Neutron detection efficiency of the Neutron dEtector with Xn Tracking (NEXT)

被引：2

作者：

Neupane, S. ^{[1
]}

Heideman, J. ^{[1
]}

Grzywacz, R. ^{[1
,3
]}

Hooker, J. ^{[1
]}

Jones, K. L. ^{[1
]}

Kitamura, N. ^{[1
]}

Thornsberry, C. R. ^{[1
]}

Heilbronn, L. H. ^{[2
]}

Rajabali, M. M. ^{[4
]}

Alberty-Jones, Y. ^{[5
]}

Derkin, J. ^{[5
]}

Massey, T. N. ^{[5
]}

Soltesz, D. ^{[5
]}

机构：

[1] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[2] Univ Tennessee, Dept Nucl Engn, Knoxville, TN 37996 USA

[3] Oak Ridge Natl Lab, Phys Div, POB 2009, Oak Ridge, TN 37831 USA

[4] Tennessee Technol Univ, Dept Phys, Cookeville, TN 38505 USA

[5] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2021年 / 1020卷

基金：

美国国家科学基金会;

关键词：

Neutron emission; Neutron detection; Efficiency;

D O I：

10.1016/j.nima.2021.165881

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

An efficient neutron detection system with good energy resolution is required to correctly characterize decays of neutron-rich nuclei where fl-delayed neutron emission is a dominant decay mode. The Neutron dEtector with Xn Tracking (NEXT) has been designed to measure fl-delayed neutron emitters. By segmenting the detector along the neutron flight path, NEXT reduces the associated uncertainties in neutron time-of-flight measurements, improving energy resolution while maintaining detection efficiency. Detector prototypes are comprised of optically separated segments of a neutron-gamma discriminating plastic scintillator coupled to position-sensitive photomultiplier tubes. The first performance studies of this detector showed that high intrinsic neutron detection efficiency could be achieved while retaining good energy resolution. The results from the efficiency measurements using neutrons from direct reactions are presented.

引用

页数：6

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