Publications related to Collisionless losses of fast ions in the divertor tokamak test due to toroidal field ripple

Related publications (16)

Ideal and Resistive Impurity Parallel-velocity-gradient Instability

The presence of impurity ions in magnetically confined plasmas can significantly influence micro-instabilities, impacting cross-field transport and ultimately affecting fusion performance. In particular, Parallel Velocity Gradient (PVG) instability, common ...

IOP Publishing Ltd2025

Sensitivity of the magnetic axis to variations in the magnetic field

Salomon Jacques Jean Guinchard

Lagrangian variational principles are used to locate the magnetic axis and to determine its sensitivity to variations in the magnetic field. Only the change in the magnetic field on axis is required to determine, to lowest order, the location of the new ma ...

American Institute of Physics (AIP)2025

Proof-of-Principle Positron Source for Future Colliders

Nicolas Vallis

The PSI Positron Production experiment, known as P3 or P-cubed, is a proof-of-principle positron source and capture system that can greatly improve the state-of-the-art positron yield. The P3 project is led by the Paul Scherrer Institute (PSI) under the au ...

EPFL2024

Gyrokinetic flux-driven simulations in mixed TEM/ITG regime using a delta-f PIC scheme with evolving background

Laurent Villard, Stephan Brunner, Moahan Murugappan, Giovanni Di Giannatale

In the context of global gyrokinetic simulations of turbulence using a particle-in-cell framework, verifying the delta-f assumption with a fixed background distribution becomes challenging when determining quasi-steady state profiles corresponding to given ...

American Institute of Physics (AIP)2024

Conceptual design of a modular EC heating system for EU-DEMO

Timothy Goodman, Jean-Philippe Hogge, René Chavan, Anastasia Xydou, Cinta Lucia Marraco Borderas, Daniel Birlan, Marc Noël, Fabien Pierre Crisinel, Arnaud Clément

The European DEMO (EU-DEMO) reactor studies within EUROfusion aim to develop a fusion power plant concept. The large tokamak device needs an auxiliary heating power which, at the present stage, is provided by the Electron Cyclotron (EC) heating system with ...

IOP Publishing Ltd2024

Efficiency of dynamos from an autonomous generation of chiral asymmetry

Salim Bennouna

At high energies, the dynamics of a plasma with charged fermions can be described in terms of chiral magnetohydrodynamics. Using direct numerical simulations, we demonstrate that chiral magnetic waves (CMWs) can produce a chiral asymmetry μ5=μL-μR from a s ...

American Physical Society2024

Enhancement of electrocatalysis through magnetic field effects on mass transport

Jean-Philippe Ansermet, Magalí Alejandra Lingenfelder, Yunchang Liang

Magnetic field effects on electrocatalysis have recently gained attention due to the substantial enhancement of the oxygen evolution reaction (OER) on ferromagnetic catalysts. When detecting an enhanced catalytic activity, the effect of magnetic fields on ...

Nature Portfolio2024

Revisiting the Excitation of the Low-Lying ^{181m}Ta Isomer in Optical Laser-Generated Plasma

Fabrizio Carbone, Ivan Madan, Giovanni Maria Vanacore, Simone Gargiulo, Veronica Leccese, Benoît Guilhem Michel Binh Truc, Kjeld Adrianus Antonius Gerardus Beeks, Paolo Usai

The excitation of the ^{181m}Ta isomer in the laser-plasma scenario was claimed to have been observed more than two decades ago. However, the reported experimental findings-and the respective high excitation rate-were later questioned as they could not be ...

2024

Resonant network antennas for radio-frequency plasma sources: Theory, technology and applications

Ivo Furno, Alan Howling, Philippe Frédérique Bruno Guittienne

Resonant antennas are increasingly employed by the plasma industry, and the theory has now developed alongside the technological applications to the extent that it is timely to document the progress in this field to aid antenna design for future novel RF p ...

Institute of Physics Publishing2024

Cross-calibration and first vertical ECE measurement of electron energy distribution in the TCV tokamak

Ambrogio Fasoli, Stefano Coda, Joan Decker, Arsène Stéphane Tema Biwole

This paper describes the first vertical electron cyclotron emission measurement of non-thermal electron distributions in the Tokamak à Configuration Variable. These measurements were conducted in runaway electron scenarios and in the presence of electron c ...

2024

Spin Waves and Three Dimensionality in the High-Pressure Antiferromagnetic Phase of SrCu2 (BO3)2

Henrik Moodysson Rønnow, Frédéric Mila, Bruce Normand, Jian Rui Soh, Ellen Fogh, Gaétan Charles Antoine Giriat

Quantum magnetic materials can provide explicit realizations of paradigm models in quantum many-body physics. In this context, SrCu2(BO3)2 is a faithful realization of the Shastry-Sutherland model for ideally frustrated spin dimers, even displaying several ...

2024

Microstructured plastic scintillators for pencil beam profiling in proton-therapy accelerators

Arnaud Bertsch, Fabrizio Carbone, Alessandro Mapelli, Simone Gargiulo, Veronica Leccese, Michele Caldara, Samuele Bisi

A novel beam profiler based on microstructured scintillation resin is presented. The detector consists of a bundle of waveguides, featuring an active area of 30 x 30 mm2 with a fill factor of 50% and a pitch of 400 mu m. This configuration is obtained by c ...

Elsevier2024

Tracking of charged particles with nanosecond lifetimes at LHCb

Olivier Schneider, Aurelio Bay, Guido Haefeli, Tatsuya Nakada, Frédéric Blanc, Lesya Shchutska, Elena Graverini, Sebastian Schulte, Donal Patrick Hill, Marie Theres Christin Bachmayer, Serhii Cholak, Ettore Zaffaroni, Aravindhan Venkateswaran, Luis Miguel Garcia Martin, Vitalii Lisovskyi, Elisabeth Maria Niel, Federico Ronchetti, Radoslav Marchevski, Anni Matilda Kauniskangas, Dimitrios Kaminaris, Raphaël van Laak, Pierre Paul Louis Mayencourt, Brianna Leililani Thielen, Arnaud Merlin Gauthey, Gianluca Zunica, Abdul-Kerim Guseinov, Esteban Curras Rivera, Yifei Song, Alexandre Brea Rodriguez

A method is presented to reconstruct charged particles with lifetimes between 10ps and 10ns, which considers a combination of their decay products and the partial tracks created by the initial charged particle. Using the Ξ- baryon as a benchmark, the metho ...

2024

Radiation resistant optical components for high energy physics detectors

Serhii Cholak

New detectors for future high-energy physics experiments will operate under unprecedented radiation dose rates. This condition requires improved radiation resistance on detector equipment. The consequent development of new materials, particularly optical m ...

Elsevier2023

Reduced order modeling for parametrized generalized Newtonian fluid flows

Ricardo Reyes Sotomayor

Non-Newtonian fluids are present in most manufacturing industry processes. Computa-tional models used to describe the rheological behavior of such materials can be costly due to the non-linear behavior of the viscosity. This work presents a parametrized pr ...

2023

Study of the Bose-Einstein correlations of same-sign pions in proton-lead collisions

Olivier Schneider, Aurelio Bay, Guido Haefeli, Tatsuya Nakada, Frédéric Blanc, Lesya Shchutska, Elena Graverini, Michel De Cian, Vladimir Macko, Sebastian Schulte, Donal Patrick Hill, Maria Vieites Diaz, Marie Theres Christin Bachmayer, Lino Ferreira Lopes, Serhii Cholak, Veronica Sølund Kirsebom, Ettore Zaffaroni, Surapat Ek-In, Aravindhan Venkateswaran, Ana Bárbara Rodrigues Cavalcante, Sara Celani, Renato Quagliani, Carina Trippl, Sonia Amina Bouchiba, Alison Maria Tully, Elisabeth Maria Niel, Maarten Willibrord Uriël Van Dijk, Maria Carolina Feliciano Faria

Correlations of same-sign charged pions are analysed using proton-lead collision data collected by the LHCb experiment at a nucleon-nucleon centre-of-mass energy of 5.02TeV, corresponding to an integrated luminosity of 1.06 nb(-1). Bose-Einstein correlatio ...

Springer Nature2023