Alert

Due to a lapse in appropriations, the NRC has ceased normal operations. However, excepted and exempted activities necessary to maintain critical health and safety functions—as well as essential progress on designated critical activities, including those specified in Executive Order 14300—will continue, consistent with the OMB-Approved NRC Lapse Plan.

Junya Sumita

Junya Sumita has a Doctor of Engineering degree (with Graphite Material) followed by over 20 years of experience in the nuclear research and development, joining Japan Atomic Energy Agency in 1998.

Junya spent over 8 years within the High Temperature Engineering Test Reactor (HTTR) operation and maintenance section working on an HTTR projects.

Junya joined the Fuels and Materials for High Temperature Gas-cooled Reactor Group at the beginning of 2005 and have worked on evaluating the characteristics on ceramic materials, especially nuclear grade graphite material for High Temperature Gas-cooled Reactor (HTGR).

Junya has worked for HTGR Project Management Office at Tokyo Japan since 2022 and been in charge of HTGR demonstration program collaborating with UK national laboratory.

Page Last Reviewed/Updated Thursday, May 22, 2025