erateda A re a wa oe pe
18
and excretion of a number of radionuclides, including barium-140, cerjum-141
and -144, zirconium-95, ruthenium-103 and -106, and tellurium-127 and -129.
Studies of '06Ru metabolism were also done by Thampson et al. (1958) and
Furchner et a}. (1971).
Considerable work was done on radiobfotogy of
radiocerium (NCRP, 1978), not only because it {is an abundant fission product
with a 285-day half life, but al so because 144ce is a beta-emitting bone
"seeker that provides a valuable tool for understanding the effects of bone
seeking radionuclides (NCRP, 1978).
Reviews of the radfoecology of several
radionuclides have been published, fncluding ruthenium and rhodium (Auerbach
tia
setae
bg
and Olson, 1963), the rare earths (Palumbo, 1963), and zircontum (Held, 1963).