A shielding design with multilayer combination has been introduced for on-line measurement of nuclear physics experiment with heavy ion accelerator.

本文主要介绍了重离子加速器核物理实验在线测量中为降低辐射本底而采用的多层组合屏蔽设计。

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Purpose to meet the government standard basic criterion GB18871-2002 for radiation protection and safety, and to optimize the design of the shielding protection of medical linear accelerator.

目的满足国家标准GB18871 - 2002电离辐射防护与辐射安全基本标准的同时，优化设计医用加速器室的辐射屏蔽防护。

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But the shut-down schedule also includes upgrades to all four of the LHC's detectors, the shielding of electronics, and even an overhaul of the ventilation system of the tunnel that houses the main accelerator ring.

BBC: LHC switches off for two-year break