#p148: Tb156 half-life from 534 keV using foil 9. Beckie quotes chi^2/dof = 0.4
#11 data points. Time since irrad (s) vs ln(A_e)
#Chisqw/D.O.F. = 0.284548, (weighted by 1.0/dy^2), fitting mode: 7
 96473.000      4.141     0.14
100715.000      4.109     0.14
115975.000      4.315     0.13
162030.000      3.978     0.15
179062.000      4.037     0.15
229451.000      3.935     0.15
251933.000      3.944     0.15
355750.000      3.739     0.17
457772.000      3.614     0.18
573750.000      3.436     0.19
756501.000      3.102     0.22
& #lsf fit: y = 4.306225 - 1.52784e-06*x
539.9783	4.3054	  0.00
999402.6461	2.7793	  0.00