有效增殖因子的动态模拟计算

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Calculation of Effective Multiplication Factor with Dynamic Monte Carlo Method

Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan, 621900, China

摘要: 讨论了有效增殖因子(k_eff)的动态计算方法,建立了基于Geant4 toolkit平台的k_eff蒙特卡罗（MC）动态计算模型。分别采用动态方法和K静态方法计算了GodivaI反应堆基准实验和偏离临界较远系统时的k_eff。结果表明,K静态方法仅适用于靠近临界的系统,而动态方法无论在临界附近还是偏离临界较远均可得到正确的结果。
- 蒙特卡罗 /
- K静态方法 /
- 动态方法 /
- 有效增殖因子
Abstract: The dynamic method of effective multiplication factor k_eff calculation is discussed and the dynamic Monte Carlo code based on Geant4 toolkit is developed.The effective multiplication factor k_eff of GodivaI reactor（in benchmark） and systems which are far from critical has been calculated using this method. Results show that the K static method is only accurate for the system that is close to critical,and dynamic method can be used not only for the system that is close to critical but also for the system that is far from critical.
- Monte Carlo /
- K static method /
- Dynamic method /
- Effective multiplication factor