induced fission in fissile materials and nuclear resonance.
This paper addresses the testing standards needed for active-interrogation systems to detect high atomic number materials, fissionable materials, and specific special nuclear materials. The results given are based upon modeling scenarios constructed to evaluate options for surrogate materials that could be used for testing of such systems.
Active interrogation includes many methods for determining material contents hidden inside of packages.
Passive techniques for detecting shielded special nuclear material (snm) rely active interrogation techniques using external radiation sources to interrogate.
Active interrogation with fast neutron sources are detailed, including differential die-away analysis, delayed neutrons from fission, and delayed gammas from fission. Next a treatment of neutron transport for fast neutrons is given, along with concepts from age theory and methods to treat hydrogenous media.
This work will examine detection of snm by studying two active interrogation methods: photon induced fission in fissile materials and nuclear resonance fluorescence (nrf) reactions between incident photons and nuclei in target materials.
Would include passive and active detection methods, as well as imaging techniques. Active methods could include active photon interrogation, using nuclear.
A novel detection system using neutron/gamma pulse shape discrimination, for use in active interrogation environments.
Active interrogation, a measurement technique which uses a radiation source to probe materials and generate unique signatures useful for characterizing those materials, is a powerful tool for assaying special nuclear material. The most commonly used technique for performing active interrogation is to use an electronic neutron generator as the probe radiation source.
U-235, pu-239) can be detected by active interrogation with gamma-rays ( 6 mev) through photofission.
The measurements used the linac to irradiate depleted uranium, lead, and tungsten targets to induce photonuclear reactions to emit fast neutrons.
Detector calibration, low background techniques, ultra- high resolution.
Active interrogation in nuclear security science, technology and systems by igor jovanovic and publisher springer. Save up to 80% by choosing the etextbook option for isbn: 9783319744674, 3319744674. The print version of this textbook is isbn: 9783319744674, 3319744674.
Active interrogation in nuclear security is structured to appeal to a range of audiences, including graduate students, active researchers in the field, and policy analysts. The first book devoted entirely to active interrogation; presents a focused review of the relevant physics; surveys available technology; analyzes scientific and technology.
Active interrogation in nuclear process monitoring and safeguards active interrogation as a tool for nuclear safeguards and process monitoring in the nuclear fuel cycle has been the subject of many research projects and has been explored in nearly every aspect of the reprocessing cycle.
13 nov 2019 active interrogation (ai), the use of external radiation to increase the emission low-energy ion-driven nuclear reactions that produce multiple.
Active interrogation in nuclear security is structured to appeal to a range of audiences, including graduate students, active researchers in the field, and policy analysts. The first book devoted entirely to active interrogation presents a focused review of the relevant physics.
A review of literature in this area shows multiple applications of the active neutron interrogation technique for performing nuclear nonproliferation measurements.
Form an active interrogation system in which fast neutrons are produced in a heavy metal target by means of nuclear detectors (pnds) consisting of 3he tubes.
1051/epjconf/201714609018 - for the purpose of nuclear security and safeguards, an active neutron interrogation non-destructive assay.
Motivation: material identification with neutron-induced gamma spectrometry. Developers of these technologies are user group #1 in this study. These users need the number of absorption or scattering reactions and the number and energies of emitted gammas to be correct on average over many source neutrons.
2021年3月12日 these results show that fission-product isomers may be used in active interrogation to detect and identify special nuclear materials, even.
For the purposes of this manuscript, we define active interrogation as the use of ionizing radiation to induce nuclear reactions that uniquely identify or quantify special nuclear material (snm) through fission or isotopic identification.
Active interrogation in nuclear security – science, technology, and systems.
For the purpose of nuclear security and safeguards, an active neutron interrogation non-destructive assay technique, delayed gamma-ray spectroscopy (dgs),.
As many special nuclear materials of interest do not produce an easily detectable radiological signature, it is advantageous to probe the material with external radiation. This active interrogation of a material can produce a more identifiable signal than passive detection methods.
Covered topics spanning nuclear security missions, signatures accessible via radiation detection, gamma-ray and neutron detection, active interrogation, nuclear.
Techniques that use a pulsed neutron source to confirm special nuclear material are discussed in working group 3 nuclear material 5 technology data sheet. Techniques that use active neutron interrogation for the verification of high explosives are discussed.
The fissile materials that used in nuclear weapons are uranium and plutonium. 235u, 239pu) is utilized in active interrogation systems for snm detection.
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11 aug 2017 other related active interrogation methods are the nuclear material identification system and the advanced portable neutron imaging system,.
– neutron sources: everything that makes real active interrogation systems difficult also.
Active interrogation in u-235 was demonstrated with labr3:ce scintillation detectors using the nuclear resonance fluorescence (nrf) technique.
This reference presents the state-of-the-art in active interrogation, widely recognized as indispensable methods in the field of nuclear security.
Active interrogation in nuclear security is structured to appeal to a range of audiences, including graduate students, active researchers in the field, and policy analysts. The first book devoted entirely to active interrogation; presents a focused review of the relevant physics; surveys available technology.
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