NDLI: Evaluation of a composite stilbene for the fast neutron detection

Content Provider	IEEE Xplore Digital Library
Author	Byoung-Hwi Kang Seung-Kyu Lee Yong-Kyun Kim Galunov, N.Z. Gi-Dong Kim
Copyright Year	2010
Description	Author affiliation: Ion Beam Application Group, Korea Institute of Geoscience and Mineral Resources, Kaejeon, 305-350, Korea (Gi-Dong Kim) \|\| Department of Nuclear Engineering, Hanyang University, Seoul, 133-791, Korea (Byoung-Hwi Kang; Seung-Kyu Lee; Yong-Kyun Kim) \|\| Institute for Scintillation Materials of National Academy of Science of Ukraine, 61001 Kharkiv, Ukraine (Galunov, N.Z.)
Abstract	Stilbene is one of the representative scintillator for the fast neutron detection and also the powerful tools to estimate the neutron-yield evolution with a high temporal resolution against the background of accompanying gamma rays in experiments with non-stationary neutron sources. It demonstrates very high capability of neutron-gamma pulse shape discrimination and could provide high gamma-ray suppression that is essential for fast neutron spectrometry. However, the size of single crystal stilbene is limited due to the difficulties in the growing technology. In order to apply an effective and convenient detection technique for various neutron field measurement, we have developed a large area composite stilbene scintillator with a dimension of Φ 200 mm × 20 mm which was obtained from the grains of stilbene crystal. Crystalline grains of stilbene have been preliminarily obtained by mechanical grinding of stilbene single crystals, and a large size composite stilbene scintillator was manufactured with crystal grains into organosilicone base. A neutron tagger module was used for the signal digitization, which consists of Flash-ADC and FPGA implemented with real-time n-γ separation processor by using a charge comparison method. The neutron sources used for this study are Cf-252 and mono-energy fast neutrons by using the accelerator in Korea Institute of Geoscience and Mineral Resources (KIGAM). The detection and separation performances for gamma-ray and neutron were evaluated and compared with the single crystal stilbene and BC-501A liquid scintillator. The result shows that the detector could be possible to apply various fields for fast neutron detection.
Starting Page	125
Ending Page	127
File Size	777142
Page Count	3
File Format	PDF
ISBN	9781424491063
ISSN	10957863
e-ISBN	9781424491056
DOI	10.1109/NSSMIC.2010.5873729
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Neutrons Detectors Shape Crystals Gamma rays Geoscience
Content Type	Text
Resource Type	Article

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