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281
Study of Fast Transient Pressure Drop in VVER-1000 Nuclear Reactor Using Acoustic Phenomenon
Published 2018-01-01“…It is used to acquire a more accurate method in order to simulate the various accidents of reactor core. Neutronic equations should be solved concurrently by means of DRAGON 4 and DONJON 4 coupling codes. …”
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282
Tests of Lorentz Symmetry in Single Beta Decay
Published 2014-01-01“…Experimental signatures of a dimension-three operator for Lorentz violation which are unobservable in neutrino oscillations are described for the decay of polarized and unpolarized neutrons as well as for measurements of the spectral endpoint in beta decay.…”
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283
Searching for an optimal fuel for a supercritical water reactor (SCWR) to dispose of minor actinides resulting from the nuclear waste
Published 2025-02-01“…A three-dimensional model of a supercritical water reactor (SCWR) has been designed using MCNPX to make a comprehensive neutronic analysis. MAs with a concentration of 1 % have been added to UO2, (Th, U)O2, (Th, 233U)O2 and (Th, rgPu)O2. …”
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284
Status of the GRANIT Facility
Published 2015-01-01“…The GRANIT facility is a follow-up project, which is motivated by the recent discovery of gravitational quantum states of ultracold neutrons. The goal of the project is to approach the ultimate accuracy in measuring parameters of such quantum states and also to apply this phenomenon and related experimental techniques to a broad range of applications in particle physics as well as in surface and nanoscience studies. …”
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285
Calculation of Involved and Noninvolved Organs Doses in Carbon Therapy of Brain Tumor Using GEANT4 Simulation Toolkit
Published 2024-10-01“…Beam parameters were also evaluated per ICRU guidelines.Results: This study estimated the flux and dose distributions of secondary particles—protons, electrons, neutrons, alpha particles, and photons—in the brain tumor and surrounding tissues. …”
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286
EFFECTS OF COMPONENT AND THICKNESS OF METAL LAYER ON RESPONSE FUNCTIONS OF BONNER SPHERE EXTENDED SPECTROMETER USING MCNP CALCULATION
Published 2017-09-01“…The response functions of the Bonner Sphere Extended spectrometer were calculated using the MCNP program. For incident neutrons above 10MeV, Tungsten was an excellent heavy material layer as it yielded the highest response among tested materials. …”
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287
Review of JAEA’s Monte Carlo codes for nuclear reactor core analysis
Published 2025-01-01“…Recently improvements to MVP have been focused on the development of an advanced neutronics/thermal-hydraulics coupling code. JAEA has also developed a new Monte Carlo solver Solomon for criticality safety analysis. …”
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288
Gravitational Resonance Spectroscopy with an Oscillating Magnetic Field Gradient in the GRANIT Flow through Arrangement
Published 2014-01-01“…Gravitational resonance spectroscopy consists in measuring the energy spectrum of bouncing ultracold neutrons above a mirror by inducing resonant transitions between different discrete quantum levels. …”
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289
Code Development in Coupled PARCS/RELAP5 for Supercritical Water Reactor
Published 2014-01-01“…In PARCS, modification is focused on extending the water property tables to supercritical pressure, modifying the variable mapping input file and related code module for processing thermal-hydraulic information from separated coolant/moderator channels, and modifying neutronics feedback module to deal with the separated coolant/moderator channels. …”
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290
Can We Observe the Gravitational Quantum States of Positronium?
Published 2015-01-01“…The proposed scheme employs the flow-throw technique used for the first observation of this effect with neutrons. Collimation and Stark deceleration of Rydberg positronium atoms allow selecting the required velocity class. …”
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291
Nucleosynthesis in the Cosmos: What we think we know and forthcoming questions
Published 2022-01-01“…Se formula una prospectiva crítica sobre investigaciones futuras que permitirán validar, modificar o rechazar hipótesis hechas, las cuales involucrarán observaciones conjuntas que abarcan mediciones más finas de radiación cósmica de fondo, cúmulos de galaxias y de ondas gravitacionales producidas por choques de estrellas de neutrones. La información obtenida se combinará con restricciones dadas por modelos teóricos. …”
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292
Influence of elevated temperature exposure on the residual compressive strength and radiation shielding efficiency of ordinary concrete incorporating granodiorite and ceramic powde...
Published 2025-01-01“…Thus, the studied CM-concrete samples provide the best protection against fast neutrons which pave the way for the utilization of industrial waste, especially ceramic and granodiorite waste, in enhancing the properties of concrete towards radiation shielding against gamma rays and neutrons.…”
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293
Ludwig: A Training Simulator of the Safety Operation of a CANDU Reactor
Published 2011-01-01“…A comprehensive set of online graphical displays are provided giving an in-depth understanding of transient neutronic and thermal hydraulic response of the power plant. …”
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294
About the theory of relativity
Published 2023-09-01“…Photons, electrons, protons, neutrons move in space in helical spirals. The equations of the special theory of relativity are not applicable to particles that have particle‑wave properties. …”
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295
Prospects for Studies of the Free Fall and Gravitational Quantum States of Antimatter
Published 2015-01-01“…In the ultimate limit of smallest vertical velocities, antihydrogen atoms are settled in gravitational quantum states in close analogy to ultracold neutrons (UCNs). Positronium is another neutral system involving antimatter for which free fall under gravity is currently being investigated at UCL. …”
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296
Efecto de la concentración de silicio en suelo sobre el rendimiento agrícola en cultivos de frutilla Fragaria × ananassa (Duchesne ex Weston) Duchesne ex Rozier en Areguá, Pirayú,...
Published 2024-12-01“…La cuantificación del silicio en el suelo se realizó mediante la técnica de análisis por activación neutrónica empleando una fuente isotópica de neutrones de Americio-Berilio con flujo de neutrones de 5,0.107 ns-1cm-2, un detector de centelleo de ioduro de sodio de 2” x 2” acoplado a una tarjeta multicanal Accuspec y un estándar de silicio de procedencia alemana, con 97,5% de pureza. …”
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297
A Simple Formula for Local Burnup and Isotope Distributions Based on Approximately Constant Relative Reaction Rate
Published 2016-01-01“…The present method considers two extreme conditions of neutrons penetrating the fuel rod. Based on these considerations, the formula is obtained to calculate the reaction rates of 235U, 238U, and 239Pu and straightforward the local burnup and the isotope distributions. …”
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298
Comparative Analysis of the Dalat Nuclear Research Reactor with HEU Fuel Using SRAC and MCNP5
Published 2017-01-01“…Neutronics analysis has been performed for the 500 kW Dalat Nuclear Research Reactor loaded with highly enriched uranium fuel using the SRAC code system. …”
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299
Numerical Simulation of Water-Based Alumina Nanofluid in Subchannel Geometry
Published 2012-01-01“…Coupled thermohydrodynamic and neutronic investigations are further needed to streamline the nanoparticles and to optimize their concentration.…”
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300
Access and sustainment of ELMy H-mode operation for ITER pre-fusion power operation plasmas using JINTRAC
Published 2025-01-01“…Hydrogen or helium plasma discharges are used exclusively in these stages to ensure negligible production of neutrons from fusion reactions. With the expected higher L–H power threshold of hydrogen and helium plasmas compared to corresponding D and D/T plasmas, it is uncertain whether available auxiliary power systems are sufficient to operate in stable type-I ELMy H-mode. …”
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