DUSEL R&D: Fast Neutron Spectroscopy in the Deep Underground Environment

杜塞尔R

• 批准号: 0809696
• 负责人: Elizabeth Beise
• 金额: $ 48万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0809696&HistoricalAwards=false
• 关键词: DUSEL; R& Fast; Neutron; Spectroscopy

The goal of this project is to develop a spectrometer to detect fast neutrons which will allow the characterization of the background environment for sensitive underground experiments. These experiments, such as searches for WIMP dark matter, neutrinoless double beta decay, and detection of solar neutrinos, are some of the highest priority directions in nuclear and particle physics, and understanding the backgrounds in which they must operate is essential to their success. The spectrometer proposed here will use a technique called capture-gated spectroscopy, with a lithium-loaded liquid scintillator, and will be able to measure both the fluence and energy of neutrons up to 50 MeV. This technique also has important applications in homeland security and neutron dosimetry.

该项目的目标是开发一种探测快中子的分光计，以便能够确定敏感地下实验的背景环境特征。 这些实验，如寻找WIMP暗物质，无中微子双β衰变和探测太阳中微子，是核物理和粒子物理中最优先的方向，了解它们必须操作的背景对它们的成功至关重要。 这里提出的光谱仪将使用一种称为捕获门控光谱学的技术，使用锂装载的液体闪烁体，并且能够测量高达50 MeV的中子的注量和能量。 该技术在国土安全和中子剂量测定方面也有重要应用。