Development and first operation of a cavity ring down spectroscopy diagnostic in the negative ion source SPIDER

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An upgrade of the Tokamak à Chauffage Alfvén Brésilien (TCABR) is being designed to make it capable of creating a well controlled environment where the impact of resonant magnetic perturbation (RMP) fields on edge localised modes can be addressed over a wi ...

This paper describes the extensive progress that has been made in the understanding of tokamak pedestal physics since the 2007 publication of 'Progress in the ITER Physics Basis' (Ikeda 2007 Nucl. Fusion 47 E01-S500). It serves as Chapter 3 of the 2025 Nuc ...

High amplitude energetic particle geodesic acoustic mode (EGAM) oscillations driven by Neutral Beam (NBI) injected in the direction counter to the toroidal plasma current are observed in the TCV tokamak. The modes appear at frequencies close to the geodesi ...

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Runaway electrons (REs) are a concern for tokamak fusion reactors from discharge startup to termination. A sudden localized loss of a multi-megaampere RE beam can inflict severe damage to the first wall. Should a disruption occur, the existence of a RE see ...

The preparation of atom-thick porous lattice hosting & Aring;-scale pores is attractive to achieve a large ion-ion selectivity in combination with a large ion flux. Graphene film is an ideal selective layer for this if high-precision pores can be incorpora ...

The measurements using the high resolution electron cyclotron emission radiometry and the charge exchange and recombination spectroscopy are processed using analytic formulas to allow for the detection of islands as small as 1.9 cm. In contrast to large, s ...

For large scale magnets wound with cable-in-conduit conductors, the safe operation of the joints is of paramount importance to guarantee adequate reliability and stability margin of the whole magnet. For this reason, during the R & D activities undertaken ...

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Nonlinear simulations of Alfvén modes (AMs) driven by energetic particles (EPs) in the presence of turbulence are performed with the gyrokinetic particle-in-cell code ORB5. The AMs carry a heat flux, and consequently they nonlinearly modify the plasma temp ...

Integrating optically active III-V materials on silicon/insulator platforms is one potential path towards improving the energy efficiency and performance of modern computing. Here we demonstrate the applicability of direct wafer bonding combined with plasm ...

This paper presents symmetry reduction for material stochastic Lagrangian systems with advected quantities whose configuration space is a Lie group. Such variational principles yield deterministic as well as stochastic constrained variational principles fo ...

Most realistic kinetic calculations for tokamak plasmas are now required to incorporate the effect of partially ionized high-Z elements arising either from uncontrolled influxes of metallic impurities, such as tungsten in high input power regimes or from m ...

Scalable and sustainable photovoltaic technologies require low-cost and earth-abundant semiconducting materials. Zinc phosphide is purported to be an absorber material with optimal photovoltaic properties. Herein we report the electrical properties of Zn3P ...

Development and first operation of a cavity ring down spectroscopy diagnostic in the negative ion source SPIDER

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Conceptual design of ELM control coils for the TCABR tokamak

Progress in Pedestal and Edge Physics: Chapter 3 of the Special Issue: on the Path to Tokamak Burning Plasma Operation

Experimental investigation of the radial structure of energetic particle driven GAM in TCV

Design of a novel plasma shape controller for the TCV tokamak

Simulation of a scintillator-based fast ion loss detector for steady-state operation in Wendelstein 7-X (invited)

Overview of ASDEX upgrade results in view of ITER and DEMO

Simplified and Flexible Coils for Stellarators using Single-Stage Optimization

Expulsion of runaway electrons using ECRH in the TCV tokamak

Electrochemical-repaired porous graphene membranes for precise ion-ion separation

Measurement of small island characteristics using high resolution ECE and CER at DIII-D

Performance review of the joints for the ITER poloidal field coils

Lessons learned after three years of SPIDER operation and the first MITICA integrated tests

Flexible Sensor and Readout Circuitry for Continuous Ion Sensing in Sweat

Nonlinear interaction of Alfvénic instabilities and turbulence via the modification of the equilibrium profiles

Plasma etching for fabrication of complex nanophotonic lasers from bonded InP semiconductor layers

Stochastic Variational Principles for Dissipative Equations with Advected Quantities

A unified description of atomic physics for electron Fokker-Planck calculations

Zn/P ratio and microstructure defines carrier density and electrical transport mechanism in earth-abundant Zn3-xP2+y thin films