Utilisation and Reliability of High Power Proton Accelerators

Workshop Proceedings, Daejeon, Republic of Korea, 16-19 May 2004

image of Utilisation and Reliability of High Power Proton Accelerators

Accelerator-driven systems (ADS) are being considered for their potential use in the transmutation of radioactive waste. The performance of such hybrid nuclear systems depends to a large extent on the specification and reliability of high power accelerators, as well as the integration of the accelerator with spallation targets and sub-critical systems. At present, much R&D work is still required in order to demonstrate the desired capability of the system as a whole.

Accelerator scientists and reactor physicists from around the world gathered at an NEA workshop to discuss issues of common interest and to present the most recent achievements in their research. Discussions focused on accelerator reliability; target, window and coolant technology; sub-critical system design and ADS simulations; safety and control of ADS; and ADS experiments and test facilities. These proceedings contain the technical papers presented at the workshop as well as summaries of the working group discussions held. They will be of particular interest to scientists working on ADS development as well as on radioactive waste management issues in general.



Research on the Accelerator-Driven Subcritical Reactor at the Kyoto University Critical Assembly (KUCA) with an FFAG Proton Accelerator

Nuclear Energy Agency

At the Kyoto University Research Reactor Institute (KURRI), a new project for research on the accelerator-driven subcritical reactor (ADS) was started in 2002. For this project, a new ring-type accelerator based on the up-to-date FFAG (fixed field alternating gradient) technology will be under construction through 2005. With this new accelerator, a proton beam having arbitrary energy from 2.5 to 150 MeV will be generated and the proton beam from this accelerator will be introduced into a core at the Kyoto University Critical Assembly (KUCA) in order to generate high-energy neutrons via collision with heavy metal (e.g. tungsten). Before starting this new experiment, basic research on ADS was performed at KUCA, combining a KUCA core with an accelerator to generate 14 MeV neutrons via a D-T reaction and to investigate the nuclear characteristics of a subcritical reactor with an external neutron source.


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