Publications associées à Particule β

Verification of selective laser melting heat source models with operando X-ray diffraction data

Helena Van Swygenhoven, Steven Van Petegem, Samy Hocine

The output obtained from operando X-ray diffraction experiments on Ti-6Al-4V is used to verify the accuracy of four FEM models in predicting the temperature evolution of the solidified domain, the cooling rates of the alpha and beta phases, and the influen ...

ELSEVIER2021

Lifshitz point at commensurate melting of chains of Rydberg atoms

Frédéric Mila, Natalia Chepiga

The recent investigation of chains of Rydberg atoms has brought back the problem of commensurateincommensurate transitions into the focus of current research. In two-dimensional classical systems or in one-dimensional quantum systems, the commensurate melt ...

AMER PHYSICAL SOC2021

Experimental studies of plasma-antenna coupling with the JET Alfven Eigenmode Active Diagnostic

Ambrogio Fasoli, Duccio Testa, Mikhail Maslov

This paper presents a dedicated study of plasma-antenna (PA) coupling with the Alfven Eigenmode Active Diagnostic (AEAD) in JET. Stable AEs and their resonant frequencies f, damping rates gamma < 0, and toroidal mode numbers n are measured for various PA s ...

IOP PUBLISHING LTD2021

Ion cyclotron resonance heating with shifted separatrix

Jonathan Graves, Hamish William Patten

Ion cyclotron resonance heating, which we refer to as ICRH-SS, with the quasilinear (QL) separatrix (i.e., the separatrix in the space of QL routes of ion acceleration) located in the region of passing particles is studied. The aim of ICRH-SS is to minimiz ...

2021

Buoyancy-driven convection of droplets on hot nonwetting surfaces

François Gallaire, Eunok Yim

The global linear stability of a water drop on hot nonwetting surfaces is studied. The droplet is assumed to have a static shape and the surface tension gradient is neglected. First, the nonlinear steady Boussinesq equation is solved to obtain the axisymme ...

AMER PHYSICAL SOC2021

Tomographic reconstruction of the runaway distribution function in TCV using multispectral synchrotron images

Basil Duval, Joan Decker, Umar Sheikh, Artur Perek, Gergely Papp

Synchrotron radiation observed in a quiescent Tokamak a Configuration Variable (TCV) runaway discharge is studied using filtered camera images targeting three distinct wavelength intervals. Through the tomographic simultaneous algebraic reconstruction tech ...

IOP PUBLISHING LTD2021

Reconstructing the base field from imaginary multiplicative chaos

Juhan Aru, Janne Matias Junnila

We show that the imaginary multiplicative chaos exp(i beta Gamma) determines the gradient of the underlying field Gamma for all log-correlated Gaussian fields with covariance of the form -log|x-y|+g(x,y) with mild regularity conditions on g, for all d >= 2 ...

WILEY2021

On the road to ITER NBIs: SPIDER improvement after first operation and MITICA construction progress

Riccardo Agnello, Michele Fadone, Elena Gaio, Alberto Ferro

To reach fusion conditions and control the plasma configuration in ITER, the next step in tokamak fusion research, two neutral beam injectors (NBIs) will supply 16.5 MW each, by neutralizing accelerated negative hydrogen or deuterium ions. The requirements ...

2021

The stereodynamics of ion forming reactions

Andreas Osterwalder, Sean Dennis Steven Gordon

Energy transfer reactions occur in all areas of chemistry. One fundamental form of this is demonstrated by reactions in which an electronically excited atom transfers energy to a neutral, resulting in spontaneous ionisation, potentially combined with compl ...

2020

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Particule β

Verification of selective laser melting heat source models with operando X-ray diffraction data

Lifshitz point at commensurate melting of chains of Rydberg atoms

Experimental studies of plasma-antenna coupling with the JET Alfven Eigenmode Active Diagnostic

Ion cyclotron resonance heating with shifted separatrix

Buoyancy-driven convection of droplets on hot nonwetting surfaces

Tomographic reconstruction of the runaway distribution function in TCV using multispectral synchrotron images

Reconstructing the base field from imaginary multiplicative chaos

On the road to ITER NBIs: SPIDER improvement after first operation and MITICA construction progress

The stereodynamics of ion forming reactions

Schwinger production of scalar particles during and after inflation from the first principles

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Chattez avec Graph Search

Verification of selective laser melting heat source models with operando X-ray diffraction data

Lifshitz point at commensurate melting of chains of Rydberg atoms

Experimental studies of plasma-antenna coupling with the JET Alfven Eigenmode Active Diagnostic

Buoyancy-driven convection of droplets on hot nonwetting surfaces

On the road to ITER NBIs: SPIDER improvement after first operation and MITICA construction progress

Ion cyclotron resonance heating with shifted separatrix

Tomographic reconstruction of the runaway distribution function in TCV using multispectral synchrotron images

Schwinger production of scalar particles during and after inflation from the first principles

Reconstructing the base field from imaginary multiplicative chaos

The stereodynamics of ion forming reactions