Nuclear
To address the international community’s needs for the safeguarding and monitoring of enriched uranium materials and to prevent the illicit theft, destruction, and transfer of such materials, it is crucial to explore non-destructive analytical techniques for measuring uranium content in enriched uranium materials. Currently, the Am-Li source is commonly used as an excitation source in active uranium measurement methods.
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This code implements an adaptive control system comprising a plant model, reference model, and adaptive controller. The plant and reference models are represented as linear state-space systems, while the adaptive controller employs a nonlinear IO system to adjust control parameters based on input signals and system states. The adaptive controller's internal dynamics are governed by differential equations, facilitating real-time adjustments to the control law coefficients.
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Stellarator coils offer a steady-state and stable plasma confinement design as an alternative to traditional toroidal-shaped tokamaks. The current-carrying coils exert a twisting magnetic field to control the plasma flow. The steady-state nature of stellarators makes them a desirable candidate for fusion power plants because they require less energy to maintain the plasma confinement. Predicting and analyzing complex stresses and coil deformations are integral in developing supportive steel jackets surrounding HTS coils.
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This study investigates two unavoidable noise factors: electronic noise (EN) and radiation scattering, associated with detectors and their electronics. This study proposes a novel methodology to estimate electronic and scattering noise separately. It utilizes mathematical tools, namely, Kanpur theorem-1 (KT-1), standard deviation, similarity dice coefficient parameters, and experimental computerized tomography technique. Four types of gamma detectors: CsI (Tl), LaBr3(Ce), NaI (Tl) and HPGe are used with their respective electronics.
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Three types of gamma radiation detectors associated with distributed electronics namely, NaI (Tl), HPGe and LaBr3(��) are compared primarily focusing on electronic noise and scattering noise. Additionally, detectors of same make, material, size and electronics are also compared.
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Real-time detection of X/gamma radiation dose rates holds particular significance in nuclear science research. In this study, we developed a portable X/gamma-ray survey meter for large-scale distributed real-time monitoring of ambient dose equivalent rates in the surrounding environment. This innovative device uses a silicon photomultiplier coupled with a CsI(Tl) scintillator and can connect to an Internet of Things (IoT) network.
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Complex warp propulsion systems in planetary intergalactic flights is to allow revolutionary progress in terms of energy efficiency and compatibility with future generations of spacecraft.
The project used extensive systems analysis and technological studies to enable the development at the complex system level of superior spacecraft propulsion technologies.
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This is the supplementary note in the article, which is used to introduce how to obtain cubic spline interpolation curves.
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In this study, the two-phase pressure drop in a one-sided high-heat-loaded screw tube was analyzed under subcooled flow boiling conditions. When the loaded heat flux is gradually increased under one-sided heating conditions, although the pressure drop changes slightly in the single phase, it starts to increase when loading above the onset of significant void (OSV) heat flux.
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