Citizens' Nuclear Information Center
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Possible increase of spent fuel to be reprocessed during active tests Step 3 of the active tests currently being carried out at the Rokkasho reprocessing plant were completed in April (see NIT 118). On...
Step 3 of “active tests” at the Rokkasho reprocessing plant were completed on April 26th. Although numerous problems have arisen, Japan Nuclear Fuel Ltd (JNFL) has not officially changed the November 2007 scheduled date...
On 10 February 2007 the Mainichi Shimbun reported that in the course of tests being carried out prior to decommissioning the Fugen Advanced Thermal Reactor (ATR, 165 MW) it was discovered that concrete walls...
Over the years there have been all sorts of cases of data fabrication and falsification at nuclear, thermal and hydroelectric power plants. Each time the power companies and plant makers apologize and say that...
Degradation cannot be predicted One of the most frightening type of nuclear accidents is a sudden break-up of the reactor pressure vessel as a result of embrittlement. The pressure vessel of a boiling water...
Photo: From left, Seok Kwanghoon, Kim Yongguk, chair Kim Sung Kuk, Mitsuhiko Tanaka and interpreter Kim Bonnyo On October 24th I attended a symposium in Busan, South Korea, concerning the life extension of...
On 7 February 2005, Fukui Governor Issei Nishikawa granted approval for the start of modifications to the Monju fast breeder reactor (FBR, 280 MW), which had been shut down for over nine years. Upon...
On September 7th the Minister of Economy Trade and Industry approved Kyushu Electric Power Company’s pluthermal1 plan for Genkai-3. This followed favorable reports by the Nuclear Safety Commission (NSC) on 29 August and by the...
On August 16th all three reactors tripped automatically at Tohoku Electric Power Company’s Onagawa Nuclear Power Plant in response to a magnitude 7.2 earthquake off the coast of Miyagi Prefecture. The direct reason...
There are currently 53 operational nuclear reactors in Japan: 30 boiling water reactors (BWR) and 23 pressurized water reactors (PWR). Of those, nine (4 BWRs and 5 PWRs) commenced operations more than 30 years...