Tepco blames ‘spontaneous’ and ‘natural’ nuclear fission for radioactive xenon… What about the 14,000% increase in Krypton-85?

Published: November 3rd, 2011 at 12:05 am ET
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Tepco: Xenon At Fukushima Not Result Of “Critical” Nuclear Reaction, Wall Street Journal, November 2, 2011 at 11:13 pm ET:

“Tokyo Electric Power Co. (9501.TO) said Thursday the detection of radioactive xenon at its stricken Fukushima Daiichi power plant, indicating recent nuclear fission, was not the result of a sustained nuclear chain reaction known as a criticality, as feared, but a case of ‘spontaneous’ fission, Kyodo News reported.” [...]

“The utility known as Tepco has been analyzing the phenomenon” [...]

Xenon at Fukushima Isn’t From Critical Reaction, Tepco Says, Bloomberg, November 3 at 11:14 pm ET:

[...] “The discovery of xenon, announced yesterday, at the plant was caused by “natural” nuclear fission, Junichi Matsumoto, a general manager at the company known as Tepco, said today at a press briefing in Tokyo.” [...]

AS EX-SKF noted, the xenon increase in recent days has been relatively minor.

Rather it is the 140-fold increase in Krypton-85 over the past day that needs to be addressed by Tepco and the Japan gov’t.

h/t Anonymous tip

Published: November 3rd, 2011 at 12:05 am ET
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30 comments

Related Posts

  1. Boric acid apparently not working to stop chain fission reactions because Xenon is still being detected — Tepco says this is reason why they claim ‘spontaneous’ fission, not sustained criticality November 3, 2011
  2. CNN: Tepco’s claim of ‘spontaneous’ fission is an “improbable phenomenon” says nuke professor — Strange that such a “rare” event was detected almost immediately after sampling began? November 4, 2011
  3. NHK: “Alarming Readings” — TEPCO asking Japan gov’t for help because a “different substance” may have been detected, in addition to xenon (VIDEO) November 2, 2011
  4. NYTimes: For first time Tepco admits “fuel deep inside 3 stricken plants probably continuing to experience bursts of fission” — Fission at Reactors 1 and 3 also? November 2, 2011
  5. NHK: Tepco told to find ways of measuring temperature at Reactor No. 2 and report by tomorrow — Still claimed no xenon detected February 14, 2012

30 comments to Tepco blames ‘spontaneous’ and ‘natural’ nuclear fission for radioactive xenon… What about the 14,000% increase in Krypton-85?

  • watcher watcher

    Spontaneous and natural. . . . . . . . sounds like spurious and placebo


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  • Cataclysmic Cataclysmic

    Darn..just when I thought it was banana bottles, now they go all spontaneous and natural on me..


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  • watcher watcher

    Like an Ostrich with its head in the sand. These people have their heads up their asses.


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  • watcher watcher

    How do they get to positions of authority? by keeping their heads up their asses while kissing some asses.


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  • Joviation

    Fire, don’t bother to be ready or aim. Get paid.


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  • dosdos dosdos

    “So go and put a banana in your ear….” All those potassium isotopes in bananas are natural and oh so spontaneous. Okay, no more fruit for the workers, it’s messing up the sensors.

    When is tens of millions of bequerels per cubic meter of xenon 131m relatively minor?


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  • Novamind

    This Explains it very nicely! No Need to Worry-Tepcos on top of it! I feel so much better now..


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  • Jebus Jebus

    To dispute this it’s as easy as lookin at wiki…

    Isotopes of xenon

    Relatively high concentrations of radioactive xenon isotopes are also found emanating from nuclear reactors due to the release of this fission gas from cracked fuel rods or fissioning of uranium in cooling water. The concentrations of these isotopes are still usually low compared to naturally occurring radioactive noble gases such as 222Rn.

    http://en.wikipedia.org/wiki/Isotopes_of_xenon

    OR

    Fission Fragment Example

    A common pair of fragments from uranium-235 fission is xenon and strontium:

    Highly radioactive, the xenon decays with a half-life of 14 seconds and finally produces the stable isotope cerium-140. Strontium-94 decays with a half-life of 75 seconds, finally producing the stable isotope zirconium-94. These fragments are not so dangerous as intermediate half-life fragments such as cesium-137.

    http://hyperphysics.phy-astr.gsu.edu/hbase/nucene/fisfrag.html


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  • Grampybone Grampybone

    All the releases are not shown when one happens TEPCO admits it 3 days after possible fission reactions could be far more severe than they are telling us at this moment. What happens when molten core pellets of mox eat into the seabed water table? More hydrogen build up? Massive concentrations of mini-mox fission reactions sounds like fun…Anyone play this situation out in sim city? An entire hemisphere of human life could have radioactive peppering paying you a visit in your next rain fall. The fail train at TEPCO marches on as they stuff their faces with sushi and Japanese rice.


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  • fireguyjeff fireguyjeff

    “Yeah….that’s the ticket!!! Natural fission!”

    I live in western Oregon.
    Just hours ago I was sharing with my younger brother how this Fuku experience seems like a very surreal dream that I will awake from and share as the most bizarre experience.
    Sadly, it is all too real.


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  • Cindy

    An article at the Daily Kos, says that Fukushima has released 42% more Radiation than Chernoble …

    http://www.dailykos.com/story/2011/11/02/1032622/-Fukushima:-Stage-Two?via=spotlight


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    • Cindy

      You guys really must read through it , there are tweets from the workers that talk about the shared spent fuel pool, things we’ve never heard ….


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    • anne anne

      That 46% more than Chernoby is off by at least 500 times based on old numbers. In addition, Chernobyl didn’t have as many hot particles due to the fact that they didn’t have MOX fuel then. From Fukushima there have been released 4,000 hot particles for each of the 7 billion people living on the earth. And the plutonium in MOX is very finely ground so it has gone into the jet stream and deposited around the whole earth. And this doesn’t even count the hot particles from all the recriticalities. And it probably doesn’t count all the nuclear weapons being stored there, and doesn’t count reactors #5 and #6 which undoubtedly have already melted through. And then there are the 4 reactors at Fukushima Daini which are also being decommissioned and are in as bad shape at reactor #r at Fukushima Daiichi. And then there are the reactors at Onagawa NPP and Tokai NPP. Talk about a nightmare that the Japanese are not owning up to. Because we can’t risk chaos on the stock market and other markets.


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      • anne anne

        And then I heard about the plan to get rid of the magnetosphere to let in all the sun’s radiation while the elite are bunkered down. The elite are probably completed overbred and pickled in radiation and have Alzheimer’s from using cell phones and other electromagnetic pollution. As lead pots were to the Romans, so electromagnetic pollution and nuclear radiation are to present day “civilization.”


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  • So I suppose they are injecting boronic acid acid for the shills and thrills.


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  • no more hope for Plan B. someone has to go in the cellar to tame or kill the beast.


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  • Grace Grace

    this is another way of saying ‘out of control’ – if they assign a natural cause, does this let them off the insurance hook?
    Wikipedia – natural fission: Oklo is the only known location for this in the world and consists of 16 sites at which self-sustaining nuclear fission reactions took place approximately 1.7 billion years ago.


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  • dosdos dosdos

    From CBC:
    http://www.cbc.ca/news/world/story/2011/11/03/japan-nuclear-plant-fission-tepco.html

    The utility [TEPCO] denied any new problem inside the Unit 2 reactor, citing no change in temperature or pressure. It said a recently installed more sensitive monitor detected xenon that was there all along.

    There all along? Since when did the half life of xenon isotopes get raised to eight months?


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    • Fall out man!

      >>>Since when did the half life of xenon isotopes get raised to eight months?

      In the topsy turvy world of Tepco Mathematics anything becomes possible! What’s a factor of a 1,000 between friends anyway ;-)

      But don’t worry, Tepco says this is all just “spontaneous” and “natural”… yeah, natural man! Nature’s good for you! So get it down ya son! That stuff’ll put hair on ya chest!!!!!


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  • Bleifrei Bleifrei

    boric acid ( neutron-eaters!)
    how much they need?
    it is not that much available


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  • Bleifrei Bleifrei

    for the Romans it was the Pb, which they precipitated(cut down).
    Pu, and his brothers for the Japanese and ……?


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  • It's All Lies craigtaylor994

    Oh so nuclear fission starts ‘Naturaly’no need to worry then!
    Might find some going on in my back garden!

    Nothing is ‘Natural’ in a power plant!

    And surely any ‘spontanious’ fission would be more of worry than if it was planned! Spontanious= Out of control..no?


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