[ RadSafe ] Claim - Plutonium-241 from Fukushima nearly 70, 000 times more than atomic bomb fallout in Japan.
Mattias.Lantz at physics.uu.se
Mon Mar 30 07:47:14 CDT 2015
The enclosed table in the articles has been manipulated.
Here is the full presentation by Shinonaga:
There is still something weird with the Fuk/Fall ratios, because the
241/239 ratios, the given masses, and the deduced activities do not match.
For the record, there should be a larger fraction of Pu-240 in released
reactor fuel than from a bomb, both due to buildup in the reactor, and
the fact that bomb material from the early 1960's has gone through about
four half lives with respect to Pu-240.
But the numbers in the table do not make sense, some information is missing.
The presentation does not say anything about where the sample was taken,
but the purpose is to show the principle of the measurement, not to
reveal any sensational results about contamination.
Mattias Lantz - Researcher
Department of Physics and Astronomy
Division of Applied Nuclear Physics
Uppsala University, Box 516
SE - 751 20, Uppsala, Sweden
email: mattias.lantz at physics.uu.se
On 03/30/2015 02:10 PM, Roger Helbig wrote:
> Global Research has no credibility. Does this claim have any? They
> are also using legitimate ocean modelling study of Cs-137 distribution
> to claim massive Plutonium spill spreading through the oceans.
> The alleged "reporter" Edmondo Burr" appears to be made up name -
> perhaps not even a real person - a quick Google search shows that he
> has been very prolific poster on a number of not-much-related
> Roger Helbig
> Plutonium-241 from Fukushima nearly 70,000 times more than atomic bomb
> fallout in Japan.
> by Christina MacPherson
> Fukushima: Uranium and Plutonium Contamination of Large Areas of
> Oceans, Ground-water, Soils.By Edmondo Burr Global Research, March 29,
> 2015 Your News Wire Scientists have raised concern over the rate of
> radioactive contamination of the Pacific, due to the Fukushima nuclear
> Expert : Plutonium-241 from Fukushima nearly 70,000 times more than
> atomic bomb fallout in Japan.
> Officials : Molten fuel now 'particle-like', contains 'special'
> nuclear materials.
> Gov't Labs : Large areas of oceans contaminated by plutonium from
> events such as Fukushima; Build-up in biosphere expected; Considerable
> hazard to humans.
> Energy News statement :
> Detection of long-lived plutonium isotopes in environmental samples by
> Accelerator Mass Spectrometry (AMS) -- Plutonium isotopes 239Pu, 240Pu
> and 242Pu are anthropogenic radionuclides emitted into the environment
> by nuclear activities. Pu is accumulated in the human body and hence,
> poses a considerable hazard to human health. Due to the long
> half-lives, these isotopes are present in the biosphere on large time
> scales and a build-up can be expected. Therefore it is important to
> study the contamination pathway of Pu into the drinking water... a
> method to detect long-lived Pu isotopes by Accelerator Mass
> Spectrometry (AMS) is being developed. AMS requires only few
> milligrams of sample material... Consequently, more samples from
> different locations can be taken which is essential when searching for
> locally increased Pu concentrations as in the Pacific Ocean after the
> Fukushima accident... Samples from different locations in the Pacific
> Ocean and from the snow-hydrosphere are planned...
> Statement by: Taeko Shinonaga, head of Radioanalytical Laboratory at
> Helmholtz Zentrum Munchen (research institution founded jointly by
> Germany's Federal Ministry of Education & Research and Bavaria's
> Finance Ministry), scientists from Technische Universitat Munchen
> (Germany), Verhandlungen der Deutschen Physikalischen Gesellschaft
> 2013 meeting (emphasis added)
> Presentation by: Taeko Shinonaga, head of Helmholtz radioanalytical
> lab (pdf), Nov 2014: Comparison of activity between [nuclear bomb
> testing] fallout Pu particle and Fukushima origin Pu
> Christina MacPherson | March 30, 2015 at 5:02 am | Categories:
> Fukushima 2015, oceans | URL: http://wp.me/phgse-jan
> You are currently subscribed to the RadSafe mailing list
> Before posting a message to RadSafe be sure to have read and understood the RadSafe rules. These can be found at: http://health.phys.iit.edu/radsaferules.html
> For information on how to subscribe or unsubscribe and other settings visit: http://health.phys.iit.edu
More information about the RadSafe