Anaerobic数据采集系统的概念和性能
Concepts and performance of the Antares data acquisition system
摘要:
中微子望远镜的数据采集系统是基于独特的“所有数据都送到岸上”概念。在这个系统中,来自光电倍增管的所有信号都被数字化,所有数字数据都被发送到岸上,在那里它们被一个PC农场实时处理。自2006年3月探测器投入运行以来,该数据采集系统表现出出色的稳定性和灵活性。所应用的概念使得能够并行地对相同的数据操作不同的物理触发器,每个触发器针对特定的(天文)物理信号进行优化。触发器列表包括两个通用的μ介子触发器,一个是银河系中心触发器,另一个是伽马射线暴触发器。数据采集系统的性能通过其操作效率和数据过滤能力来评估。此外,不同的物理触发器的效率进行了量化。
英文摘要:
The data acquisition system of the Antares neutrino telescope is based on the unique "all-data-to-shore" concept. In this, all signals from the photo-multiplier tubes are digitised, and all digital data are sent to shore where they are processed in real time by a PC farm. This data acquisition system showed excellent stability and flexibility since the detector became operational in March 2006. The applied concept enables to operate different physics triggers to the same data in parallel, each optimized for a specific (astro)physics signal. The list of triggers includes two general purpose muon triggers, a Galactic Centre trigger, and a gamma-ray burst trigger. The performance of the data acquisition system is evaluated by its operational efficiency and the data filter capabilities. In addition, the efficiencies of the different physics triggers are quantified.
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