Community Research and Development Information Service - CORDIS


It can be argued that reactivity accidents are not a matter of primary concern in nuclear safety analysis. This may be true in the case of light water reactors. But in other types of reactors, especially fast ones, much attention has to be paid to this kind of accident scenario. As a consequence in these cases the core lay-out is being strongly influenced by safety aspects. In hybrid systems these restrictions are much less of importance and therefore the core can be designed according to other criteria as for example neutron economy, optimal transmutation characteristics of minor actinides and long lived fission products, etc. Loss-of-coolant accidents which are of primary concern in pressurised waster reactors (PWR) are on the contrary not a problem in low pressure systems such as liquid metal cooled accelerator driven subcritical systems (ADS).

It is now recognized by many reactor physicists in governmental laboratories and industry that ADSs could play a substantial role in closing the fuel cycle. They offer the potential to allow for an effective incineration and, therefore, a minimization of long lived waste while operating in a substantially safe manner. .

Additional information

Authors: RIEF H, JRC Ispra (IT);WIDER H, JRC Ispra (IT)
Bibliographic Reference: Article: Indian Journal of Radiation Protection and Environment (1998)
Record Number: 199810517 / Last updated on: 1998-05-05
Original language: en
Available languages: en