AI 中文总结
本文介绍一种利用氮核反应的充氮球形正比计数器，在1 bar压力下对0.75至2.75 MeV单能中子表现出线性能量响应，为安全廉价的中子能谱测量提供新方案。
AI 中文摘要
中子能谱学是众多科学和工业应用中不可或缺的工具，然而，现有方法存在限制其适用领域的局限性。一种安全且廉价的替代中子探测和能谱学方法是使用充氮球形正比计数器，该计数器利用$^{14}\rm{N(n,p)}^{14}\rm{C}$和$^{14}\rm{N(n},\alpha)^{11}\rm{B}$反应。通过单能中子束展示了该探测器的中子能谱测量能力。一个在$1$ bar压力下运行的充氮球形正比计数器，在雅典的“德谟克利特”国家科学研究中心的串联加速器上，暴露于能量从$0.75$ MeV到$2.75$ MeV的中子。在测量的统计精度内，观察到线性能量响应。
英文摘要
Neutron spectroscopy is an invaluable tool for a wide range of scientific and industrial applications, however, current approaches suffer from limitations that restrict their field of applicability. A safe and inexpensive alternative approach to neutron detection and spectroscopy is the use of a nitrogen-filled spherical proportional counter that exploits the $^{14}\rm{N(n,p)}^{14}\rm{C}$ and $^{14}\rm{N(n},α)^{11}\rm{B}$ reactions. The neutron spectroscopy capabilities of the detector are demonstrated using beams of mono-energetic neutrons. A nitrogen-filled spherical proportional counter, operating at a pressure of $1$ bar, is exposed to neutrons with energies from $0.75$ MeV to $2.75$ MeV at the Tandem accelerator of the National Centre for Scientific Research ``Demokritos'' in Athens. A linear energy response is observed, within the statistical precision of the measurements.
Comments11 pages, 12 figures
