The production of extremely toxic nuclide 210Po is the main disadvantage for Lead-Bismuth Eutectic Reactor and Spallation Target.During the decay process,it will emission an alpha particles in a half-life about 138.4 d 4 Sv is a lethal dose for short time,which means 5.0×10^(−8) g for ingestion and 1.0×10^(−8) g for inhalation.Therefore,Po-210 accumulation and its release fraction became the key issues to be obtained during operation and accidents.As a preliminary analyses,this report focus on the accumulation behavior and the release behavior for the tiny leakage from the reactor head.
展开▼
