T. R. Barrett M. Bamford B. Chuilon T. Deighan T. Grant D. Horsley D. Johnstone M. Kovari M. Tindall
The CHIMERA fusion technology test facility is currently under construction at the UK Atomic Energy Authority site in South Yorkshire, UK. With the completion of the engineering design, including the design of a component mock-up to be used in full system commissioning, this paper presents in detail the features and capabilities of the CHIMERA faci…
Preprint PublishedK. Amjad W.J.R. Christian K. Dvurecenska D. Mollenhauer C.P. Przybyla E. A. Patterson
Wide-spread availability of low-cost digital sensors has made the acquisition of full-field experimental measurements less challenging, with modern measurement systems capable of obtaining three dimensional (3D) data fields. This presents difficulties when comparing computational and co…
Preprint PublishedJ. Hughes T. Toyama M. Gorley E. Jimenez-Melero
We have monitored the full-stage precipitate evolution in Cu-0.55Cr-0.07Zr alloy during aging at 480 C using positron annihilation spectroscopy, transmission electron microscopy and atom probe tomography. Cr-rich precipitates form during the early stages of aging, and after 5.5 min the distribution is characterised by a number density of 8102…
Preprint PublishedB. Poole A. Marsh D. Lunt C. Hardie M. Gorley C. Hamelin A. Harte
Scanning electron microscopy-based is now an established technique, providing full-field strain and displacement measurement at the microscale. Techniques for generating speckle patterns for sub-micron strain mapping are highly substrate dependent but typically rely on applying aggressive conditions which may alter the microstructure of interest…
PreprintB. Poole A. Marsh D. Lunt C. Hardie M. Gorley C. Hamelin A. Harte
The high source stability and brightness of field emission gun equipped scanning electron microscopes (SEM) makes them ideal for high-resolution digital image correlation (HRDIC). However, their high initial capital cost can be prohibitive for research organisations and groups. Conventional thermionic SEMs using either a tungsten hairpin or LaB
PreprintM. Tindall T. Deighan S. Rosini N. Bowden S. Biggs-Fox T. Barrett
Critical to the successful design of fusion reactor components is the development of coupled simulation models, capable of conducting efficient whole system design optimisation and virtual component qualification, under conditions which cannot be readily tested. Additionally, successful lifetime monitoring and predictive maintenance of fusion compo…
Preprint PublishedThomas Stainer
An important area of research required for fusion reactor design is the study of materials under high energy neutron irradiation. Deuterium-Tritium (D-T) reactions release 14.1 MeV neutrons and material studies of such high energy neutrons focusing on transmutation and activation are paramount for fusion tokamak devices such as ITER and DEMO. Th…
Preprint PublishedL W Packer M Angeloni M R Gilbert M Pillon J-C Sublet
Cooling water in the primary circuit in both fission and fusion nuclear reactors is unavoidably exposed to neutrons leading to the generation of problematic short-lived isotopes, most importantly, 16N (T1/2=7.3s) via the 16O(n,p)16N reaction. This presents a significant itinerant radiation source to consi…
Preprint PublishedA. Valentine T. Berry S. Bradnam H. Chohan T. Eade C. Grove J. Hagues K. Hearn J. Hodson K. Lennon J. Naish J. Neilson C. Nobs L. Packer A. Turner T. Turner L. Woodall R. Worrall
Global research programmes seeking to achieve a commercially viable model of a fusion power plant are being accelerated at an unprecedented rate. One critical element to the design and licensing is an accurate understanding of the radiation environment throughout the plant lifetime and subsequent decommissioning phase. The radiation field which res…
PreprintGeorgina Graham Alexander Pearce James Morris Richard Kembleton
The EU DEMO power plant is the final stage of the EUROfusion Fusion Technology Programme’s route to commercially viable electricity supply [1]. The selection of apposite technologies for DEMO power plant sub-systems is essential. The breeding blanket, responsible for absorption of nuclear energy, tritium fuel production and a substantial proporti…
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