特邀文章:miniTimeCube
Invited Article: miniTimeCube
摘要:
介绍了一种新型的紧凑型中微子探测器miniTimeCube(mTC)的研制。mTC是一种多用途探测器,其目标不仅是探测中微子,还包括快中子/热中子。潜在的应用包括防止核材料扩散和调查反中微子短基线效应。mTC是一种塑料0.2% $^{10}$ B掺杂闪烁体(13 cm)$^3$立方体,周围有24个微通道板(MCP)光子探测器,每个探测器都有一个$8\times8$阳极,总共有1536个单独的通道/像素观察闪烁体。它使用安装在MCP顶部的定制电子模块,使我们的探测器紧凑,能够区分不同类型的事件并实时抑制噪声。该探测器目前正在马里兰州盖瑟斯堡的国家标准与技术研究所(NIST)中子研究中心(NCNR)核反应堆(20 MW $_\mathrm{th}$)部署和测试。正在建造一个用于进一步测试的屏蔽,校准和升级正在进行中。mTC的改进的时空分辨率将允许确定入射粒子的方向超出以前的能力。
英文摘要:
We present the development of the miniTimeCube (mTC), a novel compact neutrino detector. The mTC is a multipurpose detector, aiming to detect not only neutrinos but also fast/thermal neutrons. Potential applications include the counterproliferation of nuclear materials and the investigation of antineutrino short-baseline effects. The mTC is a plastic 0.2% $^{10}$B - doped scintillator (13 cm)$^3$ cube surrounded by 24 Micro-Channel Plate (MCP) photon detectors, each with an $8\times8$ anode totaling 1536 individual channels/pixels viewing the scintillator. It uses custom-made electronics modules which mount on top of the MCPs, making our detector compact and able to both distinguish different types of events and reject noise in real time. The detector is currently deployed and being tested at the National Institute of Standards and Technology (NIST) Center for Neutron Research (NCNR) nuclear reactor (20 MW$_\mathrm{th}$) in Gaithersburg, MD. A shield for further tests is being constructed, and calibration and upgrades are ongoing. The mTC's improved spatiotemporal resolution will allow for determination of incident particle directions beyond previous capabilities.
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