论文标题
Snolab的SuperCDMS实验的1级触发器
The level-1 trigger for the SuperCDMS experiment at SNOLAB
论文作者
论文摘要
SuperCDMS Snolab暗物质搜索实验的目的是对o（1 eV）的能量沉积敏感。这对触发系统的分辨率，信号效率和噪声排斥施加了要求。为此，在自定义PCB上的FPGA中实现了SuperCDMS Level-1触发系统。作为有限脉冲响应滤波器实现的时域最佳滤清器算法的基线分辨率为噪声的标准偏差，$σ_n$的0.38倍，以及在典型噪声条件下的信号振幅为1.1 $σ_N$的99.9％的触发效率。灵活的触发逻辑嵌入模块化体系结构中，以多种目的和运行条件，以无用的方式启用可靠的触发和否决。本文详细介绍了触发体系结构和性能。
The SuperCDMS SNOLAB dark matter search experiment aims to be sensitive to energy depositions down to O(1 eV). This imposes requirements on the resolution, signal efficiency, and noise rejection of the trigger system. To accomplish this, the SuperCDMS level-1 trigger system is implemented in an FPGA on a custom PCB. A time-domain optimal filter algorithm realized as a finite impulse response filter provides a baseline resolution of 0.38 times the standard deviation of the noise, $σ_n$, and a 99.9% trigger efficiency for signal amplitudes of 1.1 $σ_n$ in typical noise conditions. Embedded in a modular architecture, flexible trigger logic enables reliable triggering and vetoing in a dead-time-free manner for a variety of purposes and run conditions. The trigger architecture and performance are detailed in this article.
