ydinjaetta
Ydinjäte is the term used to describe the radioactive waste produced by the nuclear fuel cycle and related activities. It encompasses spent nuclear fuel from reactors, irradiated reactor components, and residues from fuel fabrication or reprocessing, as well as wastes from medical, industrial, and research applications of radioactive materials. The radiological hazard of ydinjäte arises from long-lived isotopes and, in some cases, substantial heat generation.
Ydinjäte is commonly classified by radiation strength and heat output into high-level (HLW), intermediate-level (ILW), and
Management aims to isolate ydinjäte from the biosphere for the time required by its radioactivity. Short-term
Regulatory oversight is provided by national authorities aligned with international standards from bodies such as the