From: Iodine-125 brachytherapy for brain tumours - a review
Permanent seeds
Temporary seeds
Activity per source
0.1-3mCi
3-50mCi
Dose
80-700Gy
30-200Gy
Dose rate
3-30cGy/h
3-125cGy/h
Number of sources per case
1-171
1-28
Time to dose
infinity
4-50 days