Ambient humidity, the overlooked influencer of radioactivity measurements

IF 2.1 3区工程技术 Q2 INSTRUMENTS & INSTRUMENTATION Metrologia Pub Date : 2023-11-14 DOI:10.1088/1681-7575/ad0c9f

Stefaan Pommé, Heiko Stroh, Timotheos Altzitzoglou, Jan Paepen, Raf Van Ammel, Maria Marouli, Leen Verheyen, Michael Unterweger, Ryan Fitzgerald, Denis Bergeron, L Pibida, Ole J. Naehle, Karsten Kossert, Natasha Ramirez, Emma Bendall, Andrew Fenwick, Kelley Ferreira, John Keightley, Mihaela Baker, Sean Collins, Carine Michotte, Sammy Courte, Romain Maximilien Coulon, Tim Jackson, Freda Van Wyngaardt, Aldo Fazio, Pierino De Felice, Branko Vodenik, M Korun, Frederic Juget, Claude J Bailat, Youcef Nedjadi, Francois O Bochud, Thierry Buchillier, Timothy Roy, Raphael Galea, Ivan Kajan, Milton van Rooy, Paul McGinnity, Ivana Tucakovic, Iolanda Osvath, Krzysztof Pelczar

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引用次数: 1

Abstract

Abstract When verifying the validity of the exponential-decay law through 137 precise decay rate measurement series at various nuclear laboratories, minor violations have been observed in the shape of annual cycles in the residuals with different amplitudes and phase shifts. The timing and amplitude of these deviations have been compared with local weather data and it appears that ambient humidity is highly correlated with the observed instabilities in these radioactivity measurements. In fact, when compensating the residuals for a linear relationship with absolute humidity in air, most of the annual cycles are no longer statistically significant. As a result, the validity of the exponential-decay law can now be demonstrated with even higher fidelity.

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环境湿度，放射性测量中被忽视的影响因素

摘要:在不同的核实验室内，通过137个精确的衰减率测量序列来验证指数衰减定律的有效性，在不同振幅和相移的残差中观察到轻微的年周期违逆。这些偏差的时间和幅度已与当地天气数据进行了比较，结果表明，环境湿度与这些放射性测量中观测到的不稳定性高度相关。事实上，当补偿残差与空气中绝对湿度的线性关系时，大多数年周期在统计上不再显著。因此，指数衰减定律的有效性现在可以用更高的保真度来证明。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Metrologia 工程技术-物理：应用

CiteScore

2.80

自引率

25.00%

发文量

137

审稿时长

12 months

期刊介绍： Published 6 times per year, Metrologia covers the fundamentals of measurements, particularly those dealing with the seven base units of the International System of Units (metre, kilogram, second, ampere, kelvin, candela, mole) or proposals to replace them. The journal also publishes papers that contribute to the solution of difficult measurement problems and improve the accuracy of derived units and constants that are of fundamental importance to physics. In addition to regular papers, the journal publishes review articles, issues devoted to single topics of timely interest and occasional conference proceedings. Letters to the Editor and Short Communications (generally three pages or less) are also considered.