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Related papers: Fission Enhanced diffusion of uranium in zirconia

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We perform first-principles path integral Monte Carlo (PIMC) and density functional theory molecular dynamics (DFT-MD) calculations to explore warm dense matter states of LiF. Our simulations cover a wide density-temperature range of…

Plasma Physics · Physics 2017-04-19 K. P. Driver , B. Militzer

The nature of the often reported room temperature ferromagnetism in transition metal doped oxides is still a matter of huge debate. Herein we report on room temperature ferromagnetism in high quality Co-doped ZnO (Zn1-xCoxO) bulk samples…

In this article we investigate through molecular dynamics simulations the diffusion behavior of the TIP4P/2005 water when confined in pristine and deformed carbon nanotubes (armchair and zigzag). To analyze different diffusive mechanisms,…

Soft Condensed Matter · Physics 2021-02-03 Bruno H. S. Mendonça , Patricia Ternes , Evy Salcedo , Alan B. de Oliveira , Marcia C. Barbosa

We present a multi-purpose mirror furnace designed for synchrotron X-ray experiments. The furnace is optimized specifically for dark-field X-ray microscopy (DFXM) of crystalline materials at the beamline ID06 of the ESRF. The furnace can…

We present quantum molecular dynamics calculations of thermophysical properties of solid and liquid zirconium in the vicinity of melting. An overview of available experimental data is also presented. We focus on the analysis of thermal…

Materials Science · Physics 2022-08-10 M. A. Paramonov , D. V. Minakov , V. B. Fokin , D. V. Knyazev , G. S. Demyanov , P. R. Levashov

Thermal conductivity of the most abundant element in the planetary core, Iron (Fe) is measured up to Earth's outer core pressure $\sim 120$ GPa. The measurements are carried out using the laser heated diamond anvil cell facility, where the…

Materials Science · Physics 2016-10-14 Pinku Saha , Goutam Dev Mukherjee

We present a robust method for measuring the diffusion coefficients of warm atoms in buffer gases. Using optical pumping, we manipulate the atomic spin in a thin cylinder inside the cell. Then we observe the spatial spread of optically…

Atomic Physics · Physics 2014-07-24 Michal Parniak , Wojciech Wasilewski

The neutron yields observed in inertial confinement fusion experiments for higher convergence ratios are about two orders of magnitude smaller than the neutron yields predicted by one-dimensional models, the discrepancy being attributed to…

Nuclear Experiment · Physics 2007-05-23 Silviu Olariu

To study the influence of the structural properties of UCx targets on their release properties, several types of targets using different precursors (carbon and uranium) were synthesized, characterized, irradiated and heated leading to the…

Instrumentation and Detectors · Physics 2020-12-09 Julien Guillot , Brigitte Roussière , Sandrine Tusseau-Nenez , Denis S. Grebenkov , Maxime Ignacio

An electron beam may be used to generate bremsstrahlung photons that go on to create photoneutrons within metals. This serves as a low-energy neutron source for irradiation experiments [1-3]. In this article, we present simulation results…

Accelerator Physics · Physics 2024-04-12 Andrew K. Gillespie , Cuikun Lin , R. V. Duncan

Zirconium alloys are widely used in the nuclear industry because of their high strength, good corrosion resistance and low neutron absorption cross-section. However, zirconium has strong affinity for hydrogen which leads to hydrogen…

Materials Science · Physics 2014-08-21 T. Maimaitiyili , A. Steuwer , J. Blomquist , B. Matthew , Z. Olivier , J. Andrieux , C. Bjerken , R. Fabienne

The Target Absorbers for Neutrals (TANs) represent one of the most radioactive regions in the Large Hadron Collider (LHC). Seven 40 cm long fused silica rods with different dopant specifications, manufactured by Heraeus, were irradiated in…

Nuclear emulsions are capable of very high position resolution in the detection of ionizing particles. This feature can be exploited to directly resolve the micrometric-scale fringe pattern produced by a matter-wave interferometer for low…

Instrumentation and Detectors · Physics 2018-05-09 S. Aghion , A. Ariga , M. Bollani , A. Ereditato , R. Ferragut , M. Giammarchi , M. Lodari , C. Pistillo , S. Sala , P. Scampoli , M. Vladymyrov

Spectral Energy Distribution (SED) fitting in the far-infrared (FIR) is greatly limited by a dearth of data and an excess of free parameters - from galaxies' dust composition, temperature, mass, orientation, opacity, to heating from AGN.…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Caitlin M. Casey

A model of the interstitial diffusion of ion-implanted boron during rapid thermal annealing of silicon layers previously amorphized by implantation of germanium has been proposed. It is supposed that the boron interstitials are generated…

Materials Science · Physics 2009-05-01 O. I. Velichko , N. V. Kniazhava

Currently,lanthanide ions doped luminescence materials applying as optical thermometers have arose much concern. Basing on the different responses of two emissions to temperature, the fluorescence intensity ratio (FIR) technique can be…

Materials Science · Physics 2023-02-22 Yude Niu , Yuzhen Wang , Kaiming Zhu , Wanggui Ye , Zhe Feng , Hui Liu , Xin Yi , Yihuan Wang , Xuanyi Yuan

A next-generation, high-flux DD neutron generator has been designed, commissioned, and characterized, and is now operational in a new facility at the University of California Berkeley. The generator, originally designed for 40Ar/39Ar dating…

Experimental efforts to measure neutrinos by radio-frequency (RF) signals resulting from neutrino interactions in-ice have intensified over the last decade. Recent calculations indicate that one may dramatically improve the sensitivity of…

Instrumentation and Methods for Astrophysics · Physics 2017-01-16 R. Alvarez , D. Z. Besson , I. Bikov , J. C. Hanson , A. M. Johannesen , J. Macy , S. Prohira , J. Stockham , M. Stockham , Al. Zheng , Am. Zheng

The transmission and reflection spectra from a right-handed chiral sculptured zirconia thin film are calculated using the piecewise homogeneity approximation method and the Bruggeman homogenization formalism by considering that the…

Optics · Physics 2010-11-02 Ferydon Babaei , Hadi Savaloni

Hydride precipitation in zirconium cladding materials can damage their integrity and durability.Service temperature and material defects have a significant effect on the dynamic growth of hydrides. In this study, we have developed a phase…