Jan Weiland

2024

Predictive modeling of NSTX discharges with the updated multi-mode anomalous transport module

PLASMA PROFILE PREDICTION IN NSTX DISCHARGES USING THE UPDATED MULTI-MODE ANOMALOUS TRANSPORT MODULE

2020

Global scaling of the heat transport in fusion plasmas

Full-orbit and drift calculations of fusion product losses due to explosive fishbones on JET

Statistical validation of multi-mode model for anomalous transport to high beta and ITB tokamak scenarios in KSTAR

2019

Drift wave theory for transport in tokamaks

Measuring fast ions in fusion plasmas with neutron diagnostics at JET

2019

Overview of the JET preparation for deuterium-tritium operation with the ITER like-wall

Microtearing Modes in Low Collisionality NSTX Discharges

Review of recent experimental and modeling advances in the understanding of lower hybrid current drive in ITER-relevant regimes

Scenario development for the observation of alpha-driven instabilities in JET DT plasmas

2018

Analysis of possible improvement of the plasma performance in JET due to the inward spatial channelling of fast-ion energy

2018

Electron acceleration in a JET disruption simulation

2018

Observations and modelling of ion cyclotron emission observed in JET plasmas using a sub-harmonic arc detection system during ion cyclotron resonance heating

Light impurity transport in JET ILW L-mode plasmas

Observation of enhanced ion particle transport in mixed H/D isotope plasmas on JET

W transport and accumulation control in the termination phase of JET H-mode discharges and implications for ITER

Extending the validation of multi-mode model for anomalous transport to high beta poloidal tokamak scenario in DIII-D

High fusion performance at high T<inf>i</inf>/T<inf>e</inf> in JET-ILW baseline plasmas with high NBI heating power and low gas puffing

Evidence of ⁹Be + p nuclear reactions during 2ω <inf>CH</inf> and hydrogen minority ICRH in JET-ILW hydrogen and deuterium plasmas

Toroidal drift modes driven by the magnetic drift resonances

Comparison of runaway electron generation parameters in small, medium-sized and large tokamaks - A survey of experiments in COMPASS, TCV, ASDEX-Upgrade and JET

2018

Inter-ELM evolution of the edge current density in JET-ILW type i ELMy H-mode plasmas

14 MeV calibration of JET neutron detectors-phase 1: Calibration and characterization of the neutron source

Equilibrium reconstruction at JET using Stokes model for polarimetry

Integrated modelling of H-mode pedestal and confinement in JET-ILW

The role of zonal flows in reactive fluid closures

TAE stability calculations compared to TAE antenna results in JET

EFFECTS OF MICROTEARING MODES ON THE EVOLUTION OF ELECTRON TEMPERATURE PROFILES IN HIGH COLLISIONALITY NSTX DISCHARGES

2018

An improved model for the accurate calculation of parallel heat fluxes at the JET bulk tungsten outer divertor

MHD spectroscopy of JET plasmas with pellets via Alfvén eigenmodes

2018

Study of the parametric dependence of linear and nonlinear microtearing modes in conventional tokamak discharges

Modelling of JET hybrid plasmas with emphasis on performance of combined ICRF and NBI heating

Effects of nitrogen seeding on core ion thermal transport in JET ILW L-mode plasmas

2017

Effect of collisions on drift instabilities in a field reversed configuration under conditions of magneto-inertial fusion

Efficient generation of energetic ions in multi-ion plasmas by radio-frequency heating

UNDERSTANDING AND PREDICTION OF INTERNAL TRANSPORT BARRIERS IN TOKAMAKS USING INTEGRATED MODELING

Overview of the JET results in support to ITER

Axisymmetric global Alfvén eigenmodes within the ellipticity-induced frequency gap in the Joint European Torus

2016

Microtearing modes in tokamak discharges

Review of Mixing Length Estimates and Effects of Toroidicity in a Fluid Model for Turbulent Transport in Tokamaks

2016

On the normalization of transport from ITG modes

Excitation of Zonal Flows by Ion temperature gradient Modes excited by the Fluid Resonance

2015

Reversal of particle flux in collisional-finite beta tokamak discharges

Transition from a coherent three wave system to turbulence with application to the fluid closure

Thermal instabilities in drift wave turbulence

Zonal flows near marginal stability in drift wave transport

Simulations of the L-H transition dynamics with different heat and particle sourses

2014

Simulations of the L-H transition on experimental advanced superconducting Tokamak

2013

Physics basis of Multi-Mode anomalous transport module

Overview of the JET results with the ITER-like wall

Inward particle transport at high collisionality in the EAST tokamak

Nonlinear fluid equations for fully toroidal electromagnetic waves for the core tokamak plasma

Different Ways of Describing Plasma Dynamics

Kinetic Description of Low Frequency Modes in Inhomogeneous Plasma

Nonlinear Theory

Instabilities Associated with Fast Particles in Toroidal Confinement Systems

2012

On the physics description of fusion plasmas i

Stability and Transport in Magnetic Confinement Systems

Low Frequency Modes in Inhomogeneous Magnetic Fields

Fluid Description for Low Frequency Perturbations in an Inhomogeneous Plasma

Kinetic Descriptions of Low Frequency Modes Obtained by Gyroaveraging

On the physics description of fusion plasmas II

Transport, Overview and Recent Developments

Introduction

Closure at the Irreducible Part of the Fourth Moment for the case of Constant Coefficients in the Fokker-Planck Equation

NBI modulation experiments to study momentum transport and magnetic field induced ripple torque on JET

Permittivity of Plasma in Random Fields of Moderate Intensity

2011

Comparison of Edge and Internal Transport Barriers in Drift Wave Predictive Simulations

Ion heat transport studies in JET

2011

A Key to Improved Ion Core Confinement in the JET Tokamak: Ion Stiffness Mitigation due to Combined Plasma Rotation and Low Magnetic Shear

Two-fluid Analysis of the Geodesic Acoustic Mode in Tokamaks

Effects of flow shear on the correlation length of drift wave turbulence

Overview of the JET results

Overview of toroidal momentum transport

Fluid Closure, Theory, Relations to Particle Pinches, Fluid Resonances

Simulations of the formation of a transport barrier in four channels including turbulent poloidal momentum spinup

2010

Perturbative studies of toroidal momentum transport using neutral beam injection modulation in the Joint European Torus: Experimental results, analysis methodology, and first principles modelling

A Key to Improved Ion Core Confinement in the JET Tokamak: Ion Stiffness Mitigation due to Combined Plasma Rotation and Low Magnetic Shear

Main stabilization mechanisms in the barrier of the H-mode

Plasma physics: Turbulence at a pinch

JET Rotation Experiments towards the Capability to Predict the Toroidal Rotation Profile

2010

Electromagnetic effects on toroidal momentum transport

Toroidal Momentum Transport

2010

Nonlinear condensation modes

Fluid and Kinetic Modelling on Timescales Longer than the Confinement Time in Bounded Systems

Non-Markovian Effects in Drift-type Turbulence

PTRANSP: Predictive Integrated Tokamak Modeling

Symmetry breaking effects of toroidicity on toroidal momentum transport

Turbulent Transport in Fusion Plasmas, Effects of Toroidicity and Fluid Closure

Multi-mode modeling of toroidal momentum confinement in tokamaks

Collisionless trapped electron and ion temperature gradient modes in an advanced tokamak equilibrium

Non-Markovian renormalization of kinetic coefficients for drift-type turbulence in magnetized plasmas

Non-Markovian effects in turbulent diffusion in magnetized plasmas

Improved model for transport driven by drift modes in tokamaks

Integrated Modeling Simulations of Toroidal Momentum Transport in Tokamaks

The toroidal momentum diffusivity in a tokamak plasma: A comparison of fluid and kinetic calculations

Nonlinear Excitation of Zonal Flows and Geodesic Acoustic Modes in the Edge of Tokamak Plasmas

Resistive edge mode instability in stellarator and tokamak geometries

Relaxation in Plasmas with Several Types of Free Energy

Influence of radio frequency ponderomotive force on anomalous impurity transport in tokamaks

Study of collisionless TE and ITG modes in an ITER-like equilibrium

Influence of RF fields on anomalous impurity transport in tokamaks

Anomalous impurity transport in tokamaks in the presence of RF fields

Symmetry breaking effects on toroidal momentum transport

Particle Trapping and Non-Resonant Interaction in a Problem of Stochastic Acceleration

Influence of magnetic shear on impurity transport

Predictive simulations of toroidal momentum transport at JET

On advanced fluid modelling of drift wave turbulence

Critical Gradient Response of the Weiland Model

Toroidal and poloidal momentum transport studies in JET

Progress on Anomalous Transport in Tokamaks, Drift Waves and Nonlinear Structures

Parametric dependences of impurity transport in neoclassical, reactive drift wave and gyrokinetic descriptions

Toroidal and poloidal momentum transport studies in tokamaks

Influence of magnetic shear on impurity transport

On advanced fluid modelling of drift wave turbulence

Plasma rotation and momentum transport studies at JET

Particle Pinches in Fluid and Kinetic Descriptions

Impurity transport in ITER-like plasmas

Zonal flow generation in collisionless trapped electron mode turbulence

Investigation of electron heat pinch in ASDEX-Upgrade

Impurity transport in ITER-like plasma

Density and temperature modifications with electron cyclotron power injection in quisent double barrier discharges on DIII-D

Fully predictive time-dependent transport simulations of ITB plasmas in JET

Anomalous momentum transport due to drift-waves in tokamaks

Heat pinches in electron-heated tokamak plasmas: theoretical turbulence models vs. experiments

Excitation of Zonal Flows and Fluid Closure

Anisotropic diffusion across an external magnetic field and large-scale fluctuations in magnetized plasmas

Drift Wave Transport Scalings Introduced by Varying Correlation Length

Effects of Temperature Ratio on JET Transport in Hot Ion and Hot Electron Regimes

Collisionality and Shear Dependences of Density Peaking in JET and Extrapolation to ITER

Effect of Poloidal Rotation on the Dynamics of thew ITB’s and Transport in JET Plasmas

Particle diffusion in external field of random Langmuir waves: short and long times

Anomalous Particle Transport in DT Plasmas

Progress in the theory of anomalous transport in tokamaks, drift waves and nonlinear structures

JETTO Simulations of Te/Ti Effects on Plasma Confinement

Stochastic acceleration in peaked spectrum

Electromagnetic Effects on quasilinear turbulent particle transport

Diffusion in velocity space caused by strong random fields

Predictive modelling of electron temperature modulation experiments in JET L and H mode plasmas

Progress in Transport Modelling of Internal Transport Barrier Plasmas in JET

Analytical Eigenvalue Solution for ηi Modes of General Modewidth

Anomalous particle and impurity transport in JET and implications for ITER

Status of and prospects for advanced tokamak regimes from multi-machine comparisons using the ‘International Tokamak Physics Activity’ database

Physics of Transports in Tokamaks

Shear, temperature gradient and collisionality dependences of particle pinches in JET

Progress in Understanding Heat Transport at JET

Effects of temperature ratio on JET transport in hot ion and hot electron regimes

Comparison of anomalous and neoclassical contributions to core particle transport in tokamak discharges

Self-Consistent Theory of Zonal Flows in Ion Temperature Gradient Turbulence

2002

Zonal flow generation in ITG turbulence

2001

Effects of cross-sectional elongation on the resistive edge modes

2000

Effects of non-circular tokamak geometry on ion-temperature-gradient driven modes

Transport due to ion-temperature-gradient-driven magnetic drift modes