John von Neumann, Otto Frisch, Alan Ayers, James Tuck, Robert Christy, Rudolph Peierls, etc.
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Did B-29 shield the A-bomb from the environmental neutron radiation above 100 MeV?
@jackiemopsy @TweetTw88036790
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This is because the environmental neutron radiation cannot be completely stopped by shielding.
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I am not sure what you are implying the importance of this is?
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Even 16.6㎏ of natural uranium in the building goes critical after being hit by the environmental neutron radiation. How is HEU?
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I assume you are referring to criticality accident of 1999. This was 18.8% enriched uranium, in water.
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In 1999 Japan's nuclear accident occurred in a production process of "MOX fuel made from Pu & NU or DU" for FBR Joyo.
@wellersteinpic.twitter.com/m7FcSBDCrV
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What I have read states that accident involved U fuel being prepared for the fast breeder, not MOX: http://world-nuclear.org/information-library/safety-and-security/safety-of-plants/tokaimura-criticality-accident.aspx …
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"workers were preparing a small batch of fuel for the JOYO", weren't they? JOYO had been FBR developed for using MOX fuel.
@wellersteinpic.twitter.com/0UowYzK2jl
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Reports say U, not MOX. U oxide was unusual for them to use, staff inexperience part of the accident. http://www.nrc.gov/reading-rm/doc-collections/commission/secys/2000/secy2000-0085/attachment1.pdf …
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