Modélisation de matériaux supraconducteurs : application à un limiteur de courant

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The SPC team has proposed a design for the Toroidal Field (TF) coil of the DEMO tokamak based on the use of react & wind (R&W) Nb3Sn superconductor. Thanks to the grading of both the superconductor and the steel in the jackets the size of the TF coil was c ...

We report measurements of the in-plane thermoelectric power (TEP) for an overdoped (OD) crystal of the single layer cuprate superconductor Tl2Ba2CuO6+x (Tl2201) at several hole concentrations (p), from 300 or 400 K to below the superconducting transition t ...

Time-domain solutions of Maxwell’s equations in homogeneous and isotropic media are paramount to studying transient or broadband phenomena. However, analytical solutions are generally unavailable for practical applications, while numerical solutions are co ...

Phonon anharmonicity plays a crucial role in determining the stability and vibrational properties of high-pressure hydrides. Furthermore, strong anharmonicity can render phonon quasiparticle picture obsolete questioning standard approaches for modeling sup ...

Numerous conductor designs for pulsed magnets based on High Temperature Superconductors (HTS), featuring stacks of tapes are currently being proposed. A major contribution to the AC losses is expected to be given by hysteresis losses. Several numerical mod ...

The magnet feeders are part of the critical systems of a fusion reactor since they represent the interface between the in-cryostat components at 4.5 K and the room-temperature cryogenic plant and power supply. The European DEMO tokamak foresees 16 toroidal ...

Superconducting electronics provide us with cryogenic digital circuits that can rival established technologies in performance and energy consumption. Today, the lack of tools for the design of large-scale integrated superconducting circuits is a major obst ...

The design point that had been chosen for EU DEMO in 2016 is reviewed here and a modification is proposed with a lower aspect ratio. Previously the same aspect ratio, A, was chosen for EU DEMO as in major tokamak experiments including ITER (A = 3.1), and, ...

In the past decades, a significant increase of the transistor density on a chip has led to exponential growth in computational power driven by Moore's law. To overcome the bottleneck of traditional von-Neumann architecture in computational efficiency, effo ...

X-rays have been observed in natural downward cloud-to-ground lightning for over 20 years and in rocket-triggered lightning for slightly less. In both cases, this energetic radiation has been detected during the stepped and dart leader phases of downward n ...

Recent advancements in fabrication techniques have enabled unprecedented clean interfaces and gate tunability in semiconductor-superconductor heterostructures. Inspired by these developments, we propose protocols to realize Thouless quantum pumping in elec ...

In the development of implantable bioelectronics, the establishment of efficient wireless RF links between implants and external nodes is crucial, providing substantial contributions to the advancement of medical diagnosis, therapies, and basic science. Im ...

The pyroresistive response of conductive polymer composites (CPCs) has attracted much interest because of its potential applications in many electronic devices requiring a significant responsiveness to changes in external physical parameters such as temper ...

We establish the sign of the linear magnetoelectric (ME) coefficient, alpha, in chromia, Cr2O3. Cr2O3 is the prototypical linear ME material, in which an electric (magnetic) field induces a linearly proportional magnetization (polarization), and a single m ...

Time reversal exploits the invariance of electromagnetic wave propagation in reciprocal and lossless media to localize radiating sources. Time-reversed measurements are back-propagated in a simulated domain and converge to the unknown source location. The ...

The superconducting magnet system of the Divertor Tokamak Test (DTT) facility, composed of 18 toroidal field (TF) coils, 6 poloidal field coils and a central solenoid, has been designed and many procurements have been launched. Some manufacturing aspects a ...

Mechanical oscillators can exhibit modes with ultra-low energy dissipation and compact form factors due to the slow velocity of acoustic waves, and are already used in applications ranging from timing to wireless filters. Over the past decade, novel ways i ...

The ITER Electron Cyclotron Resonance Heating and Current Drive (ECRH&CD) system relies on 1 MW 170 GHz Gyrotrons to provide the mm-wave power needed for plasma heating, current drive, and magneto-hydrodynamic control. The design and modeling of the contro ...

At CERN's Large Hadron Collider (LHC), proton and heavy-ion beams are accelerated to multi-TeV energies to be collided for the needs of the scientific community around the world. The total stored beam energy of tens to hundreds ofMJ creates potential threa ...

The need of full transposition of the current carrying elements (strands) in large cables is frequently retained as top design criterion for conductors operating in pulsed mode. However, when the transposition error, i.e., the inductance difference among t ...

Modélisation de matériaux supraconducteurs : application à un limiteur de courant

Chattez avec Graph Search

3D modelling of the R&W TF coil design for EU-DEMO including the winding pack and frictional effects

Thermoelectric power of overdoped Tl2201 crystals: charge density waves and T1 and T2 resistivities

The time-domain Cartesian multipole expansion of electromagnetic fields

Large impact of phonon lineshapes on the superconductivity of solid hydrogen

Validation and Application of Hysteresis Loss Model for HTS Stacks and Conductors for Fusion Applications

The magnet feeders for the European DEMO fusion reactor: Conceptual design and recent advances

Technology-Aware Logic Synthesis for Superconducting Electronics

Re-design of EU DEMO with a low aspect ratio

Towards Scalable Electronics: Synthetic 2D Materials for Large-Area 2D Circuit Integration

Direct observations of X-rays produced by upward positive lightning

Thouless pumping in Josephson junction arrays

Electromagnetic Radiation of Implantable Antennas

Pyroresistive response of percolating conductive polymer composites

On the sign of the linear magnetoelectric coefficient in Cr2O3

Spatiotemporal energy‐density distribution of time‐reversed electromagnetic fields

DTT toroidal field conductor samples test in Sultan: DC and AC characterization

Ultra-high quantum coherent and scalable superconducting circuit optomechanics, from topological lattices to quantum storage

Sensitivity Analysis of the Lumped Thermal Model of the EU 170 GHz Gyrotron Magnetron Injection Gun

Studies of crystal collimation for heavy ion operation at the LHC

Performance Comparison of Cables With Partial Transposition