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描述了回旋加速器高效磁屏蔽通道的模拟实验及双层屏蔽结构。实测通道的屏蔽效率在99%以上(质子10—30 MeV能区)。
Describes the simulation experiment of a cyclotron efficient magnetically shielded tunnel and a double-layer shield structure. The measured channel shielding efficiency of more than 99% (proton 10-30 MeV energy zone).