用于超高能中微子探测的声传感器研制
Acoustic sensor development for ultra high energy neutrino detection
摘要：
GZK中微子通量表征将从超高能宇宙射线携带的退化信息的部分恢复中，深入了解宇宙学源演化、源谱和注入时的组成。预计通量水平需要比目前运行的体积大得多的仪器体积（$>$ 100 km $^3$）。首先由Askaryan提出，无线电和声学探测技术都可以使这一探索成为可能，这要归功于较长的波衰减长度（预计超过一公里），与光学探测技术相比，允许更稀疏的仪器。我们目前的声学研发活动在我们的实验室开发适应的设备，报告所获得的灵敏度和三角测量能力，我们获得的，并定义了一些要求的建设一个全面的检测器。
英文摘要：
The GZK neutrino flux characterization would give insights into cosmological source evolution, source spectra and composition at injection from the partial recovery of the degraded information carried by the ultra high energy cosmic rays. The flux is expected to be at levels necessitating a much larger instrumented volume ($>$100 km$^3$) than those currently operating. First suggested by Askaryan, both radio and acoustic detection techniques could render this quest possible thanks to longer wave attenuation lengths (predicted to exceed a kilometer) allowing for a much sparser instrumentation compared to optical detection technique. We present the current acoustic R&D activities at our lab developing adapted devices, report on the obtained sensitivies and triangulation capabilities we obtained, and define some of the requirements for the construction of a full scale detector.
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