Conference Papers

Showing 71 - 80 of 82 Conference Paper Results
2019
UKAEA-CCFE-CP(19)11
22nd Topical Conference on High Temperature Plasma Diagnostics (HTPD), San Diego, USA, 16-19 April 2018

Ion cyclotron emission (ICE) is a commonly observed feature of magnetized toroidal plasmas in the presence of fast ions. It is generally agreed that this emission is caused by a strongly inverted (in the velocity space) population of confined fast ions originating from either neutral beam injection (NBI), fusion reactions, or acceleration by waves …

Preprint
2019
UKAEA-CCFE-CP(19)10
2nd International Conference on Nuclear Power Plants: Structures, Risk and Decommissioning (NUPP), Croydon, UK, 11-12 June 2018

There is currently a European collaboration that is working towards developing a Demonstration Fusion Reactor (European DEMO). This project is currently defining the high level plant architecture of a DEMO reactor, whilst developing conceptual design solutions for technically challenging systems. One such area of development is the design of Pla…

Preprint
2019
UKAEA-CCFE-CP(19)09
IEEE International Symposium on Circuits and Systems (ISCAS), Florence, Italy, 27-30 May 2018

The problem of parameter fitting nonlinear oscillator models to noisy time series is addressed using a combination of Ensemble Kalman Filter and Optimisation techniques. Preliminary results for acceptable sampling rates and noise levels are presented. Application to the understanding and control of tokamak nuclear reactor operation is discussed.

Preprint Purchase
2019
UKAEA-CCFE-CP(19)08
22nd Topical Conference on High Temperature Plasma Diagnostics (HTPD), San Diego, USA, 16-19 April 2018

Charge-exchange spectroscopy on JET has become particularly challenging with the introduction of the ITER-like wall. The impurity spectra are weaker and contaminated by many tungsten lines. We have therefore upgraded the instrumentation to allow the simultaneous measurement of impurity and fuel-ion charge exchange by splitting the light between two…

Preprint
2019
UKAEA-CCFE-CP(19)07
ICVRAM - ISUMA UNCERTAINTIES, Florianoplis, Brazil, 8-11 April 2018

Nuclear fusion, the process by which the Sun generates energy, is proposed as one solution to secure the future of global energy supply. If successful it will provide an unlimited source of clean energy. Probably the most promising approach to harnessing fusion for energy production is that of the Tokamak device, a magnetic confinement device of to…

Published
2019
UKAEA-CCFE-CP(19)06
30th Symposium on Fusion Technology (SOFT), Giardini Naxos, Messina, Sicily, 16-21 September 2018

The next D-T campaign will push JET ITER-like Wall (IWL) to high divertor power and energy levels. During the 2016 campaign, the Strike Point (SP) sweeping permitted relevant H-mode scenarios without exceeding the temperature limits imposed by JET Operation Instructions (JOIs). In the subsequent shutdown, six outer divertor tungsten-coated 2D carbo…

Preprint Purchase
The published version of this paper is currently under embargo and will be available on 15/03/2021
2019
UKAEA-CCFE-CP(19)05
Waste Management Symposia (WMS), Phoenix, USA, 18-22 March 2018

This paper presents the methodology and results of developing and implementing a system-of-systems architecture for controlling many robotic systems within the context of industrial facilities, where the life of the facility will be far longer than the life of the robotics, due to software updates and accelerated digital obsolescence. The use cases…

Preprint
2019
UKAEA-CCFE-CP(19)04
27th IAEA Fusion Energy Conference, Ahmedabad, India, 22-27 October 2018

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 Published
2019
UKAEA-CCFE-CP(19)03
UK-RAS Network Conference on Robotics and Autonomous Systems: robots working for and among us, Bristol, UK, 12 December 2018

The European Spallation Source (ESS) is a multi-disciplinary research facility which will be the world’s most powerful pulsed neutron source. A critical component of ESS will be a facility for handling radioactive waste and preparing it for safe disposal. Safe disposal of ESS waste requires the dexterous tele-manipulation of large, highly activat…

Preprint Published
2019
UKAEA-CCFE-CP(19)02
Waste Management Symposia (WMS), Phoenix, USA, 18-22 March 2018

Nuclear decommissioning environments are challenging and hazardous, typically involving high temperatures, pressures and extreme radiation. Robotic devices are commonly used to complete tasks within challenging environments, which would otherwise pose a risk to human health, however remotely operating robots without full three-dimensional vision is…

Preprint