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arXiv 0707.3757astro-ph
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永久冻土--超高能中微子探测的替代靶材料?

Permafrost - An Alternative Target Material for Ultra High Energy Neutrino Detection?

R. Nahnhauer, A. A. Rostovtsev, D. Tosi

摘要:

近年来,能量在1017 eV以上的宇宙中微子的探测越来越受到人们的关注。正在讨论的~100立方公里大小的物质阵列的可能目标材料是水、冰和岩盐。在这里,我们建议调查永久冻土作为一个额外的替代方案,覆盖地球陆地表面的20%,并在某些位置达到1000米以上的深度。如果无线电和声信号的衰减长度足够大,可以通过现场测量来证明,则在北半球可以在这种材料内建造大型混合阵列。在西伯利亚的可能位置的属性和问题讨论如下。一些声学数据进行比较,实验室测量使用“人造”永久冻土。

英文摘要:

The detection of cosmic neutrinos with energies above 1017 eV got growing interest during recent years. Possible target materials for in-matter arrays of ~100 km3 size under discussion are water, ice and rock salt. Here we propose to investigate permafrost as an additional alternative, covering ~20% of Earth land surface and reaching down to more than 1000 m depth at certain locations. If sufficiently large attenuation lengths for radio and acoustic signals can be demonstrated by in-situ measurements, the construction of a large hybrid array within this material may be possible in the Northern hemisphere. Properties and problems of a possible location in Siberia are discussed below. Some acoustic data are compared to laboratory measurements using "artificial" permafrost.

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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