Modern Bt Techniques - Florence 2016

Seeds with 131 Cs Radioactive Isotope

1/2 compared to 125 I and 103 Pd

Biological Effectiveness

• Shorter T

9.689d vs. 59.49d and 16.991d

• Higher Energy

Dose Homogeneity

30keV vs . 28keV and 21keV

• Apparent Activity Conversion Factor 0.638 U.mCi -1 versus

1.27 U.mCi -1 for 125 I and 1.29 U.mCi -1 for 103 Pd