Neutron noise
Analysis of vibration-induced neutron noise using one-dimension noise diffusion theory
... mathematical problem but we have to find a physical signification of this new decomposition of the kinetic operator. In power nuclear reactors, a system of regulating rods automatically stabilizes the output power within ...
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The new 3-D multigroup diffusion neutron noise solver of APOLLO3 and a theoretical discussion of fission-modes noise
... the neutron noise anomaly recently observed in KWU ...the noise equations can be neglected and that to leading order the equation reduces to a steady-state equation for the noise flux with ...
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Assessment of the neutron noise induced by stationary fuel assembly vibrations in a light water reactor
... induced neutron noise, normalized to the respective volume-averaged neutron noise ...thermal noise sources. The general behavior is driven by the fast neutron noise ...
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A new Monte Carlo method for neutron noise calculations in the frequency domain
... Words: Neutron noise, Monte Carlo, Frequency domain ...Traditional neutron noise analysis addresses the description of small time-dependent flux fluctuations induced by small global or local ...
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The new neutron noise solver of the Monte Carlo code Tripoli-4
... INTRODUCTION Neutron noise analysis addresses the description of time-dependent flux fluctuations induced by small global or local perturbations of the macroscopic cross-sections, which may occur in nuclear ...
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A new Monte Carlo method for neutron noise calculations
... Traditional neutron noise analysis [ 1 ] addresses the description of small time-dependent flux fluctuations caused by small global or local periodic perturbations of the macroscopic cross sections, which ...
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SPECTRON, a neutron noise measurement system in frequency domain
... The standard instrumentation for recording power spectral density is made of a tunable high voltage power supply for fission chamber polarisation, a pre-amplification box in order to con[r] ...
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Sensitivity of power spectral density noise techniques to numerical parameters in analyzing neutron noise experiments
... delayed neutron fraction β eff and the prompt neutron generation time Λ to the buffer size N and the time bin size dt for the critical state Acq12 using CPSD ...
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TRIPOLI-4 and FREYA for Stochastic Analog Neutron Transport. Application to Neutron Multiplicity Counting.
... Keywords: Monte Carlo radiation transport code; Neutron Multiplicity Counting; TRIPOLI-4 ® ; FREYA; analog transport 1. Introduction Methods based on time-correlated signals have been developed over many years to ...
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Compact neutron sources for zero knowledge warhead verification via epithermal neutron transmission analysis
... The isotopic sensitivity of the system was characterized by comparing the TOF recon- structions of varied materials (AgW10, AgW20, AgW30, MoW50, and MoW75). Molar abundances and thicknesses were chosen to optimize ...
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Coherent control of neutron interferometry
... This phase turns out to be quite small and its effects are not observed in our measurements (the full derivation and small angle approximation are outlined in the[r] ...
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Colored-noise magnetization dynamics: from weakly to strongly correlated noise
... In this case, it was observed that cumulants of the spin and bath variables, assumed to be equal to zero under Gaussian assumptions, are no longer taking negligible values (like the third order cumulants of the spin, for ...
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Quasifree Neutron Knockout from $^{54}\mathrm{Ca}$ Corroborates Arising $N=34$ Neutron Magic Number
... Nuclear shell structure, as correctly described by Mayer and Jensen 70 years ago with the inclusion of an appro- priate spin-orbit force [1,2] , embodies the backbone of our understanding of the many-body structure of ...
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Procedural Phasor Noise
... the noise oscillation’s profiles is quite unique to our ...procedural noise is typically used to add fine scale unstructured details [Guingo et ...Phasor noise paves the way to the ability to ...
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Noise in Vortex Matter
... voltage noise , where the spectral intensity increases more that 4 orders of magnitude above the preamplifier background, we have not seen any difference in the magnetic noise detected with and without ...
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Low noise input circuits
... L’accès à ce site Web et l’utilisation de son contenu sont assujettis aux conditions présentées dans le site LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D’UTILISER CE SITE WEB. NRC Publicat[r] ...
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Noise transmission in buildings
... which noise is a consideration at every ...costly noise control ...adequate noise insulation between them. Finally, noise insulation design must be carried through to the last detail: there is ...
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Arctic Ocean ambient noise.
... From the examination of typical time series we observe that during periods of low level ambient noise, the CANBARX data exhibit short bursts of low frequency soun[r] ...
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Accuracy of noise measurements
... Two systems that measure the white noise spectrum of voltage reference diodes, in the frequency range from 1 kHz to 100 kHz, were analyzed to determine their accuracy.. Limita[r] ...
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Rail vehicle noise
... The tunnel absorption treatment is not relevant to the problem of noise transmls- sion to adjacent buildings since air-borne sound is disposed of by the interven[r] ...
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