Fukushima released 13,000,000,000 times more neutrons than initially estimated — “Obvious implication for human health” — Gov’t: “Neutron radiation is the most severe and dangerous radiation” known to mankind; Can travel great distances

Scientists from Tokyo Institute of Technology, Univ. of California San Diego & Kyushu Univ., made available Oct 16, 2014 (emphasis added):

• We estimated a lower limit of 5.2 × 10²¹ slow neutrons m^–2 sec^–1 [m^–2 sec^–1 = per sq. meter per second] were emitted from the nuclear fuel rods to the sea water injected in the reactors
• Priyadarshi et al. (2011) have estimated a release amount of 4 × 10¹¹ slow neutrons m^–2. The large difference with our estimation [13,000,000,000 times higher] comes from the intrinsic limit of the box model study by Priyadarshi et al.
• Our model directly estimates the amount of material released from the reactor core

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Priyadarshi et al.: Evidence of neutron leakage at the Fukushima nuclear plant… Despite the obvious implication for human health… there are no quantitative estimates of the neutron flux leakage… [T]ons of seawater were used as a coolant… A consequence is that salts and minerals present in seawater become radioactive by reaction with thermal neutrons… We calculated the total number of neutrons that leaked from the reactor core [and] estimate that a total of 4 × 10¹¹ neutrons per m² were released before March 20.

Full article: Fukushima released 13,000,000,000 times more neutrons than initially estimated — “Obvious implication for human health” — Gov’t: “Neutron radiation is the most severe and dangerous radiation” known to mankind; Can travel great distances (Energy News)