Radiation shield and shielding material with excellent heat-transferring property
AssigneesSumitomo Heavy Industries, Ltd., Nisshin Steel Co., Ltd.
InventorsEiki Takeshima, Kiyoshi Takatsu, Norio Asano, Masahiro Hozumi
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Abstract
This invention relates to a shielding material used as a radiation shield of a container containing radioactive wastes. A radiation shield with an excellent heat-transferring property is fabricated from composite particles (A) obtained by coating core particles (a) of radiation-shielding property with a metal (b) of high thermal conductivity. Composite particles are formed into a certain shape of radiation shield by hot-press forming or other forming or packed into the internal space of radioactive waste container or the shield container cavity to compose a radiation shield.
Claims6
A radiation-shielding material comprising composite particles obtained by coating various kinds of minute particles of about 20.mu.m to about 100 .mu.m in diameter and having radiation-shielding property with the various kinds of metals of high thermal conductivity.
Dependencies are inferred from the claim text.