Nobuyuki Hamada

As of 1 September 2026

Nobuyuki Hamada, RT, Ph.D.

Nobuyuki Hamada was born in Japan in 1976. He received a BSc in radiological sciences from Ibaraki Prefectural University of Health Sciences, and became a registered radiological technologist in 1999. He earned his MSc and PhD in pharmaceutical sciences from Nagasaki University in 2001 and 2004, respectively. He was a Visiting PhD Student at the UK Gray Cancer Institute for 6 months in 2003. He was a postdoctoral fellow at the National Institute of Radiological Sciences and in Tohoku University Institute of Development, Aging and Cancer, and a COE Associate Professor in Gunma University Graduate School of Medicine. He is currently a Senior Research Scientist at CRIEPI, with his secondary appointments including a Specially Invited Professor at Kindai University Graduate School of Pharmacy, and a Visiting Professor at Hokkaido University Faculty of Health Sciences and Hiroshima University Research Institute for Radiation Biology and Medicine.

In ICRP, he co-chairs Task Group 119 and serves on Committee 1, Task Groups 111 and 123. He has mentored five mentees from five countries, and served as a corresponding author of two peer-reviewed international journal papers first authored by mentees. He was a member of Task Group 102 that produced Publication 152, Associate Editor for Publications 126–132, and Assistant Scientific Secretary.

Besides such ICRP activities, he serves on the UNSCEAR Expert Group on Effects of Ionizing Radiation on the Nervous System, NCRP PAC 1 and OECD/NEA/CRPPH/HLG–LDR/Rad-Chem AOP Topical Group, and chairs IRPA Task Group on tissue reactions. He was a Consultant to NCRP Scientific Committee 1–23 that produced NCRP Commentary No. 26, a member of OECD/NEA/CRPPH/EGRPS that produced NEA No. 7265 report, IRPA Task Group Phase 3 “The implementation of the eye lens dose limit”, and Chair of Scientific Advisory Board for the European CONCERT LDLensRad.

He has been involved in various radiation effect studies since 1998, his current focus being placed on tissue reactions (e.g., those in the eye, circulatory system and nervous system). He has published >185 papers in peer-reviewed international journals, and has received >25 awards (e.g., the 2013 Michael Fry Award and the 2022 J.W. Osborne Award, both from Radiation Research Society). He serves on various journals, such as Associate Editor for Radiation Research and International Journal of Radiation Biology, and Editorial Board member for Mutation Research/Reviews in Mutation Research, Journal of Radiation Protection and Research (jointly published by Australian ARPS, Japanese JHPS & Korean KARP), Radioprotection (by French SFRP), and Radiation Protection and Environment (by Indian IARP).