A 2.5 MeV neutron spectrometry system with a tangential line of sight for the D-D phase at the JET tokamak

N. P. Hawkes, P. van Belle, P. Dixon, M. A. Hone, O. N. Jarvis, M. J. Loughlin, M. T. Swinhoe

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The neutron spectrometry system described in this report is in routine use at the Joint European Torus (JET). Designed for the D-D phase of operations it consists of a complementary set of compact neutron spectrometers housed in a shielding block in the torus hall. The collimation system, which has an adjustable aperture, defines a horizontal line of sight with a significant directional component tangential to the plasma axis. The shielding, the spectrometers, and the auxiliary sensors and systems are described. The operating limits of the spectrometers, and the methods of data analysis, are discussed. Examples of analysed data are given.

Original languageEnglish
Pages (from-to)533-546
Number of pages14
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume335
Issue number3
DOIs
StatePublished - Nov 1 1993
Externally publishedYes

Funding

* This work was funded by JET under contracts JBl/9001, JE2/0685 and JE6/0163. Additional support was provided by the UK Department of Trade and Industry under a Task Agreement. The spectrometry system was designed, con-structed, installed and commissioned by AEA Technology . ' Present address: JET Joint Undertaking, Abingdon, Oxon. OX14 3EA, UK.

FundersFunder number
JETJE6/0163, JBl/9001, JE2/0685
Department of Trade and Industry

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