The level-1 trigger for the SuperCDMS experiment at SNOLAB

Journal Article · 04 July 2022 · Journal of Instrumentation

DOI: https://doi.org/10.1088/1748-0221/17/07/p07010 · OSTI ID:1867681

Wilson, John S.  ^[1]; Theenhausen Meyer, Hanno zu ^[2]; von Krosigk, Belina  ^[2]; Azadbakht, Elham ^[3]; Bunker, Raymond A.  ^[4]; Hall, J. ^[5]; Hansen, S. ^[6]; Hines, Bruce ^[7]; Loer, Ben M.  ^[4]; Olsen, Jamieson T. ^[6]; Oser, S. M.  ^[8]; Partridge, Richard  ^[9]; Pyle, Matt C.  ^[10]; Sander, J.  ^[11]; Serfass, Bruno  ^[12]; Toback, David  ^[3]; Watkins, S. L.  ^[12]; Zhao, X. ^[3]

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1. Baylor Univ., Waco, TX (United States)
2. Karlsruhe Inst. of Technology (KIT) (Germany); Univ. of Hamburg (Germany)
3. Texas A & M Univ., College Station, TX (United States)
4. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
5. SNOLAB, Lively (Canada); Laurentian Univ., Sudbury, ON (Canada)
6. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
7. Univ. of Colorado, Denver, CO (United States)
8. Univ. of British Columbia, Vancouver, BC (Canada); TRIUMF, Vancouver, BC (Canada)
9. SLAC National Accelerator Lab., Menlo Park, CA (United States)
10. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
11. Univ. of South Dakota, Vermillion, SD (United States)
12. Univ. of California, Berkeley, CA (United States)

The SuperCDMS SNOLAB dark matter search experiment aims to be sensitive to energy depositions down to Script 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, σn, 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.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: Arthur B. McDonald Institute; German Research Foundation (DFG); Germany’s Excellence Strategy - EXC 2121; National Science Foundation (NSF); Natural Sciences and Engineering Research Council (NSERC); Texas A&M University; USDOE; USDOE Office of Science (SC), High Energy Physics (HEP)
• Grant/Contract Number: AC02-05CH11231; AC02-07CH11359; AC02-76SF00515; AC05-76RL01830; SC0015657; SC0018981
• OSTI ID: 1867681
• Report Number(s): FERMILAB-PUB-22-375-PPD; PNNL-SA-171054; arXiv:2204.13002; oai:inspirehep.net:2072871
• Journal Information: Journal of Instrumentation, Journal Name: Journal of Instrumentation Journal Issue: 07 Vol. 17; ISSN 1748-0221
• Publisher: Institute of Physics (IOP)Copyright Statement
• Country of Publication: United States
• Language: English