P. Blanchard
A5049208858- Magnetic confinement fusion research
- Ionosphere and magnetosphere dynamics
- Fusion materials and technologies
- Particle accelerators and beam dynamics
- Laser-Plasma Interactions and Diagnostics
- Superconducting Materials and Applications
- Astronomy and Astrophysical Research
- Plasma Diagnostics and Applications
- Nuclear Physics and Applications
- Particle Accelerators and Free-Electron Lasers
- Nuclear reactor physics and engineering
- Adaptive optics and wavefront sensing
- Mechanical Behavior of Composites
- Additive Manufacturing and 3D Printing Technologies
- Epoxy Resin Curing Processes
- Photocathodes and Microchannel Plates
- Fiber-reinforced polymer composites
- Stellar, planetary, and galactic studies
- Physics of Superconductivity and Magnetism
- Manufacturing Process and Optimization
- Injection Molding Process and Properties
- Dust and Plasma Wave Phenomena
- Magnesium Alloys: Properties and Applications
- Astronomical Observations and Instrumentation
- Particle Detector Development and Performance
École Polytechnique Fédérale de Lausanne
2016-2025
Centre National de la Recherche Scientifique
2010-2024
Max Planck Institute for Plasma Physics
2021-2024
Aix-Marseille Université
2012-2024
Laboratoire d’Astrophysique de Marseille
2012-2024
Wentworth Institute of Technology
2024
University of Arizona
2024
Ford Motor Company (United States)
2005-2023
Campbell Collaboration
2020-2022
Massachusetts Institute of Technology
2022
We describe and benchmark a new quantum charge-coupled device (QCCD) trapped-ion computer based on linear trap with periodic boundary conditions, which resembles race track. The system successfully incorporates several technologies crucial to future scalability—including electrode broadcasting, multilayer rf routing, magneto-optical (MOT) loading—while maintaining, in some cases exceeding, the gate fidelities of previous QCCD systems. is initially operated 32 qubits, but upgrades will allow...
Abstract For the past several years, JET scientific programme (Pamela et al 2007 Fusion Eng. Des . 82 590) has been engaged in a multi-campaign effort, including experiments D, H and T, leading up to 2020 first with 50%/50% D–T mixtures since 1997 ever plasmas ITER mix of plasma-facing component materials. this purpose, concerted physics technology was launched view prepare campaign (DTE2). This paper addresses key elements developed by directly contributing preparation. intense preparation...
Metal–organic frameworks (MOFs) have emerged as a new class of crystalline nanomaterials with ultrahigh porosities and high internal surface areas.
Abstract The tokamak à configuration variable (TCV) continues to leverage its unique shaping capabilities, flexible heating systems and modern control system address critical issues in preparation for ITER a fusion power plant. For the 2019–20 campaign configurational flexibility has been enhanced with installation of removable divertor gas baffles, diagnostic capabilities an extensive set upgrades new dual frequency gyrotrons. baffles reduce coupling between main chamber allow detailed...
Carbon fibre composites offer considerable potential for mass reduction in automotive applications. However, raw material cost is one of the major factors that constraints its extensive use this market. Here we report a systematic study presents contributors by considering entire process chain carbon manufacturing. The sensitivity analysis revealed final Polyacrylonitrile (PAN) precursor and fibres were strongly influenced tow size. It was observed prompt decrease per kg sizes from 3k to...
Abstract Glass fiber‐polyamide 6 (PA6) composites are widely used for various automotive applications, yet the ability to exhibit multifunctional properties and cost of it remains challenging. Herein this work introduces a cost‐effective approach utilization waste glass fiber (GF), green aluminium metal organic framework (Al‐MOF), industry‐grade graphene nanoplatelets (GNPs) fabrication PA6 thermoplastic with enhanced mechanical performance fire retardancy. The results demonstrate that...
We describe and benchmark a new quantum charge-coupled device (QCCD) trapped-ion computer based on linear trap with periodic boundary conditions, which resembles race track. The system successfully incorporates several technologies crucial to future scalability, including electrode broadcasting, multi-layer RF routing, magneto-optical (MOT) loading, while maintaining, in some cases exceeding, the gate fidelities of previous QCCD systems. is initially operated 32 qubits, but upgrades will...
Metal polymer composites combining low density, high strength with highly ductile and tough metals have gained traction over the last few decades as lightweight high-performance materials for industrial applications. However, mechanical properties are limited by interfacial bonding between polymers achieved through adhesives, welding, surface treatment processes. In this paper, a novel manufacturing process additive compression molding to obtain hybrid metal enhanced is presented. Additive...
We show in experiments that a long, underdense, relativistic proton bunch propagating plasma undergoes the oblique instability, which we observe as filamentation. determine threshold value for ratio between transverse size and skin depth instability to occur. At threshold, outcome of experiment alternates filamentation self-modulation (evidenced by longitudinal modulation into microbunches). Time-resolved images density distribution reveal grows an observable level late along bunch,...
A steady-state, fully noninductive plasma current has been sustained for the first time in a tokamak using electron cyclotron drive only. In this discharge, 123 kA of have entire gyrotron pulse duration 2 s. Careful distribution across minor radius power deposited from three 0. 5-MW gyrotrons was essential reaching steady-state conditions. With central drive, up to 153 replaced transiently 100 ms. The scenario is confirmed by ability recharge Ohmic transformer. dependence efficiency on also...
The spectral broadening of characteristic γ-ray emission peaks from the reaction (12)C((3)He,pγ)(14)N was measured in D((3)He) plasmas JET tokamak with ion cyclotron resonance heating tuned to fundamental harmonic (3)He. Intensities and detailed shapes were successfully reproduced using a physics model combining kinetics reacting ions description nuclear differential cross sections for populating L1-L8 (14)N excitation levels yielding observed emission. results provide paradigm, which...
The TCV tokamak is augmenting its unique historical capabilities (strong shaping, strong electron heating) with ion heating, additional heating compatible high densities, and variable divertor geometry, in a multifaceted upgrade program designed to broaden operational range without sacrificing fundamental flexibility. rooted three-pronged approach aimed at ITER support, explorations towards DEMO, research. A 1 MW, tangential neutral beam injector (NBI) was recently installed promptly...
2019) 076038 (17pp) (mainly ETG and ITG) by 50%.This suggests that, in these plasmas, the increase turbulent transport due to outward shift of density might play an important role decrease pedestal performance.
Abstract The research program of the TCV tokamak ranges from conventional to advanced-tokamak scenarios and alternative divertor configurations, exploratory plasmas driven by theoretical insight, exploiting device’s unique shaping capabilities. Disruption avoidance real-time locked mode prevention or unlocking with electron-cyclotron resonance heating (ECRH) was thoroughly documented, using magnetic radiation triggers. Runaway generation high- Z noble-gas injection runaway dissipation...
Abstract The Tokamak à Configuration Variable (TCV) tokamak is in the midst of an upgrade to further its capability investigate conventional and alternative divertor configurations. To that end, modular removable gas baffles have been installed decrease coupling between plasma core. primarily seek suppress transit recycling neutrals closed flux surfaces. A first experimental campaign with has shown baffled remains compatible a wide range configurations including snowflake super- X divertors....
Plasma wakefield acceleration is a promising technology to reduce the size of particle accelerators. The use high energy protons drive wakefields in plasma has been demonstrated during Run 1 AWAKE programme at CERN. Protons 400 GeV drove that accelerated electrons 2 under 10 m plasma. collaboration now embarking on with main aims demonstrate stable accelerating gradients 0.5–1 GV/m, preserve emittance electron bunches and develop sources scalable 100s metres beyond. By end 2, scheme should...
Experimental results show that hosing of a long particle bunch in plasma can be induced by wakefields driven short, misaligned preceding bunch. Hosing develops the plane misalignment, self-modulation perpendicular plane, at frequencies close to electron frequency, and are reproducible. Development depends on misalignment direction, its growth extent proton charge. Results have main characteristics theoretical model, relevant other plasma-based accelerators represent first characterization...
Abstract High-resolution γ-ray measurements were carried out on the Joint European Torus (JET) in an experiment aimed at accelerating 4 He ions MeV range by coupling third harmonic radio frequency heating to injected beam. For first time, Doppler broadening of peaks from 12 C(d, pγ) 13 C and 9 Be(α, nγ) reactions was observed interpreted with dedicated Monte Carlo codes based detailed nuclear physics processes. Information confined deuteron energy distribution inferred, energies as high 6...
Within the EUROfusion MST1 work package, a series of experiments has been conducted on AUG and TCV devices to disentangle role plasma fueling shape for onset small ELM regimes. On both devices, regimes with high confinement are achieved if only two conditions fulfilled at same time. Firstly, density separatrix must be large enough (), leading pressure profile flattening separatrix, which stabilizes type-I ELMs. Secondly, magnetic configuration close double null (DN), reduction shear in...
Integrating the plasma core performance with an edge and scrape-off layer (SOL) that leads to tolerable heat particle loads on wall is a major challenge. The new European medium size tokamak task force (EU-MST) coordinates research ASDEX Upgrade (AUG), MAST TCV. This multi-machine approach within EU-MST, covering wide parameter range, instrumental progress in field, as ITER DEMO core/pedestal SOL parameters are not achievable simultaneously present day devices. A two prong adopted. On one...
With an orbital distance comparable to that of Saturn in the solar system, \bpic b is closest (semi-major axis $\simeq$\,9\,au) exoplanet has been imaged orbit a star. Thus it offers unique opportunities for detailed studies its orbital, physical, and atmospheric properties, disk-planet interactions. exception discovery observations 2003 with NaCo at Very Large Telescope (VLT), all following astrometric measurements relative have obtained southwestern part orbit, which severely limits...
Metal–organic framework (MOF) nanostructures provide unique opportunities in the fabrication of multifunctional polymer nanocomposites. However, achieving both enhanced mechanical properties and fire safety using labile metal–organic reinforced epoxy composites is usually challenging, calling for post-synthetic modification (PSM) MOFs. In this study, we have synthesized an organophosphorus functionalized zirconium-based MOF, P-UiO-66 NH2 (P-MOF). This as-synthesized modified MOF when with...