REMOTE CONTROL ROBOT FOR DECOMMISSIONING HORIZONTAL FUEL CHANNELS OF NUCLEAR REACTOR

Development of Remote Dismantling Systems for Decommissioning of Nuclear Facilities

In the Japan Power Demonstration Reactor decommissioning program remote handling technologies were developed that could be successfully applied to dismantling the core components and verified by successful work accomplishment. However, wider applications and intelligence to the work process were required to perform dismantling work efficiently. The dual arm systems and their control mechanism h...

Nuclear fuel in a reactor accident.

Nuclear accidents that lead to melting of a reactor core create heterogeneous materials containing hundreds of radionuclides, many with short half-lives. The long-lived fission products and transuranium elements within damaged fuel remain a concern for millennia. Currently, accurate fundamental models for the prediction of release rates of radionuclides from fuel, especially in contact with wat...

Decommissioning of Nuclear Facilities

Design of Remote Simulator for a Nuclear Fuel Cycle Facility

The goal of this study is to provide the basic technology for an operability of a remote manipulation of an advanced spent fuel conditioning process facility. The operability and maintainability of a manipulator in a hotcell which deals with nuclear materials is one of the most important issues that should be solved in the nuclear industry. Here, we describe the design of a graphic user interfa...

Safety Aspects of Nuclear Reactor Control

Reactor control and safety systems are discussed with emphasis on safety considerations. Consideration is given to the importance of reactor characteristics, control and safety system characteristics, the operational program of the reactor, and credible accidents, in a determination of safety of operation. Ecperience with research reactor control and safety systems has led to the development of...