Korea Atomic Energy Research Institute

Korea Hydro Nuclear Power Co., Ltd.

Jong Man Park

Sung Hwan Kim

Sung Chan Park

Ho Jin Ryu

Yoon Sang Lee

Seok Jin Oh

Yong Jin Jeong

Chul Gyo Seo

Don Bae Lee

Chang Kyu Kim

Tae Won Cho

Kyu Hong Lee

Ki Nam Kim

Disclosed are a method of manufacturing a uranium target, the method including (a) a step of preparing a conjugate including a matrix and a uranium target green compact formed in the matrix; and (b) a step of performing thermo-mechanical treatment through additional heat treatment at 530&#xb0; C. to 600&#xb0; C. during a hot rolling pass in a process of hot-rolling the conjugate, and a method of extracting radioactive Mo-99 using the uranium target.

Method of manufacturing uranium target to be soluble in basic solution and method of extracting radioactive Mo-99 using the same

The present invention relates to a multi-core fuel rod for research reactor and, more particularly, to a multi-core fuel rod for research reactor in which monolithic fuel cores made of uranium-molybdenum alloy are disposed in an aluminum matrix in a multi-core form. The multi-core fuel rod in accordance with the present invention provides a minimized contact surface area between nuclear fuel and aluminum, and reduces the formation of pores and swelling by restraining formation of reaction layer to avoid excessive reaction between the fuel and aluminum. Therefore, improved stability of nuclear fuel can be obtained by minimizing temperature rise as well as achieving high density and thermal conductivity of the fuel.

Multi-core fuel rod for research reactor and manufacturing method thereof

Growing community of inventors

Daejeon-si, South Korea

Jong Man Park