Georgina 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…
PreprintEnrique Miralles-Dolz Alexander Pearce James Morris Edoardo Patelli
To make informed decisions during the concept selection activities of a fusion power plant it is necessary to evaluate the impact of uncertainties on the feasibility and performance of each concept. A framework for uncertainty quantification and sensitivity analysis has been developed for the PROCESS systems code to allow the direct comparison o…
PreprintA.J. Pearce S. Kahn J. Morris S.I. Muldrew
Conceptual designs for a European demonstration power plant (EU-DEMO) are based on extrapolations of physics scaling laws and current understanding of engineering limits based on available technologies. It is imperative to quantify the impact of uncertainties in physics and engineering parameters on the ability to produce an economically attract…
PreprintJ. Morris M. Coleman S. Kahn A. J. Pearce D. Short J. E. Cook S. Desai L. Humprey M. Kovari J. Maddock D. Vaccaro
As the EUROfusion EU-DEMO design programme approaches the transition between the pre-conceptual and conceptual design phase the systems code PROCESS has been improved to incorporate more detailed plasma physics, engineering and analysis modules. Unlike many systems codes PROCESS combines the physics modelling with both technology and costs analysis…
PreprintA.J. Pearce R. Kembleton M. Kovari H. Lux J. Morris M. Siccinio
As conceptual design options for a demonstration fusion power plant (DEMO) are explored it is important to understand the design space for possible non-ITER like design options. The power exhaust is a key design driver for a fusion power plant, and puts strong constraints on the size of the machine. One candidate for a alternative design is a doubl…
Preprint PublishedR. Lässer A. Antipenkov N. Bekris L.V. Boccaccini C.J. Caldwell-Nichols I. Cristescu Ch. Day M. Gasparotto M. Glugla G. Dell’Orco F. Gabriel O. Gastaldi Ch. Grisolia S. Knipe A. J. Magielsen A. Möslang D. Murdoch R. Pearce A. Perevezents
Tritium as one of the two fuel components for fusion power plays a special role in any fusion device. Due to its volatile character, radioactivity and easy incorporation as HTO it needs to be controlled with special care and due to its scarcity on earth it has to be produced in-situ in future fusion power plants. The paper discusses the present tri…
PublishedA S Kaye H Altmann R Albanese D Ciric P Coad D Brennan F Durodie T Edlington D C Edwards R Felton T T C Jones A Lioure P Lomas J Mailloux I Monakhov M Nightingale J Pamela R Pearce V Riccardo J Rapp A Rolfe E Surrey S Rosanvallon T Todd, A Walden
JET supports ITER both in development of technology and in torus operations. The latter include the study of ITER-like scenarios, operation in tritium (a trace tritium campaign has recently been completed), mitigation of ELMs and disruptions, investigation of tritium retention, real time control of plasma parameters, and control of extreme plasma s…
PublishedLBC Worth RJH Pearce J Bruce J Banks S Scales
The accuracy of process measurements of tritium with conventional ion chambers is often affected by surface tritium contamination. The measurement of tritium in the exhaust of the JET torus is particularly difficult due to surface contamination with highly tritiated hydrocarbons. JET’s first unsuccessful attempt to overcome the contamination prob…
PublishedRJH Pearce AC Bell D Brennan H Boyer J Bruce T Budd PR Butcher N Davies T Edlington R Felton J Harling T Hartrampf M Hitchin S Hotchin TTC Jones R King G Lawrence R Lobel P Morgan SR Shaw M Stamp E Surrey D Wilson L Worth K Zastrow
‘Trace Tritium Experiments’ (TTE) were successfully performed on JET in 2003. The Campaign marked the first use of tritium in JET plasmas since the Deuterium- Tritium Experiment (DTE1) Campaign in 1997, and was the first use of tritium in experiments under the EFDA organisation with the UKAEA as JET Operator. The safety and regulatory preparati…
Published