UKAEA Papers

"Degradation of electrical resistivity of tungsten following shielded neutron irradiation"

• J. R. Echols
• L. M. Garrison
• N. Reid
• C. M. Parish
• D. Morrall
• A. Hasegawa
• A. Bhattacharya
• Y. Katoh

A major challenge for heat transfer in nuclear materials is to ensure thermal mobility after high amounts of neutron irradiation.  Tungsten is widely selected as a heat transfer material in fusion reactors.  In metals, thermal conductivity is dominated by electrons’ ability to transfer energy.  Neutron irradiation generates point defects, c…

"Comparison of Waste due to Irradiated Steels in the ESFR and DEMO"

• Jack Reid
• Greg Bailey
• Edmund Cracknell
• Mark Gilbert
• Lee Packer

For either nuclear fusion or generation IV fission reactors to be viable as a commercial energy source the decommissioning and waste disposal solutions must be considered during the design. A multi-step simulation process combining Monte Carlo Neutron Transport simulations with inventory simulations have been performed to estimate the activa…

"Plasma confinement during a period of reduced fluctuations in zeta"

• A Gibson
• H Coxell
• BA Powell
• GW Reid

"Modelling of VUV/XUV spectra from the JET Tokamak"

• K. D. Lawson
• K. M. Aggarwal
• I. H. Coffey
• F. P. Keenan
• R. H. G. Reid
• et al.

The VUV/XUV spectral region is particularly rich in lines emitted by plasmas with temperatures = 30 keV used in fusion research. Examples are presented of analyses of JET tokamak data involving C VUV/XUV radiation. In the first, the C IV divertor emission is modelled, with agreement between theory and experiment to within the measurement accuracy o…