Snolab的News-G探测器

论文标题

Snolab的News-G探测器

The NEWS-G detector at SNOLAB

论文作者

Balogh, L., Beaufort, C., Brossard, A., Caron, J. F., Chapellier, M., Coquillat, J. M., Corcoran, E. C., Crawford, S., Dastgheibi-Fard, A., Deng, Y., Dering, K., Durnford, D., Garrah, C., Gerbier, G., Giomataris, I., Giroux, G., Gorel, P., Gros, M., Gros, P., Guillaudin, O., Hoppe, E. W., Katsioulas, I., Kelly, F., Knights, P., Kwon, L., Langrock, S., Lautridou, P., Martin, R. D., Mols, J. P., Muraz, J. F., Nikolopoulos, K., O'Brien, P., Piro, M. C., Rowe, N., Santos, D., Samuleev, P., Savvidis, G., Savvidis, I., Fernandez, F. Vazquez deSola, Vidal, M., Zampaolo, M.

论文摘要

Spheres-Gas（News-G）协作的新实验旨在实现$ \ MATHRM {sub-gev/c^{2}} $使用球形比例计数器（SPCS）的弱相互作用的大型粒子（WIMP）检测。 SPC是依靠单个电离电子能阈值电离的气态探测器。最新一代用于直接暗物质搜索的SPC已于2021年在加拿大的Snolab安装。本文详细介绍了News-G实验制造的不同过程。本文还概述了缓解策略，不同组件的放射性的测量以及用于量化和解决探测器背景的诱导背景事件速率的估计。

The New Experiments With Spheres-Gas (NEWS-G) collaboration intends to achieve $\mathrm{sub-GeV/c^{2}}$ 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.

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