ECOTEST MKS-05 TERRA Operating Manual page 54

Calculate the average value of surface beta-particles flux density and the main relative
error of measurement.
Place the dosimeter with the open window above the 4CO source surface, providing
surface beta-particles flux density from 50000 to 100000 part./(cm
surface of the detector is placed completely over the active surface of the source. Perform five
measurements of surface beta-particles flux density. Register the received results in the
protocol.
Calculate the average value of surface beta-particles flux density and the main relative
error of measurement.
The dosimeter is acknowledged to have passed the testing if the main relative error at
measurement of each surface beta-particles flux density level does not exceed
53
2
·min), so that the work
20 
200
,

