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UKAEA-CCFE-PR(26)4372025
Vanadium-based alloys such as V-4Cr-4Ti are of interest as candidates for low activation structural materials for advanced nuclear reactors. One of the major challenges of vanadium-based alloys is their thermal stability and improving their mechanical properties at higher temperature ranges (> 600 °C). This work explores re…
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UKAEA-CCFE-PR(26)4362025
The low density and high temperature at the pedestal in hybrid scenarios on JET provide a unique test of the neo-classical screening in the periphery of the plasma that has previously been observed on JET. Hybrid scenario plasmas have been further developed to aid in the study of temperature gradient screening of high-Z impurities from the core…
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UKAEA-CCFE-PR(26)4352026
This paper presents an operational-space framework for regulating contact forces on geometrically unknown surfaces by integrating online surface-normal estimation with hybrid motion–force control via task-space admittance. Cartesian motion is decomposed into normal and tangential components defined with respect to an estimated local surface frame…
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UKAEA-CCFE-PR(26)4342026
IFMIF-DONES will produce neutrons by irradiating liquid lithium with a 125 mA beam of 40 MeV deuterons. These deuterons will be accelerated by a linear accelerator, which is housed in the accelerator vault within the IFMIF-DONES main building. Neutronics modelling is crucial to determine radiation safety and component lifetimes, with accurate geo…
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UKAEA-CCFE-PR(26)4332026
The 2023 JET deuterium–tritium (D–T) experimental campaign (DTE3) achieved record fusion energy output (69 MJ), providing a unique 14.1 MeV neutron environment for irradiation studies. A range of ITER material samples were exposed in a Long-Term Irradiation Station (LTIS) within the JET nuclear environment to neutron fluxes up to 2 × 10¹³ n/…
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UKAEA-STEP-PR(26)022025
Alternative Divertor Configurations (ADCs) often make use of high total flux expansion (fR) and connection length (L∥) to improve the access to and the controllability of detachment, a regime vitally important for reactor-class tokamaks such as the Spherical Tokamak for Energy Production (STEP). However, there has been little effort in assessi…
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UKAEA-CCFE-CP(26)432025
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UKAEA-CCFE-PR(26)4322026
Pyvale is an open-source software package that aims to become an all-in-one tool for sensor simulation, sensor uncertainty quantification, sensor placement optimization, and calibration/validation. Central to this is support for image-based sensors, with a dedicated Digital Image Correlation (DIC) module designed for both standalone use and integra…
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UKAEA-CCFE-PR(26)4312026
Knowledge of the mechanical properties of materials is required for the design and analysis of engineering products, however, the characterisation of heterogeneous properties using traditional techniques is limited by spatial resolution or insufficient reliability. This paper presents a novel methodology for the characterisation of hete…
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UKAEA-CCFE-PR(26)4302026
In the paper we present validated integrated modelling of JET experiments in which fusion performance is driven by reactions between fast ions and intrinsically present metal wall impurities. A steady-state L-mode plasma with dominant proton-beryllium fusion and neutron yields of up to ≈ 6 x 1013 s-1 is developed in He and D…
Showing 1 - 10 of 2538 UKAEA Paper Results