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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Nuclear Science and Engineering
May 2026
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DTRA’s advancements in nuclear and radiological detection
A new, more complex nuclear age has begun. Echoing the tensions of the Cold War amid rapidly evolving nuclear and radiological threats, preparedness in the modern age is a contest of scientific innovation. The Research and Development Directorate (RD) at the Defense Threat Reduction Agency (DTRA) is charged with winning this contest.
International High Level Radioactive Waste Management (IHLRWM 2025)
Dr. Hiroyuki Umeki is an Integration Advisor of Nuclear Waste Management Organization of Japan (NUMO) to support overall technical activities at NUMO on geological disposal of HLW and long-lived intermediate-level waste (termed TRU waste in Japan), including knowledge management.
During his over 35 years work in radioactive waste management, he was strongly involved in the projects for developing a safety case of geological disposal for HLW and TRU waste in Japan at Japan Atomic Energy Agency and NUMO.
Dr Umeki has been intensively involved in international groups, particularly associated with the IAEA and the OECD/Nuclear Energy Agency (NEA).
Last modified October 7, 2025, 9:12am EDT
