Comparative analysis of long-term gamma-background measurements by different detectors in the Chоrnobyl Exclusion Zone

Anatolii Dmytrovych Skorbun (1) , Oleksandr A Kuchmagra , Boris M Sploshnoy

1 Institute for safety problems of nuclear power plant NAS of Ukraine

Regular variations of gamma-background intensity were revealed in sets of measurements of background dose rate in exclusion zone around Chornobyl atomic station. Daily and approximately 5-6 days variations are especially noticeable among them. To prove that revealed variations are not caused by meteorological conditions or by peculiarities of the equipment, the signals from two different detection systems which work simultaneously have been analyzed. The conclusion was made that the complex of the observed regularities is impossible to explain by trivial reasons like meteorological conditions or by equipment effects.

Mots clés: gamma background; monitoring; regular variations; daily variations

Domaines: Physique [physics]; Physique Nucléaire Expérimentale [nucl-ex]

Anatolii Dmytrovych Skorbun, Oleksandr A Kuchmagra, Boris M Sploshnoy. Comparative analysis of long-term gamma-background measurements by different detectors in the Chоrnobyl Exclusion Zone. 2021. ⟨hal-03195000⟩