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Trigger based on the artificial neural network implemented in the cyclone V FPGA for a detection of neutrino-origin showers in the Pierre Auger surface detector

机译:基于Cyclone V FPGA中实现的人工神经网络的触发器,用于在Pierre Auger表面检测器中检测中微子起源的阵雨

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Observations of ultra-high energy neutrinos became a priority in experimental astroparticle physics. Up to now, the Pierre Auger Observatory did not find any candidate on a neutrino event. This imposes competitive limits to the diffuse flux of ultra-high energy neutrinos in the EeV range and above. The prototype Front-End boards for Auger-Beyond-2015 with Cyclone V E can test the neural network algorithm in real pampas conditions in 2015. Showers for muon and tau neutrino initiating particles on various altitudes, angles and energies were simulated in CORSIKA and OffLine platforms giving pattern of ADC traces in Auger water Cherenkov detectors. The 3-layer 12-10-1 neural network was taught in MATLAB by simulated ADC traces according the Levenberg - Marquardt algorithm. New sophisticated trigger implemented in Cyclone V E FPGAs with large amount of DSP blocks, embedded memory running with 120 - 160 MHz sampling may support to discover neutrino events in the Pierre Auger Observatory.
机译:超高能中微子的观测已成为实验性天体物理学中的优先事项。到目前为止,皮埃尔·俄格天文台尚未找到中微子事件的任何候选者。这对EeV范围及以上的超高能中微子的扩散通量施加了竞争性限制。带有Cyclone VE的Auger-Beyond-2015原型前端板可以在2015年的实际南美大草原条件下测试神经网络算法。在CORSIKA和OffLine平台上模拟了不同高度,角度和能量的μ和tau中微子引发粒子的阵雨俄歇水切伦科夫探测器中给出ADC迹线的模式。在MATLAB中,根据Levenberg-Marquardt算法,通过模拟ADC轨迹来教授3层12-10-1神经网络。在带有大量DSP模块的Cyclone V E FPGA中实现的新型复杂触发器,运行频率为120-160 MHz的嵌入式存储器可以支持在Pierre Auger天文台中发现中微子事件。

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