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Stabilisation at Fukushima Daiichi

Located in: Regulation and Safety

20 March 2011

Fukushima Daiichi 5 and 6 pond temperatures, 20 March 2011

Workers on site have succeeded in increasing the stability of the Fukushima Daiichi reactor units with units 5 and 6 now in cold shutdown. Pressure built up within unit 3 but a more significant venting does not seem necessary now.

Food samples show raised radioactivity

Located in: Regulation and Safety

19 March 2011

Levels of radioactivity exceeding the Japanese government-set level have been detected in samples of milk and spinach collected in the region of the Fukushima nuclear power plant. However, the levels measured are said to pose no immediate threat to health.

Fuel pond work at Fukushima

Located in: Regulation and Safety

19 March 2011

Recent work at Fukushima Daiichi has included making holes to allow hydrogen to disspate from fuel ponds at units 5 and 6, while unit 3's fuel pond is said to have stabilised.

Insight to Fukushima engineering challenges

Located in: Regulation and Safety

18 March 2011

Elena Buglova, March 2011 (IAEA) smallOfficial notices of the accidents at the Fukushima nuclear power plants give insight into the challenges faced by power plant engineers in the aftermath of last week's natural disasters.

UK advisor reassures on contamination fears

Located in: Regulation and Safety

18 March 2011

The UK government's chief independent scientific advisor has told the British Embassy in Tokyo that radiation fears from the stricken Fukushima nuclear power plant are a "sideshow" compared with the general devastation caused by the massive earthquake and tsunami that struck on 11 March.

Spraying continues at Fukushima Daiichi

Located in: Regulation and Safety

18 March 2011

Spraying of reactor buildings continues at Fukushima Daiichi today, while workers tried to make a connection to a nearby transmission line and checked on central fuel storage.

Progress by on-site workers

Located in: Regulation and Safety

17 March 2011

Fukushima Daiichi 3, March 2011The high levels of radiation braved by workers at the scene in Fukushima Daiichi appear to have reduced after the expansion of the workforce and announcements of infrastructure improvements to come.

ARMZ pulls back from acquisition

Located in: Industry Talk

17 March 2011

The $1.2 billion acquisition of emerging uranium mining company Mantra Resources by Russia's AtomRedMetzoloto (ARMZ) is in doubt following the serious events at the Fukushima nuclear power plants in Japan. ARMZ has notified Australia-based Mantra that it believes the Japanese incidents are likely to have a detrimental effect on Mantra's business. As a result, it says, it considers that the condition relating to a "material adverse change" in the 15 December implementation agreement for the deal is not capable of satisfaction. ARMZ says it intends to continue discussions with Mantra to see if the transaction can still go ahead by an alternative approach. Mantra has a portfolio of projects in southern Africa, including the Mkuju River project in southern Tanzania which has estimated mineral resources (measured, indicated and inferred) of 101.4 million pounds U3O8 (39,000 tU).

Attempts to refill fuel ponds

Located in: Regulation and Safety

17 March 2011

Fukushima Daiichi 4A major struggle took place today to maintain cooling of used nuclear fuel at Fukushima Daiichi 3 and 4. Helicopters made water drops and large fire trucks showered the buildings. Initial indications are that the effort was successful.

Korea sends boric acid supplies

Located in: Industry Talk

16 March 2011

The South Korean government said on 16 March that it is sending boric acid supplies to Japan to use in efforts to stabilise stricken nuclear reactors. Boron is an efficient neutron absorber that can be injected in to the core of a nuclear reactor to inhibit nuclear reactions. It has already been injected into some of the Fukushima reactors, but as it absorbs neutrons the boron is converted into materials that are less efficient at absorbing neutrons. According to Korea's Ministry of Knowledge Economy (MKE), Japan has asked for the supply of 52.6 tonnes of boric acid, an amount Korea will supply in its entirety from its current domestic reserves of about 309 tonnes.


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