29 March, 2011

3.12. Fukushima nuclear plant disaster: Simulation of atmospheric dispersion of the radioactive plume




March 11th Earthquake and tsunami damaged the nuclear power plant at Fukushima,
where 4 of 6 nuclear reactors have been troubles, leaking the radioactive substances
to the air.

Institute de Radioprotection et de Sûreté Nucléaire(=IRSN) has published information
on its french website regarding the status of the nuclear reactors at the Fukushima Daiichi
nuclear plant, and the consequences of the crisis.
         http://www.irsn.fr/EN/news/Pages/201103_seism-in-japan.aspx
          http://www.irsn.fr/EN/news/Documents/irsn-simulation-dispersion-en.pdf
It includes :
1) Dispersion of radioactive releases in the air
        http://www.irsn.fr/FR/popup/Pages/animation_dispersion_rejets_19mars.aspx
2) Whole body doses likely to be received by a one-year old infant with no protection
     during the releases
       http://www.irsn.fr/FR/popup/Pages/animation_doses_corps_entiers_19mars.aspx
3) Doses to the thyroid likely to be received by a one-year old infant with no protection
     during the releases
      http://www.irsn.fr/FR/popup/Pages/animation_doses_corps_thyroide_19mars.aspx


Thank you, French IRSN

Keiji Hagiwara, MD
Kami-Ube Pediatric Clinic,
Ube 755-0097, Japan
keijihagiwara@gmail.com

28 March, 2011

3.11. Tohoku・Kantou Earthquake (M 9.0) and Tsunami

11th March, earthquake(M 9.0) and Tsunami attacked north-west Japan.
Tsumani swept the costal area of Tohoku and Kanto, where many fishing ports and 

town are there, were destroyed.


see the footage: NHK; http://www3.nhk.or.jp/news/jishin0311/
                              BBC;  http://www.bbc.co.uk/news/world-asia-pacific-12722187

Death Toll = 10,804 (confirmed. 28 March)
Missing     = 18,000

In addition, Earthquake and tsunami damaged the nuclear power plant at Fukushima,
where 4 of 6 nuclear reactors have been troubles, leaking the radioactive substances
to the air. The evacuation zone, set by the government, was 20km.

Quake also damaged other electric power plants and resulted the power shortage of 

Greater Tokyo area. ( 60c/s 100v is the west half of Japan and the east half Japan is 
50c/s 100v. Fuji river is dividing border). There are few capacity of 60c/s to 50c/s 
conversion of currency.