Roy McAdams, Philippe Jacquet, Ian Day, Effy Rose, Andrew Ash, Jake Ashton, Hana El-Haroun, Paul Jepson, David Keeling, Damian King, Robert King, Stephen Marsden, Alistair McShee, Maria Nicassio, Dean Payne, Robert Proudfoot, Ridhima Sharma, Jamie Smith, Christopher Tame, Thomas Wilson
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A shinethrough detector and interlock for neutral beam injection operations on MAST-U
Neutral Beam Injection (NBI) is a powerful tool and is very commonly used for heating, current drive and diagnostics on magnetically confined devices for fusion power development. Not all the neutral beam power is deposited within the plasma. This shinethrough power must be dealt with at the first wall and any components irradiated by it must be protected against excessive heating. This paper describes the design, implementation and testing of a shinethrough detector and interlock for the MAST-U machine. It is based on the detection of the infra-red emission from the beam dump which can then be used to terminate the beam pulse if this exceeds a required threshold. The effects on the detected signal of loosely bound material (“dust”) on the beam dump is also discussed.
期刊介绍:
The journal accepts papers about experiments (both plasma and technology), theory, models, methods, and designs in areas relating to technology, engineering, and applied science aspects of magnetic and inertial fusion energy. Specific areas of interest include: MFE and IFE design studies for experiments and reactors; fusion nuclear technologies and materials, including blankets and shields; analysis of reactor plasmas; plasma heating, fuelling, and vacuum systems; drivers, targets, and special technologies for IFE, controls and diagnostics; fuel cycle analysis and tritium reprocessing and handling; operations and remote maintenance of reactors; safety, decommissioning, and waste management; economic and environmental analysis of components and systems.