Fast Reactors and Accelerator Driven Systems Knowledge Base

Conference Article: Accelerator driven subcritical systems with enhanced neutron multipliction

S.R.Dogwekar, S.V.Lawande and S.S.Kapoor, BARC

Abstract

Utilisation of Thorium, by way of the 233 U-Th cycle, is of particular interest to the Indian Nuclear Power Programme because of large Thorium deposits and limited Uranium reserves. Several schemes, such as fast and advanced heavy water reactors, leading to Thorium utilisation, are under study at this centre. The present paper discusses a scheme for evolving a practical accelerator driven sub critical 233 U-Th system with increased neutron multiplication and a consequent reduced requirement of the accelerator current. It is shown that the requirement of the accelerator current is considerably reduced if a sub critical assembly with a given K eff is composed of two partially coupled regions.

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key words: Fast Neutron Spectrum Systems, Nuclear Technology
Reference:
Technical Committee Meeting, Madrid, Spain 17-19 September 1997
International Atomic Energy Agency, Vienna (Austria)
IAEA-TC--903.3, pp:323-346