Operation, test, research and development of the High Temperature Engineering Test Reactor (HTTR) (FY2012)

Department of HTTR

The High Temperature Engineering Test Reactor (HTTR) constructed at the Oarai Research and Development Center of the Japan Atomic Energy Agency (JAEA) is the first high-temperature gas-cooled reactor (HTGR) in Japan. The HTTR is a graphite-moderated and helium gas-cooled reactor with 30 MW of thermal power. In fiscal year 2012, the certification evaluation of the nuclear facilities after the 2011 off the Pacific coast of Tohoku Earthquake (2011.3.11) was carried out with the equipment inspections and the seismic response analysis continuously after fiscal year 2011. Moreover, the action to re-operate the HTTR, such as repair works of the reactor buildings were done. This report summarizes activities and results of HTTR operation, maintenance, and several R&Ds, which were carried out in the fiscal year 2012.