DYNAMIC RADIATION MONITORING METHOD Russian patent published in 2011 - IPC G01T1/167 

FIELD: ecology.

SUBSTANCE: dynamic radiation monitoring method involves recording of ionisation radiation at least with one detector, continuous measurement at unit time interval of the number of pulses χ_i of detector, which is proportional to flow of recorded radiation, determination of background value χ_b, which differs by the fact that during the monitoring there constantly determined is background value as where m - positive number meeting the ratio m≤σ/S, where σ -standard deviation of detector signal from minimum possible background value, S - maximum possible curvature value of background variation, there calculated is difference the values of which are compared with threshold K being dimensionless constant value during monitoring within 1 to 4, and in case the above difference exceeds threshold K, radioactivity in the monitoring object is supposed, and values χ_i at which the above difference exceeds the threshold are excluded from the process of determining χ_b value.

EFFECT: improving detection reliability of radioactive sources in conditions of quickly changing background.