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arXiv · 1707.02134

Update of the trigger system of the PandaX-II experiment

Qinyu Wu·Xun Chen·Xiangdong Ji·Jianglai Liu·Siao Lei·Xiangxiang Ren·Meng Wang·Mengjiao Xiao·Pengwei Xie·Binbin Yan·Yong Yang
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Abstract

PandaX-II experiment is a dark matter direct detection experiment using about half-ton of liquid xenon as the sensitive target. The electrical pulses detected by photomultiplier tubes from scintillation photons of xenon are recorded by waveform digitizers. The data acquisition of Pandax-II relies on a trigger system that generates common trigger signals for all waveform digitizers. Previously an analog device-based trigger system was used for the data acquisition system. In this paper we present a new FPGA-based trigger system. The design of this system and trigger algorithms are described. The performance of this system on real data is presented.

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Qinyu Wu, Xun Chen, Xiangdong Ji, Jianglai Liu, Siao Lei, Xiangxiang Ren, Meng Wang, Mengjiao Xiao, Pengwei Xie, Binbin Yan, Yong Yang. 2017-07-07. Update of the trigger system of the PandaX-II experiment. https://doi.org/10.1088/1748-0221/12/08/t08004

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