Question

Is it possible to use containers made of Cadmium to save the nuclear waste and avoid the risk of Nuclear radiation?

Answer

The concerns are for the more penetrating type of radiation.  If the type of the radiation is x-ray or gamma,  then materials that are dense and have high atomic number are best suited for the job.  The higher the energy of the radiation, the thicker the material has to be in order to shield the radiation.  Rock, soil, and concrete can do the same job, but larger amounts of it will be required.  I suppose cadmium could be used as a barrier to such radiation, but the cost and health risks most likely would out way its benefits.  If the radiation is neutron based than hydrogen-based materials are necessary to absorb the radiation.

- Chadron Friesen