Operational experiences of fast neutron source reactor 'YAYOI' as a pulsed fast reactor

Autor: Isao Saito, Shigehiro An, Takaaki Tamura, Hiroaki Wakabayashi
Rok vydání: 1998
Předmět:
Zdroj: Progress in Nuclear Energy. 32:43-52
ISSN: 0149-1970
DOI: 10.1016/s0149-1970(97)00006-1
Popis: University of Tokyo research reactor “YAYOI” was intended to be operated as a dynamic fast neutron source reactor as well as a stationary one. It was equiped with reactivity adding devices with both slow and quick action. The unique idea of fly—through type pulse reactivity addition into the core lends itself to minimizing thermal shock problems pertaining to fast burst reactors thereby increasing safety of a single shot type burst reactor. Operational experience of YAYOI obtained during the dynamic testing of prompt supercritical state are described here with some explanation of design aspects of YAYOI as a fast pulsed reactor. Throughout present experiments, the prompt supercritical state reactivity of about up to 29 cents was realized for YAYOI core, and it was confirmed that the sizes of pulse power were well controllable with this reactivity pulser (R—P) mode pulse operation.
Databáze: OpenAIRE