The Void and Hole Effect in D2Moderated Reactor

Autor: Yasushi Nakai, Shizuo Kikkawa, Mitsuo Yokota, Yasuhiko Miyasaka, Osamu Sugimoto, Isao Arase, Denziro Nemoto, Kinichi Hagioya
Rok vydání: 1964
Předmět:
Zdroj: Journal of Nuclear Science and Technology. 1:11-17
ISSN: 1881-1248
0022-3131
DOI: 10.1080/18811248.1964.9732069
Popis: The reactivity cbange due to increase in the radius of empty hole was measured in a D2O moderated reactor and some results differing from experiments with ZEEP were obtained. It can be concluded that the streaming in a hole is not so effective for reactivity. In measuring neutron flux in a void, a flat thermal neutron flux distribution was obtained and it has been concluded that the neutrons leaking through the empty hole or the void do not consist of thermal neutrons but fast neutrons for the most part. The experimental result of reactivity change due to the void location in the core indicates that the relation between the void location and the reactivity change is independent of the neutron flux distribution.
Databáze: OpenAIRE