444-445 / 2001
I-125
Pd-103
Cs-131
•
4.6mm long and 0.8mm diameter •
4.6mm long and 0.8mm diameter •
Short half-life (9.7 days) may
•
I-125 adsorbed on silver rod,
encased in titanium
•
Half-life of 59.4 days
•
Energy 27.4 & 31.4keV x-rays
( l t
t ) Al 35 5k V
•
Pd plated graphite pellets 0.9mm
x 0.6mm
•
Titanium end cap
•
Half-life 17 days
E 20 8 K V
provide radiobiological
advantage for some prostate
cancers
•
-ray emitter with highest peaks
f
29 t 34 k V
e ec ron cap ure so . e
gamma photons
•
nergy . e
rom o e
•
Clinical protocol developed in
Texas Cancer Center by
Prestidge et al.