电子加速器房扩容技改的辐射屏蔽设计

Radiation Shielding Re design of An Electron Accelerator Building for Capacity Expansion and Technology Upgrading

介绍了电子加速器房扩容技改的辐射屏蔽设计、计算和验证结果。技改方案包括：加速器升级（μＡ级升至ｍＡ级）；增设耳房式迷宫以安装回转式工件传送装置；在耳房内增设局部屏蔽砼块以增强屏蔽能力。在加速器运行条件下现场环境辐射水平实测结果与计算结果基本相符。

Radiation shielding re design,calculation and verification for the capacity expansion and technology upgrading of an electron accelerator building were conducted. Technological upgrading program involves accelerator up gradation (from μA level to mA level),installing sideroom as a maze for mounting rotation type conveyer, and adding the built in local shielding concrete block in the maze to intensify shielding ability. Under operational conditions of the re designed accelerator, the resulting environmental radiation level coincides with the calculated results.