The MicroBooNE continuous readout stream for detection of supernova neutrinos
The MicroBooNE continuous readout stream for detection of supernova neutrinos
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用于检测超新星中微子的 MicroBooNE 连续读出流
DOI：
10.1088/1742-6596/1312/1/012006
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
Crespo-Anadón, J I
中科院分区：
文献类型：
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作者：
Crespo-Anadón, J I
自 1987 年首次探测到核心塌陷超新星中微子以来，所有大型中微子实验都试图探测来自附近下一个超新星的中微子。其中，液氩时间投影室（LArTPC）对超新星的电子中微子通量具有独特的敏感性。然而，这些事件的能量较低（兆电子伏特级），而且目前运行的所有大型（数吨）LArTPC都位于地球表面附近，因此受到强烈的宇宙射线通量的影响，使得超新星中微子的触发非常具有挑战性。相反，MicroBooNE 开创了一种基于连续读出流和其他中微子探测器（超新星早期预警系统，或 SNEWS）生成的延迟触发来探测超新星中微子的新颖方法。 MicroBooNE 的数据会临时存储几天，等待 SNEWS 警报提示永久记录数据。为了应对 MicroBooNE 的 TPC 和 PMT 系统连续读出产生的大数据速率，开发了基于 FPGA 的零抑制算法。
Since the original detection of core-collapse supernova neutrinos in 1987, all large neutrino experiments seek to detect the neutrinos from the next nearby supernova. Among them, liquid argon time projection chambers (LArTPCs) offer a unique sensitivity to the electron neutrino flux of a supernova. However, the low energy of these events (scale of MeVs), and the fact that all large (multi-tonne) LArTPCs operating at the moment are located near the Earth's surface, and are therefore subject to an intense cosmic ray flux, makes triggering on the supernova neutrinos very challenging. Instead, MicroBooNE has pioneered a novel approach for detecting supernova neutrinos based on a continuous readout stream and a delayed trigger generated by other neutrino detectors (the Supernova Early Warning System, or SNEWS). MicroBooNE's data is stored temporarily for a few days, awaiting a SNEWS alert to prompt the permanent recording of the data. In order to cope with the large data rates produced by the continuous readout of the TPC and the PMT systems of MicroBooNE, FPGA-based zero-suppression algorithms have been developed.
MicroBooNE 实验的 PMT 触发和读数
DOI：
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发表时间：
2013
期刊：
影响因子：
--
作者：
D. Kaleko
通讯作者：
D. Kaleko