Fission-neutrons source with fast neutron-emission timing

Fission-neutrons source with fast neutron-emission timing

A neutron source with fast timing has been built to help with detector-response measurements. The source is based on the neutron emission from the spontaneous fission of 252Cf. The time is provided by registering the fission fragments in a layer of a thin scintillation film with a signal rise time o...

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Veröffentlicht in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2016-05, Vol.817 (C), p.26-29
Hauptverfasser: Rusev, G., Baramsai, B., Bond, E.M., Jandel, M.
Format: Artikel
Sprache:eng
Schlagworte:
Detectors
Fragments
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Neutron emission
Neutron source
Neutron sources
Nuclear fission
Scintillation
Silicon photomultipliers
Spontaneous fission of 252Cf
Thin films
Time measurements
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Beschreibung
Zusammenfassung:A neutron source with fast timing has been built to help with detector-response measurements. The source is based on the neutron emission from the spontaneous fission of 252Cf. The time is provided by registering the fission fragments in a layer of a thin scintillation film with a signal rise time of 1ns. The scintillation light output is measured by two silicon photomultipliers with rise time of 0.5ns. Overall time resolution of the source is 0.3ns. Design of the source and test measurements using it are described. An example application of the source for determining the neutron/gamma pulse-shape discrimination by a stilbene crystal is given.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2016.01.095