Recent developments in deuterated scintillators for neutron measurements at low-energy accelerators

被引:9
|
作者
Becchetti, F. D. [1 ]
Raymond, R. S. [1 ]
Torres-Isea, R. O. [1 ]
Di Fulvio, A. [2 ]
Clarke, S. D. [2 ]
Pozzi, S. A. [2 ]
Febbraro, M. [3 ]
机构
[1] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
[2] Univ Michigan, Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA
[3] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA
基金
美国国家科学基金会;
关键词
Neutron detection; Organic scintillators; Deuterated scintillators; LIQUID SCINTILLATORS; EJ315;
D O I
10.1016/j.nima.2017.08.034
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Deuterated (H-2-based) organic scintillators, unlike conventional H-1-based scintillators can generate pulse-shape gated neutron energy spectra 1 to 30 MeV without need for time-of-flight (ToF). They are especially appropriate for measurements at high-intensity, low-energy accelerators where a pulsed beam is not available. Even when the latter is available, the loss in effective beam intensity combined with the need for suitable long-path ToF measurements can be very inefficient. In contrast, as we demonstrate, arrays of d-benzene scintillators (NE230, BC537, EJ315) and recently xylene-d10 (EJ301D) together with related digital signal processing (DSP) can provide highly efficient neutron energy measurements w/o n-ToF. We also report the recent synthesis and initial testing of crystalline d-stilbene as a neutron detector. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:72 / 78
页数:7
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