Operation, test, research and development of the High Temperature Engineering Test Reactor (HTTR) (FY2011)

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 2011, planed operations and maintenance was disturbed by the 2011 off the Pacific coast of Tohoku Earthquake and the operation and maintenance plans were revised. The certification evaluation of the nuclear facilities after the earthquake was carried comprehensively out with the equipment inspections and the seismic response analysis. This report summarizes activities and results of HTTR operation, maintenance, and several R&Ds, which were carried out in the fiscal year 2011.