使用Kriging模型构建响应表面,以快速估计废核燃料中放射性核素活性
Tai-Ting Huang1, Tian-Tzuoh Lee1
1National Atomic Research Institute, No. 1000, Wenhua Rd., Jiaan Village, Longtan District, Taoyuan City, 32546, Taiwan.
概括
这项研究使用克里金模型来预测废核燃料中放射性核活动. 该方法通过评估冷却时间的风险,有助于安全有效地管理核废物.
科学领域:
- 核工程 核工程是指核工程.
- 辐射安全 辐射安全
- 地质科学是地球科学.
背景情况:
- 由于正在进行的放射性衰变,耗尽的核燃料需要长期管理.
- 监测放射性同位素活动对于评估潜在的生物圈风险至关重要.
- 目前评估活动的方法可能会耗费大量时间.
研究的目的:
- 开发一种间接方法,快速评估废核燃料中放射性核素活性.
- 建立一个Kriging模型,用于构建核活动的响应表面.
- 为公用事业提供一个工具,以安全有效地管理核废物.
主要方法:
- 利用了台湾金山核电站第一单元的数据.
- 根据初始-235缩,总燃烧量和特定功率,选择了1855个废燃料组件.
- 采用Kriging建模来创建响应表面,以预测使用SCALE 6.2分析的冷却时间内的核素活性.
主要成果:
- 开发了一个最佳的Kriging模型,考虑了特定功率,初始-235缩,总燃烧量和冷却时间.
- 通过使用来自山和城发电厂的废核燃料数据验证了该模型.
- 证明响应表面准确地预测了与冷却时间的核素活性变化.
结论:
- 克里金模型提供了一种可靠和有效的方法来评估废核燃料活动.
- 这种方法可以帮助公用事业公司在核废物管理方面做出明智的决定.
- 该研究强调了间接评估方法在辐射安全方面的潜力.
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