Kan-Ene Topics! 環エネTOPICS!


Takafumi OKITA

Position:       Assistant Professor
Degree:        Master of Engineering
Laboratory:  Quantum System Engineering
to Laboratory Homepage

Thermo-hydraulics of liquid metals

A liquid metal has various advantages, including high thermal conductivity, electrical conductivity, and a broad liquid temperature range. Our laboratory possesses a liquid lithium (Li) circulation loop. Li is one of the alkali metals that has high reactivity with the atmosphere and with water and is restricted under Japan’s Fire Service Act. In our laboratory, experimental and numerical studies related to the liquid Li fluid flow characteristics are conducted to develop the Li target of the accelerator-based neutron source. In addition, we are focusing on other metals such as sodium, gallium, and tungsten.


  1. T. Okita, E. Hoashi, S. Yoshihashi-Suzuki, T. Kanemura, H. Kondo, N. Yamaoka and H. Horiike, “Certification of contact probe measurement of surface wave of Li jet for IFMIF”, Fusion Engineering and Design, 98-99, 2050-2053, 2015
  2. T. Okita, J. Morioka, E. Hoashi, H. Okuno and H. Horiike, “Study on suppression of free surface fluctuation of liquid Li jet by magnetic field”, Fusion Engineering and Design, Volume 124, November 2017, Pages 975-979
  3. T. Okita, S. Matsuda, N. Yamaoka, E. Hoashi, T. Yokomine and T. Muroga, “Study on measurement of the flow velocity of liquid lithium jet using MHD effect for IFMIF”, Fusion Engineering and Design, Volume 136, Part A, November 2018, Pages 178-182