NUTHOS-15 Symbol mark The 15th International Topical Meeting on Nuclear Reactor Thermal-Hydraulics, Operation, and Safety
  NUTHOS-15   Shaping the Future of Next-Generation Nuclear Energy
    September 28 - October 1, 2026. Kashiwa-no-ha, JAPAN

Plenary Speakers

Dr. Caleb S. Brooks (University of Illinois)

"Accelerating advanced nuclear through the Illinois microreactor demonstration project"

Bio:
Dr. Caleb Brooks is a professor in the Nuclear, Plasma, and Radiological Engineering Department at the University of Illinois Urbana-Champaign and a Donald Biggar Willett Faculty Scholar. He holds B.S. and Ph.D. degrees in nuclear engineering from Purdue University and has been a member of the UIUC faculty since 2014. As the Director of the Illinois Microreactor RD&D Center, his work is focused on enabling and expanding safe, peaceful uses of nuclear power. Current research activities in this Center include microreactor modeling and simulation, siting analysis, market analysis, instrumentation, operations and reactor control, licensing, and policy. Beyond his work in the Center, Dr. Brooks is also the director of the Multiphase Thermo-fluid Dynamics Lab (MTDL) which specializes in thermo-fluid dynamics of nuclear systems and reactor flows, and hybrid energy approaches for existing and future power systems. He has received the thermal-hydraulics division and society-wide young member research awards from the Atomic Energy Society of Japan, and the Landis Young Member Engineering Achievement Award from the American Nuclear Society.

Dr. Emmanuel Porcheron (ASNR Saclay)

"Aerosol behavior and mitigation strategies for safety assessment in the context of Fukushima Daiichi fuel debris removal"

Bio:
Dr. Emmanuel Porcheron is head of the Aerosol Physics and Metrology Laboratory at ASNR Saclay, with more than 25 years of experience in multiphase flow characterization and transfer analysis applied to nuclear safety.
His research focuses on airborne pollutants—gases and aerosols—their containment, transport, and mitigation under both normal and accidental conditions in nuclear facilities. Dr. Porcheron has supervised over ten PhD students and authored more than 45 peer-reviewed journal articles. He served as task leader for OECD/NEA post-Fukushima projects (PreADES and FACE) dealing with radioactive aerosol management for the Fukushima Daiichi decommissioning. He also contributes to the evaluation committees of the French High Council for the Evaluation of Research and Higher Education (HCERES) as an expert and chair.
Since 2015, he has also coordinated, within a French consortium involving ONET and CEA, studies on aerosol behavior and mitigation strategies to support Fukushima Daiichi fuel debris removal for the Japanese authorities.

Dr. Yuki Ishiwatari (Hitachi, Ltd.)

"Innovating and Applying Advanced Technologies to Meet Energy and Societal Needs"

Bio:
Dr. Ishiwatari began his career at the University of Tokyo in research, education, and research reactor management. Joined Hitachi in 2013, working six years as a PRA engineer, followed by three years in M&A and two years in business risk management. Currently leading digital transformation and global business strategy for Hitachi's Nuclear Energy Business.