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arXiv 0811.1087astro-ph
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中微子天文学用South Pole冰声学特性的测量

Measurement of acoustic properties of South Pole ice for neutrino astronomy

Justin Vandenbroucke

摘要:

南极冰被预测为声学中微子探测的最佳介质。此外,冰是唯一的介质,其中所有三种稠密介质检测方法(光学,无线电和声学)可以用来监测相同的相互作用体积。在两种方法之间的重合检测事件允许显着的背景拒绝的信心,这是必要的研究罕见的GZK中微子。2007年和2008年,南极声学测试装置(SPATS)作为与冰立方实验相关的研究和开发项目安装。SPATS的目的是测量南极冰的声学特性,以确定未来大型混合阵列的可行性。SPATS的部署和性能的描述,是第一个结果和工作进展的声速,背景噪声和衰减。

英文摘要:

South Pole ice is predicted to be the best medium for acoustic neutrino detection. Moreover, ice is the only medium in which all three dense-medium detection methods (optical, radio, and acoustic) can be used to monitor the same interaction volume. Events detected in coincidence between two methods allow significant background rejection confidence, which is necessary to study rare GZK neutrinos. In 2007 and 2008 the South Pole Acoustic Test Setup (SPATS) was installed as a research and development project associated with the IceCube experiment. The purpose of SPATS is to measure the acoustic ice properties at the South Pole in order to determine the feasibility of a future large hybrid array. The deployment and performance of SPATS are described, as are first results and work in progress on the sound speed, background noise, and attenuation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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