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。
A shielding design with multilayer combination has been introduced for on-line measurement of nuclear physics experiment with heavy ion accelerator.
计算并对比两个屏蔽环多个位置组合的电压分布，选取最优的位置组合。
The voltage distribution of several position combinations of the two grading rings is calculated and compared, and the best position combination is selected.
再建立模型，将转门的屏蔽设计优化问题转化为屏蔽材料的组合优化问题。
When re-building the model, the optimization problem of shielding design for revolving door is converted into a combined optimization problem of shielding materials.
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