[ RadSafe ] Fukushima released 13, 000, 000, 000 times more neutrons than initially estimated -- "Obvious implication for human health"
rwhelbig at gmail.com
Thu Jan 15 06:07:47 CST 2015
is how to contact her - I have sent her a query offering the extensive
commentary that Jaro triggered in the Facebook Nukes group.
I am looking for way to contact senior personnel at the Japanese
university - I also wonder if this journal is one of those on Jeff
Beall's list since the science is clearly not that solid. Thanks for
link to the paper.
On Wed, Jan 14, 2015 at 5:06 PM, Mattias Lantz
<Mattias.Lantz at physics.uu.se> wrote:
> 5.2*10^21 slow neutrons per square metre and second is the same as 5.2*10^17
> slow neutrons per square centimetre.
> A light water reactor running at full power has a maximum neutron flux up to
> 10^13 slow neutrons per square centimetre, maybe up to 10^ 14.
> Quite fascinating to have a reactor where the neutron flux increases by a
> factor 5000-50 000 when being shut down. To postulate that there may be a
> critical configuration in the molted core is ok, but it would not lead to a
> neutron flux even near the flux at full power, and certainly not anything
> above it.
> I wonder what they were smoking when they did the calculations, it'd better
> be good.
> Here is their article, by the way, enjoy!
> Best wishes,
> Mattias Lantz
> On 01/14/2015 02:56 PM, Roger Helbig wrote:
>> Is there really any obvious implication for human health? Thanks.
>> Roger Helbig
>> ---------- Forwarded message ----------
>> Fukushima released 13,000,000,000 times more neutrons than initially
>> estimated -- "Obvious implication for human health"
>> by dunrenard
>> 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
>> The estimated... number of neutron represent a lower limit of the amount
>> of radiation emitted from the nuclear reactors... These values can be
>> used as a proxy to the total amount of radiation emitted since the
>> melt down
>> [The authors] express their gratitude to... the Japanese Ministry of
>> Environment...Ministry of Education, Culture, Sports, and Technology
>> (MEXT)... [and] the Cabinet Office
>> Source: Scientists from Tokyo Institute of Technology, U. of
>> California San Diego & Kyushu U., made available Oct 16, 2014
>> Evidence of neutron leakage at the Fukushima nuclear plant... Despite
>> the obvious implication for human health and the surrounding ecology,
>> there are no quantitative estimates of the neutron flux leakage... Heat
>> must be removed by cooling the system to prevent... meltdown, which
>> results in injection of neutrons and other fission products into the
>> atmosphere... [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.
>> Source: Priyadarshi et al.:
>> Slow Neutrons: "In water-cooled reactors like the ones at Fukushima,
>> the right combination of slow neutrons and enriched fuel leads to a
>> self-sustaining process... [Water] acts as a so-called moderator,
>> slowing down the neutrons and keeping the reaction going."
>> Health effects of neutron radiation:
>> Wikipedia: [Neutron] radiation is considered to be the most severe and
>> dangerous radiation to the whole body when it is exposed to external
>> radiation sources [and] roughly ten times more effective at causing
>> biological damage compared to gamma or beta
>> Dr. Robert Gale, MD (In 2011 Gale was called to Japan to deal with
>> medical consequences of the Fukushima disaster): All three types of
>> particles... can harm humans. Neutrons are the most dangerous because
>> they are very energetic, can penetrate deeply, and deposit large
>> amounts of energy into tissues.
>> US Nuclear Regulatory Commission: Neutrons... have an exceptional
>> ability to penetrate other material... neutrons are the only [type of
>> ionizing radiation] that can make objects radioactive... neutrons can
>> travel great distances in air.
>> Dept. of Health & Human Services: Neutrons... are significantly more
>> potent carcinogens [and] induces... chromosomal aberrations, mutations,
>> and DNA damage... more efficiently
>> Source: Enenews
>> dunrenard | January 14, 2015 at 2:28 am | Tags: Fukushima Daiichi |
>> Categories: Japan | URL: http://wp.me/phgse-iFo
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> Mattias Lantz - Researcher
> ??? ?????
> Department of Physics and Astronomy
> Division of Applied Nuclear Physics
> Uppsala University, Box 516
> SE - 751 20, Uppsala, Sweden
> phone: +46-(0)18-471-3754
> cell: +46-(0)730-454-384
> fax: +46-(0)18-471-5999
> email: mattias.lantz at physics.uu.se
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