A method for time resolved neutron spectroscopy on short pulsed fusion neutron sources
作者： R Schmidt , H Herold
DOI: 10.1088/0741-3335/29/4/005
关键词: Nuclear physics 、 Pulse duration 、 Optics 、 Dense plasma focus 、 Bonner sphere 、 Neutron 、 Neutron spectroscopy 、 Neutron detection 、 Neutron stimulated emission computed tomography 、 Neutron source 、 Physics
摘要: A method is presented which yields time-resolved spectral distributions of fusion neutrons by an extension time flight spectroscopy. The signals various neutron detectors placed at optimized distances from the source are used. evaluation done a computer assisted Laplace transformation procedure. Applying this it possible to measure resolved spectra pulsed sources (pulse duration 50 ns 1 mu s). Five ten photomultiplier in distance range 5-100 m necessary. Time resolution better than 10 and energy 100-300 keV possible. An experimentally obtained spectrum shown. It was taken POSEIDON plasma focus exhibits characteristic features, such as emission double pulse different pulses.
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