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Received: 16 October 2016
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[1] 张丹枫、赵兰才.辐射防护技术与管理[M].广西民族出版社.2003,391. [2] NCRP.Structural Shielding Design and Evaluation for Megavoltage X-and Gamma-Ray Radiotherapy Facilities[R]. NCRP report No.151. 2005,12:34-35. [3] IAEA.Radiation Protection in the Design of Radiotherapy Facilities[R]. Safety Report Series No.47. 2006,28. |
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