Dr. Yoon Chang joined Argonne National Laboratory in 1974 and has been responsible for leadership of advanced reactor design and fuel cycle technology development activities in positions of increasing responsibility including: General Manager of the Integral Fast Reactor Program, 1984-94; Associate Laboratory Director for Engineering Research, 1998-02; Interim Laboratory Director, 1999-00; Associate Laboratory Director at Large, 2002-06; and Argonne Distinguished Fellow, 2006-08. He retired in November 2008. Currently he also serves as the Chair of IAEA’s Technical Working Group on Nuclear Fuel Cycle Options and Spent Fuel Management.

Dr. Chang’s most significant achievement is in the development of the Integral Fast Reactor (IFR) concept. In recognition of his technical analyses, decisions and leadership of all aspects of the IFR program, he was awarded the U.S. Department of Energy’s prestigious E.O. Lawrence Award. He is a Fellow and a recipient of the Walker Cisler Medal of American Nuclear Society.