Possible existence of neutron ray in reactor.

On the monthly report of December, Tepco stated they measured 1.7E-07 Bq/cm3 of Sb-125  from the sample taken AM9:29~9:59 ,12/6/2011

It was from the air above the sea, 2~3km offshore.

Sb-125 is made when Sn, a material of zircaloy fuel cladding, is hit by neutron ray from the fuel.

It is not known where the fuel is but still there is a possibility that it emits neutron ray actively.

Sb-125 is constantly reported on the past monthly reports too.




  1. if it is there in every monthly report, it is there, there was this attempt to remove such isotopes from the list, exactly because people can draw conclusions from them.
    honestly i suppose you will find statistically less physicians in jp these days. the wind can’t allways been east.

    they don’t know where the fuel went? well.. you can tell from the pictures where it went. delving into the material you can dig up the contents of each reactor, (rather similar amounts of kernel alltho most had been ‘customised to overdrive’ by application of extra and more verocious (pu) elements.

    since it is known that the fuel pools are gone or damaged on several reactors and the contents of the reactors likewise, but in somewhat different relations have ‘repositioned’ it is actually moreless calculable what amounts are, and where. however, for example to the fuel rods from fuel pools as they got thrown all over the place, evaporated, burned etc., tepco gave no indications. alltho whole fuel rods have been visible in some photographs, outside the buildings, that is probably an indication the far majority of it indeed, reacted, evaporised, and basically, got out. that would tell that either in the surroundings of the plant very high amounts and concentrations of remnants are producing the Sn. or it is a product, and that is obviously far more probable, of for example the nr4 fuel pool and most probably the 4 most damaged reactors.

    now, perhaps what there is to hide is the radiation of another of the fuel pools of wich the photos did not reveal wat happens, but, to me it seems it is probably the product of several of the destroyed kernels.
    neutron beams are bound to occur also in a
    non-neutronflux reactor.

    that it means those nukeRs are still spreading high quantitys of dangerous pollutants should come as no surprise considering the rather ridiculous pride taken in the facility of the exhausts to ‘disperse the radiocative products’. that tells absolutely nothing except (wich went confirmed in the same articles etc.) the working conditions are still deteriorating.

  2. Antimony-125 has a half-life of over 2 years so detecting it isn’t too surporsing. It may have been emitted during March 11-15 meltdowns.

    More troubling is ongoing detectin of I-131

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About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.


January 2012