Two-phase emission detector for measuring coherent neutrino-nucleus scattering
Two-phase emission detector for measuring coherent neutrino-nucleus scattering
复制标题
用于测量相干中微子核散射的两相发射探测器
DOI：
10.1109/tns.2004.836061
复制
发表时间：
2004
影响因子：
1.8
通讯作者：
A. Bernstein
中科院分区：
文献类型：
--
作者：
C. Hagmann;A. Bernstein
相干散射是标准模型预测的一种味盲、高速率、尚未检测到的中微子相互作用。我们建议使用一个紧凑的（千克级），两相（液-气）氩电离检测器来测量相干中微子散射的核。在我们的方法中，中微子在液体中引起的核反冲产生弱电离信号，该信号在电场的影响下被传输到气体中，通过电致发光放大，并由光电管或雪崩二极管检测。本文介绍了该探测器的特点，并估算了反应堆中微子源的信号率和本底率。这种类型的相对紧凑的探测器，能够检测相干散射，提供了一种新的方法来味盲检测人造和天文中微子，并可能允许开发紧凑的中微子探测器，能够非侵入式实时监测反应堆中的裂变材料。
Coherent scattering is a flavor-blind, high-rate, as yet undetected neutrino interaction predicted by the Standard Model. We propose to use a compact (kg-scale), two-phase (liquid-gas) argon ionization detector to measure coherent neutrino scattering off nuclei. In our approach, neutrino-induced nuclear recoils in the liquid produce a weak ionization signal, which is transported into a gas under the influence of an electric field, amplified via electroluminescence, and detected by phototubes or avalanche diodes. This paper describes the features of the detector, and estimates signal and background rates for a reactor neutrino source. Relatively compact detectors of this type, capable of detecting coherent scattering, offer a new approach to flavor-blind detection of man-made and astronomical neutrinos, and may allow development of compact neutrino detectors capable of nonintrusive real-time monitoring of fissile material in reactors.