The NEWS-G detector at SNOLAB
L. Balogh, C. Beaufort, A. Brossard, J. F. Caron, M. Chapellier, J. M., Coquillat, E. C. Corcoran, S. Crawford, A. Dastgheibi-Fard, Y. Deng, K., Dering, D. Durnford, C. Garrah, G. Gerbier, I. Giomataris, G. Giroux, P., Gorel, M. Gros, P. Gros, O. Guillaudin, E. W. Hoppe
TL;DR
The paper describes the design, fabrication, and background mitigation strategies of the NEWS-G detector at SNOLAB, a gaseous spherical proportional counter aimed at detecting sub-GeV/c² WIMPs for dark matter research.
Contribution
It provides detailed insights into the construction, radioactivity measurements, and background estimation methods for the NEWS-G detector, advancing direct dark matter detection techniques.
Findings
Successful installation of the detector at SNOLAB in 2021
Quantified background event rates from detector components
Implemented mitigation strategies to reduce background noise
Abstract
The New Experiments With Spheres-Gas (NEWS-G) collaboration intends to achieve Weakly Interacting Massive Particles (WIMPs) detection using Spherical Proportional Counters (SPCs). SPCs are gaseous detectors relying on ionization with a single ionization electron energy threshold. The latest generation of SPC for direct dark matter searches has been installed at SNOLAB in Canada in 2021. This article details the different processes involved in the fabrication of the NEWS-G experiment. Also outlined in this paper are the mitigation strategies, measurements of radioactivity of the different components, and estimations of induced background event rates that were used to quantify and address detector backgrounds.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.