Self-Defense Force Helicopter to Fukushima Daiichi Nuclear Power Plant for Water Drop
According to the previous NHK news, the SDF helicopter flew to Fukushima Daiichi Nuclear Power Plant for water injection before 16 o'clock.
Details are as below.
2011/03/16 16: 17
NHK News prepared for water injection by helicopter 3 Unit 3 SDF
Following this, the CH47 helicopter of the 1st helicopter team of the Ground Self Defense Force deployed in the Kasumi-Residence in Sendai City began preparations. In the Self Defense Force, it is planned to suspend a container containing a large amount of water from the helicopter and to drop water while passing through the sky of Unit 3 many times. Currently, the SDF measures another dose of radiation from the helicopter above the Fukushima Daiichi Nuclear Power Station and decides to eventually decide whether to start work after confirming the result .
2011/03/16 16: 20
Asahi.com (Asahi Shimbun): near the main gate of Fukushima Daiichi Nuclear Power Plant, Neutron Detection on 15th - Society
On the 16th, TEPCO revealed that a neutron beam was detected on the 15th near the main gate of Fukushima Daiichi Nuclear Power Station. According to the monitoring car measurement, it detected 0.02 microsievert and 0.01 microsiever neutrons per hour at 1:30 am and 40 minutes on the 15th, respectively.
The neutron beam was also detected on 14th day after the explosion of hydrogen explosion at Unit 3 of the nuclear power plant, and it was at a level that can not be detected again.
2011/03/16 16: 32
Science: YOMIURI ONLINE (Yomiuri Shimbun) Science: Unit 4 firefighting trump card, big helicopter with boric acid loading preparation: science: YOMIURI ONLINE
On the other hand, TEPCO asked the SDF and the US military for fire fighting in the fire that occurred on the 15th morning. Actually, although no water discharge activity was done, the US military made fire engines wait near the nuclear power plant, and the SDF also examined utilization of the helicopter.
Normally, it is difficult to spray water from the sky. It is because it is difficult to steer in protected clothes while high concentrations of radioactivity is leaking and it is possible that the maneuver becomes unstable if water is thrown and gas is generated . For this reason, the government suspended the implementation of the spraying of cooling water from the sky by the Ground Self Defense Force helicopter.
However, regarding the Unit 3, white smoke rose on the 16th, Kitazawa Defense Minister mentioned the possibility of fire fighting in the helicopter. Unlike Unit 4, the upper part of the building is open, according to executives of the Ministry of Defense, about four helicopters are currently preparing.
TEPCO also requests the Self Defense Force to inject boric acid powder that suppresses nuclear fission reaction into the storage pool of nuclear fuel rods in the building from the top of Unit 4.
There is a crack in the upper part of the building of Unit 4, but no clear hole has been confirmed. For this reason TEPCO suggested placing 50 to 60 tons of boric acid powder in the upper part of the building and allowing it to penetrate from the crack into the interior. In the SDF, as soon as the order comes out, we are studying ways to place boric acid on the top of the building with a large helicopter.
2011/03/16 17: 07
It was past six, and the Emperor issued a statement on the earthquake.
I am praying for "the safety of as many people as possible" about the affliction of the earthquake, it is a situation where it is unpredictable also about the nuclear power plant and I hope that further deterioration of the situation will be avoided I commented that it is.
2011/03/16 17: 09
Add NHK image
2011/03/16 17: 36
The full text of the Emperor's video message is as follows.
Message by the Emperor, East Japan great earthquake: Society: YOMIURI ONLINE (Yomiuri Shimbun)
2011/03/16 18: 02
At the University of Tokyo graduate school todayKosako KozosoAppoint Mr. Cabinet Office as a participant. Mr. Kosako has insight on radiation safety science and said he would advise the Prime Minister about the accident this time.
2011/03/16 18: 06
【Radioactivity Leakage】 Helicopter helicopters start cooling water injection to Fukushima No. 1 nuclear power plant No. 3 - MSN Sankei News
On the evening of the 16th, the Ministry of Defense began using the GSDF helicopter helicopter helicopter CH47 for Fukushima Daiichi nuclear power plant No. 3 to drop the reactor water cooling seawater from the sky.
Under the situation that the ceiling of the building covering the nuclear reactor is collapsed due to a hydrogen explosion in Unit 3, the Ministry of Defense sees cooling water from the sky as possible.
2011/03/16 18: 10
According to NHK news, the radiation dose in the sky greatly exceeded the prescribed value, he said he abandoned the water injection.
2011/03/16 18: 15
Abandoned SDF helicopter water injection NHK News
2011/03/16 19: 50
Tell the groundwater to dispatch to the riot police NHK News
In response to this request, the National Police Agency decided to take water from the ground using a special vehicle that can be drained with powerful water pressure, and to add water to Unit 4, at the request of the government's headquarters, I instructed the riot police to take over. It is a riot police officer of the Metropolitan Police Department who is working to measure the radiation dose after borrowing protective clothes from the SDF and take a safe distance and start washing water on the evening of 16th as soon as possible.
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