A radioactive substance in special form refers to either a solid radioactive substance, which cannot disperse, or a sealed capsule which contains the radioactive substance.

radioactive source means radioactive material employed for the purpose of utilising its radioactivity;

Cancer cells take up the radioactive material, and the radioactive material destroys the cancer cells.

The glow discharge starter did not contain radioactive material.

Provided is a radioactive material recovery system and a radioactive material recovery method capable of recovering radioactive material with high efficiency.

Provision is made for a container (10) which stores and shields radioactive material.

The radioactive material is provided to deliver radiation energy to the tissue.

The radioactive material sequestration system may also include a probe.

A device for altering the rate of radioactive particle release from radioactive material having an energy source electrically coupled to radioactive material and methods of using the device to alter radioactive particle release rates.

orphan radioactive material means radioactive material that is no longer under the control of the owner or licence holder;

orphan radioactive material means radioactive material that is no longer under the control of the owner or licence holder;

A signal source for use as a frequency source or time keeping signal source includes a radioactive emission source generating a substantially periodic signal corresponding to a radioactive material's disintegration rate.

Radioactive sources are made from a foil (10) containing radioactive material, by cutting out hexagonal foil elements (12) from the foil, leaving no uncut portions of foil between adjacent hexagonal foil elements.

Activity: The rate of decay of a radioactive material.

It is also a highly dangerous radioactive material.