Fission gas release from UO2 nuclear fuel: A review
Gaseous fission product generation, transport, and release can have a large impact on
nuclear fuel performance, degrading fuel and fuel–cladding gap properties. Over the past …
nuclear fuel performance, degrading fuel and fuel–cladding gap properties. Over the past …
Unit mechanisms of fission gas release: Current understanding and future needs
Gaseous fission product transport and release has a large impact on fuel performance,
degrading fuel and gap properties. While gaseous fission product behavior has been …
degrading fuel and gap properties. While gaseous fission product behavior has been …
Fission gas diffusion and release for Cr2O3-doped UO2: From the atomic to the engineering scale
The anticipated benefits of large grains in Cr 2 O 3-doped UO 2 pellets include improved
mechanical and fission gas retention properties. To support the assessment of fission gas …
mechanical and fission gas retention properties. To support the assessment of fission gas …
Cluster dynamics simulation of xenon diffusion during irradiation in UO2
Diffusion of fission gas in UO 2 nuclear fuel impacts several important performance metrics,
such as fission gas release, swelling, and thermal conductivity. Current empirical models of …
such as fission gas release, swelling, and thermal conductivity. Current empirical models of …
Accelerating nuclear fuel development and qualification: Modeling and simulation integrated with separate-effects testing
An approach to transform and accelerate nuclear fuel development and qualification is
outlined. The approach exploits advanced modeling and simulation at the outset to inform …
outlined. The approach exploits advanced modeling and simulation at the outset to inform …
Parametrization of for noncollinear magnetic configurations: Multipolar magnetism in
To explore the formation of noncollinear magnetic configurations in materials with strongly
correlated electrons, we derive a noncollinear LSDA+ U model involving only one parameter …
correlated electrons, we derive a noncollinear LSDA+ U model involving only one parameter …
Density functional theory calculations of self-and Xe diffusion in U3Si2
Abstract Uranium silicide, U 3 Si 2, has been proposed as an advanced nuclear fuel to be
used in light water reactors (LWRs). Development of this alternative to the predominant …
used in light water reactors (LWRs). Development of this alternative to the predominant …
The defect chemistry of UO2±x from atomistic simulations
Control of the defect chemistry in UO 2±x is important for manipulating nuclear fuel
properties and fuel performance. For example, the uranium vacancy concentration is critical …
properties and fuel performance. For example, the uranium vacancy concentration is critical …
The role of irradiation-enhanced interstitial diffusion in over-pressurizing fission gas bubbles in UO2
Fission gas bubbles in UO 2 nuclear fuel have been observed to exhibit pressures in excess
of the equilibrium bubble pressure; however, the cause of bubble over-pressurization has …
of the equilibrium bubble pressure; however, the cause of bubble over-pressurization has …
Atomistic modeling of out-of-pile xenon diffusion by vacancy clusters in UO2
Diffusion of Xe atoms in UO 2 fuel is important for nuclear fuel performance, and is enabled
by interaction with U and O vacancies. Previous work using atomistic calculations based on …
by interaction with U and O vacancies. Previous work using atomistic calculations based on …