Transport and turbulence reduction with negative triangularity : Correlation ECE measurements in TCV

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JET, the only tokamak capable of operating with deuterium-–tritium (D-T) fuel (since TFTR was shutdown in 1999), has provided essential experimental data to support ITER and DEMO design and operation. Within the EUROfusion Tokamak Exploitation Work Package, JET completed its final campaigns (2022--2023), culminating in the third D-T campaign (DTE3). These experiments addressed key challenges in plasma scenarios, exhaust control, and tritium management under reactor-relevant conditions. Significant progress

Research on the Tokamak à Configuration Variable (TCV) addresses a wide range of key questions relevant to ITER and future fusion power plants. Over the past two years, highly productive experimental campaigns have led to major advances across several areas: the ITER baseline scenario; pedestal properties in low-collisionality, peeling-limited conditions; and the development of high-

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, non-inductive regimes. Alternative high-confinement scenarios have likewise received significant attention, with re

Helicon waves (also known as whistler waves) satisfying the normal wave-particle cyclotron resonance are observed to limit the growth and maximum energy of relativistic electrons (REs) in low-density Ohmic DIII-D tokamak plasmas. Following the application of helicon waves, pitch-angle scattering of high-energy REs causes an increase in both synchrotron and electron-cyclotron emissions. The hard x-ray emission, a proxy for the RE population, ceases to grow. Energy-resolved hard x-ray measurements also show a

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Utilizing the TokaMaker code, this manuscript presents a scheme for determining the optimal locations of poloidal field coils in tokamak configurations, aimed at reducing the currents required to reproduce target equilibrium in future devices. The definition of the coil position space is described, as well as the cost function is to be minimized, which incorporates the constraints of the problem. The MANTA reactor design, featuring strong negative triangularity shaping, is considered as a test example, wher

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The transition of the energy system towards decentralized renewable energy sources poses both opportunities and challenges for quarters, districts, and municipalities. To aid local authorities and policy makers in navigating this complex topic, we present a decision-support and pathway recommendations tool. The tool is preloaded with publicly available data and offers modeled data for missing aspects to both display the status quo and enable an assessment of different options in future scenarios. These scen

JT-60SA is currently the world's largest superconducting tokamak. It accelerates the realization of fusion energy by supporting ITER exploitation and complementing it in addressing key physics and engineering issues for DEMO reactors. The main targets of JT-60SA are breakeven-equivalent high-temperature deuterium plasmas and high-βsteady-state plasmas. To achieve these goals, laser-aided diagnostics with high spatial resolution are essential for detailed physics studies. In Operation Phase 1, a tangential s

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A novel first-principles self-consistent model that couples plasma and neutral atom physics suitable for the simulation of turbulent plasma behaviour in the tokamak edge region has been developed [1] and implemented in the GBS code [2]. While the plasma is modelled by the drift-reduced two fluid Braginskii equations, a kinetic model is used for the neutrals, valid in short and in long mean free path scenarios. The model includes ionization, charge-exchange, recombination, and elastic collisional processes.

The mechanism regulating the equilibrium electrostatic potential in the scrape-off layer (SOL) of magnetic confinement devices is elucidated. Based on a generalized Ohm's law and the boundary conditions at the magnetic presheath entrance, an analytical expression for the equilibrium electrostatic potential is derived. Results imply that the relative importance of the plasma dynamics at the sheath and far away from the wall in setting the value of the electrostatic potential depends on the density and temper

Simulations of edge turbulence are particularly challenging due to the presence of large amplitude fluctuations and to the coupling of equilibrium and fluctuating scales. While validating edge simulations is necessary to assess the accuracy of our understanding, difficulties in experimental diagnostics and the lack of a precise validation methodology have, to date, severely limited the process. The Global Braginskii Solver (GBS) code has been developed to simulate plasma turbulence in edge-relevant conditio

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Transport and turbulence reduction with negative triangularity : Correlation ECE measurements in TCV

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Results from the last DD and DT JET campaigns in the framework of the EUROfusion Tokamak Exploitation Work Package Activity

Progress and innovations in the TCV tokamak research programme

First Demonstration of Resonant Pitch-Angle Scattering of Relativistic Electrons by Externally Launched Helicon Waves

Role of plasmoid drift in the efficiency and reliability of shattered pellet injection

Poloidal field coils optimization for the MANTA tokamak using TokaMaker

Recent progress with Diagnostic Neutral Beam Injector at TCV tokamak

Supporting the Integration of Renewable Energy in Communities and Districts by Automated, Online Impact Assessment

Laser-aided diagnostics of JT-60SA

Analysis and Reproduction of Stainless-steel Integral Experiments Towards Nuclear Data Assimilation

Extending the Supercontinuum Spectrum in Fully Etched Thick Aluminum Nitride Waveguides

Model-based electron density estimation using multiple diagnostics on TCV

Numerical simulation of deck de-icing using energy pile systems

An improved hybrid electron model for global gyrokinetic simulations using the ORB5 PIC code

Computational challenges in magnetic-confinement fusion physics

Impact of neutral atoms on plasma turbulence in the tokamak edge region

On the electrostatic potential in the scrape-off layer of magnetic confinement devices

Progressive steps towards global validated simulation of edge plasma turbulence

Global two-fluid simulations of tokamak Scape-Off-Layer turbulence

Suprathermal ion transport theory and experiments in the SMT

Simulation of tokamak SOL turbulence