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在RMC SLOWPOKE-2池中流量分布的表征
D A Huston1, P Samuleev1, F Kelly1
1Royal Military College of Canada, Kingston, Ontario, Canada.
概括
在SLOWPOKE-2反应堆中,使用激活测量和MCNP模拟绘制了中子流分布图. 结果显示热中子流量很一致,验证了用于反应堆分析的模拟方法.
科学领域:
- 核工程 核工程是指核工程.
- 反应堆物理 反应堆物理
- 中子运输理论 中子运输理论
背景情况:
- 准确的中子流量表征对于反应堆的运行和安全至关重要.
- 辐射监测中心 (RMC) 的SLOWPOKE-2反应堆需要各种应用的详细中子流量数据.
- 以前的表征方法可能在准确性或范围上有局限性.
研究的目的:
- 为了描述SLOWPOKE-2反应堆池内的中子流量分布.
- 为了验证MCNP模拟结果与实验中子激活测量对比.
- 评估热和高热中子流量估计的准确性.
主要方法:
- 使用 (Co) 和金 (Au) 样本进行中子激活分析.
- (Cd) 屏蔽 黄金 (Au) 测量以区分热和热流.
- 蒙特卡罗N粒子 (MCNP) 运输模拟.
- 计算威斯科特等效热中子流量值.
主要成果:
- 实验和模拟的热中子流量值在不同的反应器设置中显示出很好的一致性.
- MCNP模拟提供了一种可靠的方法来预测热中子流量.
- 在确定更高能量的中子流中观察到更高的不确定性.
结论:
- 该研究成功验证了MCNP模拟与SLOWPOKE-2反应堆中热中子流量实验数据的验证.
- 在这种反应堆类型中,MCNP是用于中子流量测绘的合适工具.
- 需要进一步调查,以减少高能中子流量表征的不确定性.
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