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27 March, 2020

NRA Issues Draft Review Report for JAEA’s HTTR

At a regular meeting on March 25, the Nuclear Regulation Authority of Japan (NRA) issued a draft review report for the High-Temperature Engineering Test Reactor (HTTR), owned by the Japan Atomic Energy Agency (JAEA), saying that it was effectively compatible with the new regulatory standards. The reactor, with a thermal output of 30MW, is situated in Oarai Town (Ibaraki Prefecture).

The report will be finalized after being referred to the Japan Atomic Energy Commission (JAEC) and the minister of the Ministry of Economy, Trade and Industry (METI), as well as after being opened to the public for comments. As for the reactor’s location and structure, the NRA says that JAEA took uncertainties into consideration and sufficiently evaluated the risks of a tsunami, specifically recognizing that the HTTR is installed on high ground—some 36m above the sea—and that no seawater intake facility exists. Thus, the examination concluded that there was not any risk of safety functions being lost due to a tsunami. Additionally, JAEA evaluated various hypothetical accidents and how they would play out. For example, it determined that the concentration levels would not be high enou...more
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“The current situation at Fukushima Daiichi NPS” -From 3.11 toward the future- (ver, Jan. 2020)

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