Publications related to Study of a Superconducting Magnetic Diverter for the ATHENA X-Ray Space Telescope

Related publications (15)

Cascades of Parametric Instabilities in the Tokamak Plasma Edge during Electron Cyclotron Resonance Heating

We report observations of nonlinear two-plasmon decay instabilities (TPDIs) of a high -power microwave beam, a process similar to half -harmonic generation in optics, during electron cyclotron resonance heating in a tokamak. TPDIs are found to occur regula ...

Amer Physical Soc2024

MHD modeling of shattered pellet injection in JET

Umar Sheikh

Nonlinear 3D MHD simulations of shattered-pellet injection (SPI) in JET show prototypical SPI-driven disruptions using the M3D-C1 and NIMROD extended-MHD codes. Initially, radiation-driven thermal quenches are accelerated by MHD activity as the pellet cros ...

IOP Publishing Ltd2023

Bayesian approach for validation of runaway electron simulations

Carl Mathias Paul Hoppe

Plasma-terminating disruptions in future fusion reactors may result in conversion of the initial current to a relativistic runaway electron beam. Validated predictive tools are required to optimise the scenarios and mitigation actuators to avoid the excess ...

Cambridge University Press2022

Simultaneous measurements of unstable and stable Alfven eigenmodes in JET

Ambrogio Fasoli, Mario Ludovico Podesta, Paulo Giovane Paschoali Pereira Puglia

In this paper, we report the novel experimental observation of both unstable and stable toroidicity-induced Alfven eigenmodes (TAEs) measured simultaneously in a JET tokamak plasma. The three-ion-heating scheme (D-DNBI-He-3) is employed to accelerate deute ...

IOP Publishing Ltd2022

High resolution density pedestal measurements during edge localized modes by short-pulse reflectometry in the TCV tokamak

Stefano Coda, Laurie Porte, Benoît Labit, Pedro Andres Molina Cabrera

This publication presents high spatio-temporal resolution (mm/μs) density profile measurements of the pedestal top during type I, III, and small edge localized mode (ELM) H- mode plasmas in the Tokamak à Configuration Variable (TCV). These measurements wer ...

2021

A New Concept of Sensor for Ultra-high Levels of Radiation based on Radiation Enhanced Oxidation of Copper Thin-films

Georgi Gorine

The Future Circular Collider (FCC) is the envisioned particle accelerator to be installed in the Geneva area (Switzerland). It could achieve an energy of 100 TeV by colliding proton beams (FCC-hh) travelling through a 100 km tunnel. Unprecedented radiation ...

EPFL2020

Hybrid HTS-Nb3Sn-NbTi DEMO CS coil design optimized for maximum magnetic flux generation

Rainer Wesche, Pierluigi Bruzzone, Davide Uglietti, Kamil Sedlák, Xabier Sarasola Martin, Ortensia Dicuonzo

The present work is performed within the framework of the EUROfusion DEMO project. Previously, it was demonstrated that for a maintained magnetic flux the use of HTS conductors at highest magnetic field in a layer-wound CS coil would allow the reduction of ...

ELSEVIER SCIENCE SA2019

Strain-engineering Mott-insulating La2CuO4

Henrik Moodysson Rønnow, Johan Juul Chang, Yu-Pei Tseng, Noore Elahi Shaik, Yi Tseng, Thorsten Schmitt

The transition temperature T-c of unconventional superconductivity is often tunable. For a monolayer of FeSe, for example, the sweet spot is uniquely bound to titanium-oxide substrates. By contrast for La2-xSrxCuO4 thin films, such substrates are sub-optim ...

Nature Research2019

Neutron spectroscopy measurements of 14 MeV neutrons at unprecedented energy resolution and implications for deuterium-tritium fusion plasma diagnostics

Patrick Blanchard, Basil Duval, Ambrogio Fasoli, Yves Martin, Richard Pitts, Olivier Sauter, Henri Weisen, Stefano Coda, Marco Wischmeier, Jan Horacek, Vlad Trifa, Yann Camenen, Jonathan Graves, Duccio Testa, Gil Corbaz, Sun Hee Kim, Mikhail Maslov, Javier García Hernández, David Pfefferlé, Petre Alexandru Arion, Jose Felix Vega Stavro, Lenke Horváth, Hugo Augusto Penedones Fernandes, Stéphanie Prior, Philippe Janson, Daniel Scott Alessi, Matthew Brown, Philippe Jean Buchs, Lorenzo Anton-Louis Talà, Mario Joe Lehmann, Pamela Solange Valdés Undurraga, Jonnathan Cesar Hidalgo Acosta, Wei Tang, Albano António De Abreu E Presa De Castro E Sousa, Lyne Moser, Dalziel Joseph Wilson, Justin Robert Young, Jonathan Marc Philippe Faustin, Federico Nespoli, Alexis Gérald Page, Stefano Mattei, Tao Xu, Hamish William Patten, Janir Nuno Ramos Antunes Da Cruz, Jose Vicente Sanchez Mut, Bruno Emanuel Ferreira De Sousa Correia, Daniel Molina Romero, Nicola Vianello, Antonio José Pereira de Figueiredo, Samuel Lanthaler, Liang Yao, Joao André Gomes de Sá e Sousa, Wei Zhang, Thomas Willem Jan de Geus, Luis David Figueiredo Mascarenhas Moreira Pedrosa, Riccardo Vannucci, Candice Megan T Young, Alejandro Santa Cruz Paz, Paulo Giovane Paschoali Pereira Puglia, Cristian Sommariva, Hugo Antoine Georges Arnichand, Davide Galassi, Alessandro Pau

An accurate calibration of the JET neutron diagnostics with a 14 MeV neutron generator was performed in the first half of 2017 in order to provide a reliable measurement of the fusion power during the next JET deuterium-tritium (DT) campaign. In order to m ...

IOP Publishing2018

Pressure dependence of the magnetic order in CrAs: A neutron diffraction investigation

Henrik Moodysson Rønnow, Jonathan White, Peter Babkevich

The suppression of magnetic order with pressure concomitant with the appearance of pressure-induced superconductivity was recently discovered in CrAs. Here we present a neutron diffraction study of the pressure evolution of the helimagnetic ground state to ...

2015

Features of the magnetic properties of quasi-one-dimensional beta-TeVO4 magnets at low temperatures

Helmuth Berger

The effect of a magnetic field on the magnetic susceptibility chi(T) and the temperature of the three magnetic phase transitions in single-crystal beta-TeVO4 is studied at low temperatures. The H-T phase diagram is obtained for H parallel to b and H perpen ...

Amer Inst Physics2015

Evolving team compositions by agent swapping

Dario Floreano, Laurent Keller, Pawel Lichocki

Optimizing collective behavior in multiagent systems requires algorithms to find not only appropriate individual behaviors but also a suitable composition of agents within a team. Over the last two decades, evolutionary methods have been shown to be a prom ...

Institute of Electrical and Electronics Engineers2013

Test Result of a Full-Size Nb3Sn Conductor Developed for the ITER TF Coils

Pierluigi Bruzzone, Boris Stepanov

The Japan Atomic Energy Agency (JAEA) developed ITER TF Nb3Sn conductors that fulfill ITER requirements and has commenced fabricating the conductors to be used in the ITER TF coils. As a qualification of conductor fabrication, two full-size conductor sampl ...

IEEE Institute of Electrical and Electronics Engineers2011

Calorimetric method results for current sharing temperature Measurements in ITER Conductor Samples in SULTAN

Several Toroidal Field Conductor short samples with slight layout variations have been assembled and tested in the SULTAN facility at CRPR. The measurement campaigns started in 2007 and are still ongoing. ...

2009

Analysis of Empirical Core Loss Evaluation Methods For Non-Sinusoidally Fed Medium Frequency Power Transformers

Alfred Rufer

Nowadays medium voltage conversion systems, like traction and energy distribution systems, aim to increase power density. Volume, weight and material reduction are gaining the market today. Due to the development of new high power semiconductor devices a n ...

2008