Characterization of Polyvinyl Toluene (PVT) Scintillators for Fast Neutron Imaging

被引：6
|
作者：
Oksuz, Ibrahim [1 ]
Chuirazzi, William [1 ]
Martinez, H. Paul [2 ]
Cherepy, Nerine [2 ]
Cao, Lei [1 ]
机构：
[1] Ohio State Univ, Dept Mech & Aerosp Engn, Nucl Engn Program, Columbus, OH 43210 USA
[2] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
来源：
HARD X-RAY, GAMMA-RAY, AND NEUTRON DETECTOR PHYSICS XX | 2018年 / 10762卷
关键词：
Neutron radiography; fast neutron; PVT; light output; spatial resolution; RADIOGRAPHY; DETECTOR;
D O I：
10.1117/12.2322828
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Polyvinyl Toluene (PVT) based plastic scintillators with varying dimensions and fluors have been characterized in terms of relative light output and spatial resolution. Scintillators were exposed to fast neutrons (similar to 2 MeV), and images were obtained with a setup consisting of an EMCCD camera, a mirror and a light-tight apparatus. Among scintillators with 2.0% Flrpic and 10.16 cm (4 inch) diameter, the 10.5-mm thick scintillator featured the highest light output while 3.0-mm provided the best spatial resolution. The deuterated 3.0-mm thick scintillator doped with 2.0% Flrpic showed a worse performance in terms of both light output and spatial resolution compared to that of undeuterated scintillator with the same thickness but doped with 2.0% X-Flrpic. This study reveals the effects of presence of deuterium in PVT, the thickness of scintillator, and the fluor on the light output and spatial resolution of plastic scintillator.
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页数：8
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