Invention Grant
- Patent Title: Radiation shielding sheet
- Patent Title (中): 辐射屏蔽片
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Application No.: US11816778Application Date: 2006-02-16
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Publication No.: US07923708B2Publication Date: 2011-04-12
- Inventor: Eiji Oyaizu
- Applicant: Eiji Oyaizu
- Applicant Address: JP Tokyo JP Yokohama-shi
- Assignee: Kabushiki Kaisha Toshiba,Toshiba Materials Co., Ltd.
- Current Assignee: Kabushiki Kaisha Toshiba,Toshiba Materials Co., Ltd.
- Current Assignee Address: JP Tokyo JP Yokohama-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2005-047199 20050223
- International Application: PCT/JP2006/302702 WO 20060216
- International Announcement: WO2006/090629 WO 20060831
- Main IPC: G21F5/00
- IPC: G21F5/00
Abstract:
A radiation shielding sheet formed by filling a shielding material into an organic polymer material. The shielding material is an oxide powder containing at least one element selected from the group consisting of lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), samarium (Sm), europium (Eu) and gadolinium (Gd). The oxide powder has an average grain size of 1 to 20 μm, and a volumetric ratio of the shielding material filled in the radiation shielding sheet is 40 to 80 vol. %.
Public/Granted literature
- US20090078891A1 RADIATION SHIELDING SHEET Public/Granted day:2009-03-26
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