Analysis of Correlations between the Counting Rate for Natural-Radioactivity Gammas at the Large Volume Detector (LVD) and Atmospheric Pressure
摘要
Abstract
The effect of atmospheric pressure on the counting rate for natural-radioactivity gammas measured at the Large Volume Detector (LVD) in the continuous-monitoring mode is studied. Gamma emissions in the time series are associated with radon emanation from rock in the underground experimental hall. No direct relationship between changes in the pressure and in the counting rate for gammas is found on the basis of an analysis of hourly data. Also, no delayed pumping effect for gammas is observed during sharp pressure drops. A strong anticorrelation between the trends in the change in counting rate for gammas and the change in pressure is revealed on the scale of three to four months.