| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a flammability improving composition for sufficiently exerting radiation energy within a range of radiation amount permitted in terms of safety. Ž<P>SOLUTION: The flammability improving composition has improved active effects by adding metal powder of a copper group classified by a periodic table of elements to ore fine powder of natural radionuclide at a weight ratio of 5-20% or providing such a metal layer for applying catalyst effects to gas or liquid influenced by α, β, γ rays emitted from radium. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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