GE RSDetection RS-S131-200-ER0000 - Page 71

RSDetection
User’s Manual
Copyright © 2016 General Electric Company. All Rights Reserved S131-200-UM Rev A
Page 57
g
4. Calculate the coefficient of variation of individual readings:
V = σ / k
V = 3.6e-11 / -2.333e-8
V = 0.154%
V = 0.154% is less than 1% and indicates acceptable data.
5. Correct k(Co
60
) to k(Ra
226
):
k
(Ra226) = 0.989 *
k
(Cs137)
k
(Ra226) = 0.989 x -2.333e-8 amps/R/h
k
(Ra226) =2.308e-8 amps/R/h