NEWMDB - The IAEA Nuclear Waste Management Database IAEA - International Atomic Energy Agency

Glossary of Terms


used in the NEWMDB to denote a nuclear facility, especially radioactive waste management facilities

A facility is something that is built, installed or established to serve a particular purpose. For example, in the NEWMDB a storage facility could be a physical structure that was specifically built to store radioactive waste or an existing structure that has been designated to store radioactive waste. A facility may consist of multiple physical structures - see storage unit.
filter leaching
a waste treatment method where filters, such as HEPA filters, are leached, for example by nitric acid solution, to remove radioactive contaminants
a waste treatment involving the separation of solids from liquids or gases by passing the mixture through the interstices of a suitable medium, for example filter paper, cloth or glass wool
Framework Component
the NEWMDB component that is used by Country Co-ordinators to customize how information about radioactive waste management programmes and inventories for their country will be reported to the NEWMDB
free release
see clearance
easily crumbled, pulverized, or reduced to powder; loose and granular material
fuel cycle
see nuclear fuel cycle
fuel enrichment
the physical process of increasing the concentration of the uranium-235 isotope relative to the predominant uranium-238 isotope in natural uranium
fuel fabrication
the manufacture of fuel for nuclear reactors