Conference Papers

Showing 1 - 4 of 4 Conference Paper Results
2021
UKAEA-CCFE-CP(21)09
"Technological exploitation of the JET nuclear environment: progress in neutron field characterisation and ITER materials irradiation"
28th IAEA Fusion Energy Conference, Nice, France, 10-15th May 2021

L. W. Packer P. Batistoni S. C. Bradnam S. Conroy M. Fabbri Z. Ghani M. R. Gilbert S. Jednorog E. Laszynska D. Leichtle I. Lengar M. Majerle J. W. Mietelski C. R.Nobs O. Ogorodnikova M. Pillon M. I. Savva I. E. Stamatelatos T. Vasilopoulou R. Villari A. Wojcik-Gargula R. Worrall JET Contributors

Understanding the effects of neutron irradiation of materials is one of the outstanding issues in the development of fusion technologies. The impact of this work derives from the opportunity, for the first time in a tokamak operating with a D-T plasma, to deliver experimental results which directly link to the nuclear characteristics of real sam…

Preprint Purchase
The published version of this paper is currently under embargo and will be available on 14/10/2022
2020
UKAEA-CCFE-CP(20)124
"Computational evaluation of N-16 and N-17 measurements for a 14 MeV neutron irradiation of an ITER first wall component with water circuit"
14th International Symposium on Fusion Nuclear Technology (ISFNT-14) Budapest,Hungary, 22-27 September 2019

Chantal Nobs Jonathon Naish Lee Packer Mario Pillon Maurizio Angelone Stefano Loreti Paolo Del Prete Jesus Izquierdo Raul Pampin Luca Zanibellato

During ITER operations the water coolant flowing through components such as the first wall, blanket modules, divertor cassettes and vacuum vessel will become activated by high energy neutrons. Two key neutron-induced reactions will occur with oxygen in the water producing the radioactive isotopes, N-16 and N-17, which have relatively short half-liv…

Preprint Purchase
The published version of this paper is currently under embargo and will be available on 02/05/2022
2020
UKAEA-CCFE-CP(20)108
"Neutronics Pre-analysis and the Status of Neutron Spectrum Unfolding for the Development of a Novel Neutron Detector for Fusion"
30th Symposium on Fusion Technology (SOFT), Giardini Naxos, Messina, Sicily, 16-21 September 2018

C.R. Nobs L. W. Packer P. Batistoni B. Colling Z. Ghani M. Gilbert S. Loreti K. Mergia S. Mesoloras I. Michelakaki M. Pillon M. I. Savva I. E. Stamatelatos K. Triantou T. Vasilopoulou

In future fusion power plants, such as DEMO, D-T neutron emission is predicted to exceed 1×1021 neutrons/second. Accurately monitoring neutron energies and intensities will be the primary method for estimating fusion power, and calculating key parameters, including the tritium breeding ratio and nuclear heating.  The Novel Neutron Det…

Preprint Published
2020
UKAEA-CCFE-CP(20)106
"Backwards extrapolation activation diagnostics and their dynamic range for pulsed neutron source measurements"
14th International Symposium on Fusion Nuclear Technology (ISFNT-14) Budapest,Hungary, 22-27 September 2019

L. W. Packer S. Allan S. B. Bradnam M. R. Gilbert T. Stainer

The measurement of the fusion neutron yield provides a direct relationship with fusion power and is hence an important measure of experimental performance. In pulsed neutron emission scenarios, such as those experienced in dense plasma focus devices, inertial confinement fusion and even in short-pulse tokamak experiments, considerations of the dyna…

Preprint Published