Evaluation of polyvinyl toluene scintillators for fast neutron imaging

We evaluated polyvinyl toluene (PVT) scintillators fabricated with different emitting dopants and scintillator optical configurations for fast neutron imaging. A neutron imaging apparatus was constructed to study scintillators under MeV neutron exposure. PVT with 2% Xylyl Flrpic emitter was identifi...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2018-10, Vol.318 (1), p.543-551
Main Authors: Chuirazzi, William C., Oksuz, Ibrahim, Kandlakunta, Praneeth, Massey, Thomas N., Brune, Carl R., Cherepy, Nerine J., Paul Martinez, H., Cao, Lei
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Emitters
fast neutron
Fast neutrons
Hadrons
Heavy Ions
Image quality
Inorganic Chemistry
light yield
MATERIALS SCIENCE
neutron imaging
Nuclear Chemistry
Nuclear energy
Nuclear Physics
organic scintillator
Physical Chemistry
PVT
RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
Scintillation counters
spatial resolution
Toluene
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Summary:We evaluated polyvinyl toluene (PVT) scintillators fabricated with different emitting dopants and scintillator optical configurations for fast neutron imaging. A neutron imaging apparatus was constructed to study scintillators under MeV neutron exposure. PVT with 2% Xylyl Flrpic emitter was identified as the brightest. The addition of a black backing to the scintillator, compared with a specular reflector film backing, improved the resolution of the neutron image obtained with the PVT scintillator by about 2 ×. It is concluded that a PVT imaging screen with 2% Xylyl Flrpic, configured with a black backing, provides the best quality fast neutron image of the scintillators tested.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-018-6080-1