• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nuclear Instruments & Methods in Physics Research >A multilayer surface detector for ultracold neutrons
【24h】

A multilayer surface detector for ultracold neutrons

机译：用于超冷中子的多层表面探测器

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A multilayer surface detector for ultracold neutrons (UCNs) is described. The top ~(10)B layer is exposed to vacuum and directly captures UCNs. The ZnS:Ag layer beneath the ~(10)B layer is a few microns thick, which is sufficient to detect the charged particles from the ~(10)B(n,α)~7Li neutron-capture reaction, while thin enough that ample light due to a and ~7Li escapes for detection by photomultiplier tubes. A 100-nm thick ~(10)B layer gives high UCN detection efficiency, as determined by the mean UCN kinetic energy, detector materials, and other parameters. Low background, including negligible sensitivity to ambient neutrons, has also been verified through pulse-shape analysis and comparison with other existing ~3He and ~(10)B detectors. This type of detector has been configured in different ways for UCN flux monitoring, development of UCN guides and neutron lifetime research.
机译：描述了一种用于超冷中子（UCN）的多层表面探测器。顶层〜（10）B暴露于真空中并直接捕获UCN。 〜（10）B层下方的ZnS：Ag层厚几微米，足以检测〜（10）B（n，α）〜7Li中子俘获反应中的带电粒子，同时又足够薄以至于由于存在a和〜7Li逸出的光线充足，因此可以通过光电倍增管进行检测。由平均UCN动能，检测器材料和其他参数确定，厚度为100 nm的〜（10）B层可提供较高的UCN检测效率。低背景，包括对环境中子的灵敏度可忽略不计，也已通过脉冲形状分析以及与其他现有的〜3He和〜（10）B探测器的比较进行了验证。这种类型的检测器已经以不同的方式配置用于UCN通量监测，UCN导管的开发和中子寿命研究。

著录项

  • 来源
  • 作者

    Zhehui Wang; M.A. Hoffbauer; C.L. Morris; N.B. Callahan; E.R. Adamek; J.D. Bacon; M. Blatnik; A.E. Brandt; L.J. Broussard; S.M. Clayton; C. Cude-Woods; S. Currie; E.B. Dees; X. Ding; J. Gao; F.E. Gray; K.P. Hickerson; A.T. Holley; T.M. Ito; C.-Y. Liu; M. Makela; J.C. Ramsey; R.W. Pattie Jr.; D.J. Salvat; A. Saunders; D.W. Schmidt; R.K. Schulze; S.J. Seestrom; E.I. Sharapov; A. Sprow; Z. Tang; W. Wei; J. Wexler; T.L. Womack; A.R. Young; B.A. Zeck;

  • 作者单位

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    Indiana University, Bloomington, IN 47405, USA;

    Indiana University, Bloomington, IN 47405, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    Cleveland State University, Cleveland, OH 44115, USA;

    North Carolina State University, Raleigh, NC 27695, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    North Carolina State University, Raleigh, NC 27695, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    North Carolina State University, Raleigh, NC 27695, USA;

    Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    Regis University, Denver, CO 80221, USA;

    University of California Los Angeles, Los Angeles, CA 90095, USA;

    Tennessee Technological University, Cookeville, TN 38505, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    Indiana University, Bloomington, IN 47405, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA,Indiana University, Bloomington, IN 47405, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    Joint Institute for Nuclear Research, 141980 Dubna, Russia;

    University of Kentucky, Lexington, KY 40506, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    North Carolina State University, Raleigh, NC 27695, USA;

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA;

    North Carolina State University, Raleigh, NC 27695, USA;

    North Carolina State University, Raleigh, NC 27695, USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ultracold neutrons; Multilayer surface detector; ~(10)B nanometer thin film; Neutron detection efficiency; Low background;

    机译：超冷中子;多层表面检测器;〜（10）B纳米薄膜;中子探测效率;低背景;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号