A5056803749- Magnetic confinement fusion research
- Fusion materials and technologies
- Nuclear Materials and Properties
- Metallurgical Processes and Thermodynamics
- Nuclear reactor physics and engineering
- Advanced Materials Characterization Techniques
- Glass properties and applications
- Engineering Applied Research
- Concrete Corrosion and Durability
- Mining and Gasification Technologies
- Hydrogen embrittlement and corrosion behaviors in metals
- Graphite, nuclear technology, radiation studies
Culham Science Centre
2019
Culham Centre for Fusion Energy
2018-2019
University of Oxford
2017-2019
RED Consulting (Norway)
1974
Post mortem analysis shows that mid and high atomic number metallic impurities are present in deposits on JET plasma facing components with the highest amount of Ni W, therefore largest sink, being found at top inner divertor. Sources defined as "continuous" or "specific", sources arise from ongoing erosion surfaces "specific" linked specific events which decrease over time until they no longer act a source. This contribution evaluates sinks estimates sources, balance gives an indication...
Melting is one of the major risks associated with tungsten (W) plasma-facing components (PFCs) in tokamaks like JET or ITER. These are designed such that leading edges and hence excessive plasma heat loads deposited at near normal incidence avoided. Due to high stored energies ITER discharges, shallow surface melting can occur under insufficiently mitigated disruption so-called edge localised modes—power load transients. A dedicated program was carried out study physics consequences W...
Beryllium oxide (BeO) and deuteroxide (BeOxDy) have been found on the melted zone of a beryllium tile extracted from upper dump plate JET-ILW (2011–2012 campaign). Results obtained using Raman microscopy, which is sensitive to both chemical bond crystal structure, with micrometric lateral resolution. BeO wurtzite structure. BeOxDy as three different types are not β-phase but behaves molecular species like Be(OD)2, O(Be-D)2 DBeOD. The presence small amount trapped D2O also suspected. Our...
Preliminary results investigating the microstructure, bonding and effect of beryllium oxide formation on retention in JET ITER-like wall tiles, are presented. The tiles have been investigated by several techniques: Scanning Electron Microscopy (SEM) equipped with Energy Dispersive X-ray (EDX), Transmission microscopy (TEM) EDX Loss Spectroscopy (EELS), Raman Thermal Desorption (TDS). This paper focuses from melted materials dump plate JET. From our literature, it is concluded, can form...
Abstract The scope of metallurgical engineering applied research and development cladding encapsulation materials has been extended during recent years beyond those used in core non-core structural nuclear applications power reactors. Materials for the radioisotopes medical commercial uses must also be carefully selected their suitability exposure initially up to two reactor followed by four or five service. susceptibility corrosion all these is a most important consideration. Conventional...