A5038754498- Magnetic confinement fusion research
- Fusion materials and technologies
- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Ionosphere and magnetosphere dynamics
- Advanced Data Storage Technologies
- Laser-Plasma Interactions and Diagnostics
- Nuclear reactor physics and engineering
- Parallel Computing and Optimization Techniques
- Particle Detector Development and Performance
- Nuclear Physics and Applications
- Plasma Diagnostics and Applications
- Atomic and Subatomic Physics Research
- Radiation Effects in Electronics
- Anomaly Detection Techniques and Applications
- Distributed and Parallel Computing Systems
- Magnetic Field Sensors Techniques
- High-Energy Particle Collisions Research
- Underwater Vehicles and Communication Systems
- Fault Detection and Control Systems
- Nuclear Materials and Properties
- Solar and Space Plasma Dynamics
- Space Technology and Applications
- Real-time simulation and control systems
- Quantum, superfluid, helium dynamics
Culham Science Centre
2012-2024
United Kingdom Atomic Energy Authority
2017-2024
Culham Centre for Fusion Energy
2017-2023
Max Planck Institute for Plasma Physics
2023
Royal Military Academy
2020
University of Lisbon
2010-2015
Instituto Superior Técnico
2006-2014
Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento
2005-2014
Instituto Superior de Tecnologias Avançadas
2009
Humboldt-Universität zu Berlin
2008
Development of real-time applications is usually associated with nonportable code targeted at specific operating systems. The boundary between hardware drivers, system services, and user commonly not well defined, making the development in target host significantly difficult. Multithreaded Application Real-Time executor (MARTe) a framework built over multiplatform library that allows execution same different provides high-level interfaces hardware, external configuration programs,...
The JET exploitation plan foresees D–T operations in 2020 (DTE2). With respect to the first campaign 1997 (DTE1), when was equipped with a carbon wall, experiments will be conducted presence of beryllium–tungsten ITER-like wall and benefit from an extended improved set diagnostics higher additional heating power (32 MW neutral beam injection + 8 ion cyclotron resonance heating). There are several challenges presented by new wall: general deterioration pedestal confinement; risk heavy...
This paper summarizes the physical principles behind novel three-ion scenarios using radio frequency waves in ion cyclotron range of frequencies (ICRF). We discuss how to transform mode conversion electron heating into a new flexible ICRF technique for and fast-ion generation multi-ion species plasmas. The theoretical section provides practical recipes selecting plasma composition realize scenarios, including two equivalent possibilities choice resonant absorbers that have been identified....
Abstract In magnetic fusion devices, error field (EF) sources, spurious perturbations, need to be identified and corrected for safe stable (disruption-free) tokamak operation. Within Work Package Tokamak Exploitation RT04, a series of studies have been carried out test the portability novel non-disruptive method, designed tested in DIII-D (Paz-Soldan et al 2022 Nucl. Fusion 62 126007), perform an assessment model-based EF control strategies towards their applicability ITER. this paper,...
Burning plasmas with 500 MW of fusion power on ITER will rely partially detached divertor operation to keep target heat loads at manageable levels. Such regimes be maintained by a real-time control system using the seeding radiative impurities like nitrogen (N), neon or argon as actuator and one more diagnostic signals sensors. Recently, detachment has been successfully achieved in Type I ELMy H-mode JET-ITER-like wall discharges saturation current (Isat) measurements from Langmuir probes...
Abstract JET returned to deuterium-tritium operations in 2023 (DTE3 campaign), approximately two years after DTE2. DTE3 was designed as an extension of JET's 2022-2023 deuterium campaigns, which focused on developing scenarios for ITER and DEMO, integrating in-depth physics understanding control schemes. These were evaluated with mixed D-T fuel, using the only remaining tritium-capable tokamak until its closure 2023. A core-edge-SOL integrated H-mode scenario developed tested D-T, showing...
The new JET ITER-like wall (made of beryllium and tungsten) is more fragile than the former carbon fiber composite requires active protection to prevent excessive heat loads on plasma facing components (PFC). Analog CCD cameras operating in near infrared wavelength are used measure surface temperature PFCs. Region interest (ROI) analysis performed real time maximum measured each ROI sent vessel thermal map. system started October 2011 has already successfully led a safe landing when hot...
Digital twin techniques enhance traditional engineering analysis workflows of existing systems when a realistic evaluation component under complex operating conditions is required. During preparation, commissioning and phases, components can be virtually tested by using validated numerical models, operational expertise, experimental databases. Three complementary applications have been developed this approach. The models used for the divertor tiles are based on continuum mechanics...
The Multithreaded Application Real-Time executor (MARTe) is a data driven framework environment for the development and deployment of real-time control algorithms. main ideas which led to present version were standardize systems, while providing set strictly bounded standard interfaces outside world also accommodating collection facilities promote speed ease development, commissioning such systems. At core every MARTe based application, independent inter-communicating software blocks, named...
The achievement of a steady ELMy H-mode phase with high ion temperature, but without gradual rise in plasma radiation, has been crucial point to establish performance scenarios JET ITER-like-wall plasmas. Indeed, radiation events, due the release Z impurities, such as Nickel and Copper, W sputtered from divertor, can strongly reduce power crossing separatrix slow ELMs dynamics, thus inducing H L transition. In particular, baseline plasmas, because outward neoclassical transport [A.R. Field...
In ITER and next step fusion reactors, the chosen materials for first wall are Beryllium Tungsten because of their good thermodynamic mechanical properties, low level erosion, neutron activation, Tritium retention. However, radiation events due to release such high Z materials, can be responsible plasma cooling, which affect ELM dynamics [A.R. Field et al. 2021 Plasma Phys. Control. Fusion 63 095,013], trigger MHD instabilities [G. Pucella Nucl. 61 046,020], inhibit achievement thermonuclear...
Post-disruption runaway electron (RE) beams in tokamaks with large current can cause deep melting of the vessel and are one major concerns for ITER operations. Consequently, a considerable effort is provided by scientific community order to test RE mitigation strategies. We present an overview results obtained at FTU TCV controlling position improve safety repeatability studies such as massive gas (MGI) shattered pellet injections (SPI). show that proposed beam controller (REB-C) implemented...
The ITER-like wall (ILW) at JET provides a unique opportunity to study the combination of material (beryllium and tungsten) that will be used for plasma facing components (PFCs) in ITER. Both limiters (Be) divertor (CFC W coated bulk W) have been designed maximize their power handling capability. During last experimental campaign (October 2010–July 2011) this capability has assessed even challenged case Be wall. limiters' (19 MW m−2 s−1/2), predicted with simple model, proven robust by...
Recently, a new recipe for developing and deploying real-time systems has become increasingly adopted in the JET tokamak. Powered by advent of x86 multi-core technology reliability JET's well established Real-Time Data Network (RTDN) to handle all I/O, an official Linux vanilla kernel been demonstrated be able provide performance user-space applications that are required meet stringent timing constraints. In particular, careful rearrangement Interrupt ReQuests' (IRQs) affinities together...
The installation of international thermonuclear experimental reactor-relevant materials for the plasma facing components (PFCs) in Joint European Torus (JET) is expected to have a strong impact on operation and protection experiment. In particular, use all-beryllium tiles, which deteriorate at substantially lower temperature than formerly installed carbon fiber composite imposes strict thermal restrictions PFCs during operation. Prompt precise responses are therefore required whenever...