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KM3NeT status and plans

机译:KM3NeT的状态和计划

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The KM3NeT project is aiming to produce the most sensitive neutrino telescope ever built. Its envisagedlocation in the deep Mediterranean Sea optimizes the sensitivity for neutrino sources near the Galactic centre. Duringthe past year a number of major decisions have been made on technical implementations. We have adopted an opticalmodule (DOM) configuration housing many small photomultipliers rather than earlier traditional designs having asingle large PMT. The readout electronics is incorporated into this digital optical module. The site-to-shore commu-nicationis provided by an electro-optical cable allowing unique colour point-to-point communication between eachDOM and the shore station readout system. Each mechanical supporting structure consists of twenty 6 m long barswith a DOM at each end. The bars have a vertical separation of 40 m giving the full structure a height of around 900m. The foreseen budget allows for construction of about 300 of such structural units. Together they will create an in-strumentedvolume of between 5 and 8 km3. The sensitivity to point sources near the Galactic centre surpasses that ofany other telescope by two orders of magnitude.
机译:KM3NeT项目旨在生产有史以来最灵敏的中微子望远镜。它的设想位置位于地中海深处,优化了银河系中心附近对中微子源的敏感性。在过去的一年中,在技术实施方面做出了许多重大决定。我们已经采用了容纳许多小型光电倍增管的光学模块(DOM)配置,而不是具有单个大型PMT的早期传统设计。读出电子设备已合并到此数字光学模块中。现场到岸上的通信是由一条电光电缆提供的,它允许每个DOM与岸上站读出系统之间进行独特的颜色点对点通信。每个机械支撑结构均由二十根6 m长的钢筋组成,钢筋两端各有一个DOM。这些杆的垂直间距为40 m,整个结构的高度约为900 m。可以预见的预算允许建造大约300个这样的结构单元。他们将共同创造一个介于5和8 km3之间的仪器体积。银河系中心附近对点源的灵敏度比其他任何望远镜都高两个数量级。

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