Eann A. Patterson Sally Purdie Richard J. Taylor Chris Waldon
The development of a commercial fusion power plant presents a unique set of challenges associated with the complexity of the systems, the integration of novel technologies, the likely diversity and distribution of the organisations involved and the scale of resources required. A framework for creating a digital environment that integrates researc…
Preprint PublishedM.R. Gilbert T. Eade C. Bachmann U. Fischer N.P. Taylor
Waste-production predictions for the future demonstration fusion power plant (DEMO) are necessary to produce an accurate picture of the likely environmental and economic costs of radioactive waste disposal at end-of-life (EOL). Even during the conceptual stage of DEMO design it is important to perform waste assessment so as to avoid potential surpr…
Preprint PublishedM.R. Gilbert T. Eade C. Bachmann U. Fischer N.P. Taylor
Inventory calculations have a key role to play in designing future fusion power plants because, for a given irradiation field and material, they can predict the time evolution in chemical composition, activation, decay heat, gamma-dose, gas production, and even damage (dpa) dose. For conceptual designs of the European DEMO fusion reactor such calcu…
Preprint PublishedV.F. Shevchenko Y.F. Baranov T. Bigelow J.B. Caughman S. Diem C. Dukes P. Finburg J. Hawes C. Gurl J.Griffiths J. Mailloux M. Peng A.N. Saveliev Y. TakaHe H. Tanaka G. Taylor
Start-up technique reported here relies on a double mode conversion (MC) for electron Bernstein wave (EBW) excitation. It consists of MC of the ordinary (0) mode, entering the plasma from the low field side of the tokamak, into the extraordinary (X) mode at a mirror-polarizer located at the high field side. The X mode propagates back to the plasma,…
Preprint PublishedJ. B. Taylor S. L. Newton
These notes are based on lectures given by one of us (J.B.T.) at the University of Texas in Austin in 1991. Part I concerns some basic features of plasma confinement by magnetic fields as an introduction to an account of plasma relaxation in Part II. Part III discusses confinement by magnetic mirrors, especially minimum- B systems It also includes …
Preprint PublishedD. Taylor S. Lilley A. Turner A. Davis
A significant functional upgrade is planned for the Mega Ampere Spherical Tokamak (MAST) device, located at Culham in the UK, including the implementation of a notably greater neutral beam injection power. This upgrade will cause the emission of a substantially increased intensity of neutron radiation for a substantially increased amount of time up…
PublishedN. Taylor P. Cortes
One of the strong motivations for pursuing the development of fusion energy is its potentially low environmental impact and very good safety performance. But this safety and environmental potential can only be fully realized by careful design choices. For DEMO and other fusion facilities that will require nuclear licensing, S&E objectives and crite…
PublishedS. Zheng R. Pampin S. Lilley B. C. Na M. J. Loughlin N. P. Taylor V. Barabash
The scope, methodology, and preliminary results are presented of a series of neutron transport and activation analyses aimed at updating the ITER radioactive inventory assessment and assisting the waste management planning. Calculations are performed using stateof-the-art three-dimensional models, codes, and data libraries and thereby overcoming ea…
PublishedJakub Urban Joan Decker Yves Peysson Josef Preinhaelter Vladimir Shevchenko Gary Taylor Linda Vahala George Vahala
The electron Bernstein wave (EBW) is typically the only wave in the electron cyclotron (EC) range that can be applied in spherical tokamaks for heating and current drive (H&CD). Spherical tokamaks (STs), which feature relatively high neutron flux and good economy, operate generally in high-ß regimes, in which the usual EC O- and X- modes are cut-o…
PublishedA.Kirk E.Nardon R.Akers M.Bécouleta G.Detemmerman B.Dudsonb B.Hnatc Y.Q.Liu R.Martin P.Tamain D.Taylor The Mast Team
Experiments have been performed on MAST using both external (n=1,2) and internal (n=3) resonant magnetic perturbation coils. ELM suppression has not been achieved even though vacuum modelling shows that either set of coils can produce a region for which the Chirikov parameter is greater than 1 wider than that required to produce ELM suppression in …
Published