The new JET 2.5-MeV neutron time-of-flight spectrometer
- 1 October 1992
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 63 (10) , 4586-4588
- https://doi.org/10.1063/1.1143678
Abstract
A major upgrade of the JET 2.5‐MeV neutron time‐of‐flight spectrometer has been completed. The improvement has permitted ion temperature measurements for Maxwellian deuterium plasmas with Ti≳4 keV to be obtained in 0.5‐s intervals. By combining observations of neutron and x‐ray energy spectra with studies of γ‐ray emission from reactions between fast deuterons and impurities, the effects of ICRF heating on the deuterium energy distribution have been studied. The time evolution of neutron energy spectra from deuterium‐beam heated deuterium plasmas is illustrated and a method for evaluating the ion temperature from such sequences is indicated. Furthermore, the spectrometer has shown stable performance during high neutron fluxes.Keywords
This publication has 5 references indexed in Scilit:
- Deduction of central plasma parameters from line-of-sight averaged spectroscopic observationsJournal of Applied Physics, 1991
- The JET neutron time-of-flight spectrometerNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1991
- Investigations of Fast-Particle Behavior in Joint European Torus Plasmas Using Nuclear TechniquesFusion Technology, 1990
- Fusion neutron energies and spectraPlasma Physics, 1973
- Energy distribution of neutrons produced by a thermonuclear reactionNuclear Fusion, 1960