Development of a Low-Energy Neutrino Spectrometer to Measure the Neutrino Luminosity of the Sun

开发低能中微子光谱仪来测量太阳的中微子光度

• 批准号: 0654212
• 负责人: Ramaswamy Raghavan
• 金额: $ 36万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0654212&HistoricalAwards=false
• 关键词: Development; Low; Energy; Neutrino; Spectrometer

The basic objective of this proposal is to construct and operate MINILENS, a prototype designed to examine the fundamental practical feasibility of the LENS pp neutrino detector. This consists of demonstrating the ability of the LENS design:. To discriminate the large background basically due to the presence of the beta activity of the target In-115. To demonstrate the technical construction and operation of the newly invented scintillation lattice chamber that promises superior position resolution that does not suffer from the problems of using time-of-flight methods at the low energies characteristic of the LENS detector. To demonstrate the ability to produce large (at least 100's of liters of In-loaded liquid scintillator with extremely stringent demands on performance. . To show that MINILENS as constructed and operated in an underground location is robust, stable, safe and capable of delivering the required overall background suppression (both internal and external) and even show the ability to detect terrestrial signals that simulate pp neutrinos and thus measure the detection efficiency of the analysis protocols. The final results would demonstrate our control of both background and signal.In short, the construction and operation of MINILENS will unambiguously demonstrate the feasibility of LENS in all its technical aspects at a miniscule cost of the full scale detector.

本提案的基本目标是构建和运行MINILENS，这是一个原型，旨在检验LENS pp中微子探测器的基本实际可行性。这包括展示LENS设计的能力：为了区分大背景，主要是由于目标In-115的β活性的存在。为了演示新发明的闪烁点阵室的技术结构和操作，该闪烁点阵室保证了优越的位置分辨率，而不会受到使用飞行时间方法在透镜探测器低能特性下的问题的影响。演示在性能要求极其严格的情况下生产大型（至少100升）内装液体闪烁体的能力。为了表明MINILENS在地下位置建造和运行是稳健、稳定、安全的，能够提供所需的整体背景抑制（内部和外部），甚至能够检测模拟pp中微子的地面信号，从而测量分析协议的检测效率。最后的结果将展示我们对背景和信号的控制。简而言之，MINILENS的建造和运行将明确地证明LENS在所有技术方面的可行性，而成本则是全尺寸探测器的极小成本。