Proposed actions for safety improvements after TMI. A selective approach

The various proposals for reactor safety improvements made after TMI in various countries are listed, logically grouped into three categories and critically reviewed. Caution is advised against the tendency to rush into engineering efforts directed to the design and construction of mitigating devices against hypothetical core melt accidents. A new system, called the Core Rescue System, is proposed and discussed as a more realistic defence against unforeseen and confusing sequences of events. (author)