Gollon P J, Casey W R
Health Phys. 1984 Jan;46(1):123-32. doi: 10.1097/00004032-198401000-00010.
ISABELLE is a high-intensity 400-GeV proton-storage ring under construction at Brookhaven National Laboratory (BNL). The radiation-protection problems encountered in its design are in many ways similar to those at high-energy fixed-target facilities: both the laboratory personnel nearby and the public several kilometers away must be appropriately protected from high-energy neutron and muon radiation. These radiations will result from the routine operation of the accelerators, as well as from unplanned and possibly large losses of the stored beam. The radiation exposures resulting from the loss of beam already in the accelerator could be more severe than those resulting from a full year's normal operation. The design goals (mrem/yr) which have been adopted for different populations, exposure scenarios and radiation sources are outlined. We also describe the methods (hardware, shielding, access control) which will be used to achieve these goals.
伊莎贝尔（ISABELLE）是布鲁克海文国家实验室（BNL）正在建造的一个高强度400GeV质子储存环。其设计中遇到的辐射防护问题在很多方面与高能固定靶设施的问题相似：附近的实验室人员和几公里外的公众都必须得到适当保护，免受高能中子和μ子辐射。这些辐射将来自加速器的常规运行，以及储存束流的意外且可能大量损失。加速器中已有束流损失所导致的辐射暴露可能比全年正常运行所导致的辐射暴露更严重。文中概述了针对不同人群、暴露场景和辐射源所采用的设计目标（毫雷姆/年）。我们还描述了用于实现这些目标的方法（硬件、屏蔽、出入控制）。
