The level-1 trigger for the SuperCDMS experiment at SNOLAB
Abstract
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, , and a 99.9% trigger efficiency for signal amplitudes of 1.1 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.
Keywords
Cite
@article{arxiv.2204.13002,
title = {The level-1 trigger for the SuperCDMS experiment at SNOLAB},
author = {Jonathan S. Wilson and Hanno Meyer zu Theenhausen and Belina von Krosigk and Elham Azadbakht and Ray Bunker and Jeter Hall and Sten Hansen and Bruce Hines and Ben Loer and Jamieson T. Olsen and Scott M. Oser and Richard Partridge and Matthew Pyle and Joel Sander and Bruno Serfass and David Toback and Samuel L. Watkins and Xuji Zhao},
journal= {arXiv preprint arXiv:2204.13002},
year = {2022}
}
Comments
Accepted for publication in JINST