The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 23, 2012
Filed:
May. 15, 2008
Toshiro Sakai, Tokyo, JP;
Takanari Inatomi, Tokyo, JP;
Hiroshi Nakamura, Tokyo, JP;
Kenjiro Fukamichi, Tokyo, JP;
Toshiyuki Suzuki, Tokyo, JP;
Katsushi Hasegawa, Tokyo, JP;
Yasushi Tsuboi, Tokyo, JP;
Makoto Kuramochi, Tokyo, JP;
Toshiro Sakai, Tokyo, JP;
Takanari Inatomi, Tokyo, JP;
Hiroshi Nakamura, Tokyo, JP;
Kenjiro Fukamichi, Tokyo, JP;
Toshiyuki Suzuki, Tokyo, JP;
Katsushi Hasegawa, Tokyo, JP;
Yasushi Tsuboi, Tokyo, JP;
Makoto Kuramochi, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A fast reactor having a reactivity control reflector has a reactor vessel in which a coolant is accommodated, a reactor core which is installed in the reactor vessel and dipped with the coolant, and a reflector installed outside of the reactor core so as to be movable in a vertical direction for controlling the reactivity of the reactor core. The reflector of the fast reactor has a lower neutron reflecting portion having a neutron reflection capability higher than that of the coolant and an upper cavity portion located above the neutron reflecting portion and having a neutron reflection capability lower than that of the coolant. The cavity portion is composed of a plurality of cylindrical hermetically-sealed vessels.