Table 3.

Model results and uncertainty budget for ¹⁵⁵Eu Activity correction factor, f, for height change from 1978 to 2001.

Component		ui		Comments
h(t)		0.00655		From rectangular distribution uncertainty for height as a function of date.
r(E,h) γ		0.00020		From residuals of fit.
r(E,h) γ		0.00098		From tests of fit.
ε		0.00117		From uncertainty in relative shape of efficiency curve for γ’s.
r(h) β		0.00001		From 20 % uncertainty in R vs. height for β’s.
r(E) β		0.00003		From 60 % uncertainty in shape of efficiency curve for β’s.
uc		0.0067		combined uncertainty of f
Symmetrized, and corresponding asymmetric uncertainty component due to h(t)
f	±		+	−
0.9836	0.0066		0.0033	0.0104
Fractional contributions to f
Β	0.0020
γ	0.9980