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首页> 外文期刊>Nuclear Instruments & Methods in Physics Research >LENDA: A low energy neutron detector array for experiments with radioactive beams in inverse kinematics
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LENDA: A low energy neutron detector array for experiments with radioactive beams in inverse kinematics

机译：LENDA：低能中子探测器阵列，用于反向运动学中的放射性束实验

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摘要

The Low Energy Neutron Detector Array (LENDA) is a neutron time-of-flight (TOF) spectrometer developed at the National Superconducting Cyclotron Laboratory (NSCL) for use in inverse kinematics experiments with rare isotope beams. Its design has been motivated by the need to study the spin-isospin response of unstable nuclei using (p.n) charge-exchange reactions at intermediate energies ( > 100 MeV/μ). It can be used, however, for any reaction study that involves emission of low energy neutrons (150 keV to 10MeV). The array consists of 24 plastic scintillator bars and is capable of registering the recoiling neutron energy and angle with high detection efficiency. The neutron energy is determined by the time-of-flight technique, while the position of interaction is deduced using the timing and energy information from the two photomultipliers of each bar. A simple test setup utilizing radioactive sources has been used to characterize the array. Results of test measurements are compared with simulations. A neutron energy threshold of < 150 keV, an intrinsic time (position) resolution of ～ 400 ps (～ 6 cm) and an efficiency > 20% for neutrons below 4 MeV have been obtained.
机译：低能中子探测器阵列（LENDA）是由国家超导回旋加速器实验室（NSCL）开发的中子飞行时间（TOF）光谱仪，用于稀有同位素束的逆运动学实验。其设计的动机是需要研究在中等能量（> 100 MeV /μ）下使用（p.n）电荷交换反应来研究不稳定核的自旋-异旋旋响应。但是，它可用于涉及低能中子（150 keV至10MeV）发射的任何反应研究。该阵列由24个塑料闪烁棒组成，能够以高检测效率记录反冲中子能量和角度。中子能量是通过飞行时间技术确定的，而相互作用的位置是使用每个条的两个光电倍增管的定时和能量信息来推导的。利用放射性源的简单测试装置已被用来表征阵列。将测试结果与模拟结果进行比较。对于低于4 MeV的中子，已经获得了<150 keV的中子能量阈值，〜400 ps（〜6 cm）的固有时间（位置）分辨率和> 20％的效率。

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  • 来源
    《Nuclear Instruments & Methods in Physics Research》 |2012年第2012期|p.117-124|共8页
  • 作者

    G. Perdikakis; M. Sasano; Sam M. Austin; D. Bazin; C. Caesar; S. Cannon; J.M. Deaven; H.J. Doster; C.J. Guess; G.W. Hitt; J. Marks; R. Meharchand; D.J.t. Nguyen; D. Peterman; A. Prinke; M. Scott; Y. Shimbara; K. Thorne; L.Valdez; R.G.T. Zegers;

  • 作者单位

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA,Joint Institute of Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824, USA;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA,Joint Institute of Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824, USA;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA,Joint Institute of Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824, USA;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA,Joint Institute of Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824, USA,GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, 64291 Darmstadt, Germany;

    Hastings College, Hastings, NE 68901, USA;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA,Joint Institute of Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824, USA;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA,Joint Institute of Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824, USA;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA,Joint Institute of Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824, USA,Department of Physics and Applied Physics, University of Massachusetts Lowell, Lowell, MA 01854. USA.;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA,Joint Institute of Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824, USA,Department of Applied Mathematics and Sciences, Khalifa University of Science, Technology, and Research. P.O. Box 127788, Abu Dhabi, UAE;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA,Joint Institute of Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824, USA,Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA;

    Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA,Joint Institute of Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824, USA;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA,Joint Institute of Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824, USA;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA,National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA;

    Michigan Technological University, Houghton, MI 49931-1295, USA;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA,Joint Institute of Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824, USA;

    National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Ml 48824, USA,Joint Institute of Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824, USA,Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA;

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  • 正文语种 eng
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  • 关键词

    neutron detector; neutron time-of-flight; low energy neutron detector; inverse kinematics; (p,n) charge-exchange;

    机译：中子探测器中子飞行时间;低能中子探测器;逆运动学（p;n）电荷交换;

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