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UKAEA-CCFE-PR(25)2732025
ERMES 20.0 is an open-source software which solves the Maxwell’s equations in frequency domain with the Finite Element Method (FEM). The new ERMES 20.0 is a significant upgrade from the previous ERMES 7.0. It introduces new features, modules, and FEM formulations to address the challenging problems commonly encountered in the design and analysis …
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UKAEA-STEP-PR(24)232024
Electron Bernstein waves (EBWs) are theorised to efficiently drive current in spherical tokamak power plants, e.g. Spherical Tokamak for Energy Production (STEP). At high temperatures (Te ≳4keV), relativistic effects can significantly impact wave propagation. This work presents relativistic calculations of EBW wave propagation, damping, and curre…
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UKAEA-CCFE-PR(26)4582024
engineering components. Within the nuclear fusion energy industry, a remote laser welding technique will be extensively employed for the assembly and maintenance of in-vessel components, predominantly constructed from Eurofer97 steel. The welding process introduces significant re…
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UKAEA-CCFE-PR(26)4572024
The Yacora solver has been used to generate two novel molecular rate databases for use in SOLPS-ITER. The reduced Yacora database utilises updated cross-sectional data, whilst the full Yacora database includes the same updated cross-sectional data in addition to the inclusion of vibrational reactions such as off-diagonal vibrational electron-impact…
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UKAEA-STEP-PR(26)052024
STEP is a spherical tokamak prototype power plant that is being designed to demonstrate net electric power. The design phase involves the exploitation of plasma models to optimise fusion performance subject to satisfying various physics and engineering constraints. A modelling workflow, including integrated core plasma modelling, MHD stability a…
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UKAEA-RACE-PR(26)112024
We consider planning problems where a robot must gather reward by completing tasks at each of a large set of locations while constrained by a time bound. Our focus is problems where the difficulty of each task, and thus its duration, can be predicted, but is not fully known in advance. We model difficulty-aware problems as a Markov decision proc…
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UKAEA-RACE-CP(26)032024
The primary objective of this work is to research, design, and draft an open standard for nuclear robotics, aiming to standardise the design, development, integration, interoperability, and overall through life capability management of technologies, devices, and platforms for robotic systems used in nuclear fusion and decommissioning operations.…
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UKAEA-CCFE-CP(26)452024
A real-time plasma magnetic equilibrium controller has been developed to aid in the precise control of advanced configurations such as double-null, super-X, X-point target and X-divertor for the first time on the MAST Upgrade (MAST-U) tokamak. Successful real-time magnetic equilibrium control of different plasma shape control variables during th…
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UKAEA-CCFE-PR(26)4102024
Pure tungsten is one of the promising candidate materials for plasma facing components (PFC) of future fusion reactors due to several favourable properties including its high melting point, high thermal conductivity, high strength, high sputtering resistivity and low coefficient of thermal expansion. Increasing geometric complexity and productivity…
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UKAEA-CCFE-PR(25)3722024
The crystal plasticity-based finite element method is widely used as it allows complex microstruc8 tures to be simulated and for direct comparison with experiments. In this paper, we introduce and demonstrate a new crystal plasticity code (OXFORD-UMAT for Abaqus® 9 ), which we have 10 made freely available online to encourage other …
Showing 21 - 30 of 353 UKAEA Paper Results