A5077371818- Magnetic confinement fusion research
- Fusion materials and technologies
- Superconducting Materials and Applications
- Laser-Plasma Interactions and Diagnostics
- Nuclear reactor physics and engineering
- Laser-induced spectroscopy and plasma
- Ionosphere and magnetosphere dynamics
- Nuclear Physics and Applications
- Particle accelerators and beam dynamics
Sapienza University of Rome
2021-2024
Engineering (Italy)
2024
Abstract JET experiments using the fuel mixture envisaged for fusion power plants, deuterium and tritium (D–T), provide a unique opportunity to validate existing D–T prediction capabilities in support of future device design operation preparation. The 2021 experimental campaign has achieved powers sustained over 5 s ITER-relevant conditions i.e. with baseline or hybrid scenario full metallic wall. In preparation campaign, extensive predictive modelling was carried out several assumptions...
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...
Abstract For more than a decade, an unprecedented predict-first activity has been carried in order to predict the fusion power and provide guidance second Deuterium–Tritium (D–T) campaign performed at JET 2021 (DTE2). Such provided framework for broad model validation development towards D–T operation. It is shown that it necessary go beyond projections using scaling laws obtain detailed physics based predictions. Furthermore, mixing different modelling complexity promoting extended...
Abstract We present the JETTO-QuaLiKiz-SANCO fully predictive modelling of two JET-ILW high-performance baseline plasmas, a Ne seeded shot and an equivalent unseeded one. The motivation work lies in experimental observation slightly higher confinement performance with respect to one, despite sharing same main plasma parameters heating powers. Moreover, neon shows lower pedestal electron density core ion temperature Integrated is performed order understand if cause improved has be ascribed...
Abstract The fusion performance of ELMy H-mode 50–50 deuterium–tritium (DT) plasmas with DT NBI injection and q 95 ≈ 3 β N 1.8 (also referred to as medium- baseline scenario in the rest this paper) are predicted JINTRAC suite codes QuaLiKiZ transport model. predictions based on analysis from first campaign JET 1997 (DTE1) pure deuterium developed at preparation for experimental 2021 (DTE2), after installation a Be/W ITER-like wall 2011. sensitivity plasma parameters such current, toroidal...
Abstract The JET Deuterium-Tritium-Experiment Campaign 2 (DTE2) has demonstrated the highest-ever fusion energy production. To forecast transport dynamics within these discharges, TGLF and NEO models TGYRO code were employed. A critical development in this study is new quasilinear model, TGLF-SAT2, specifically designed to resolve discrepancies identified deuterium discharges. This model accurately describes saturated three-dimensional (3D) fluctuation spectrum, aligning closely with a...
Abstract Understanding the transport mechanisms that regulate H-mode pedestal structure is crucial for developing regimes with edge dynamics are compatible thermal and particle load constraints of plasma facing components. In this regard, at JET tokamak, featuring small-ELM (BSE) have been developed, expelling less energy per ELM compared to standard type-I ELM. The these new remains stable against peeling-ballooning modes, leaving its unexplained. study, three baseline discharges—a...
Abstract The strong toroidal magnetic field required for plasma confinement in tokamaks is generated by a set of D-shaped coils lying equidistant on meridian planes toroidally located around the central axis device. A major technological challenge tied to this configuration represented large Lorentz force acting and arising from interaction coils’ currents with coil system itself. As given cross product current field, various kinds geometry modification have been proposed alleviate problem,...