使用不同的反应器物理模型和CADIS加速MCNP,以产生1MeV等效流来应对中子损伤
Joe A Johnson1, Glenn E Sjoden2, Taylor S Kimball3
1Nuclear Engineering Program housed in the Civil and Environmental Engineering Department at the University of Utah, on leave from the Northrop Grumman Corporation.
概括
混合模拟技术加速了辐射硬度测试. 使用评估核数据文件库的新方法创建损伤指标,加速中子位移损伤 (NDD) 分析的10-100倍.
科学领域:
- 核工程 核工程是指核工程.
- 材料科学 材料科学 材料科学
- 计算物理 计算物理
背景情况:
- 辐射硬度保证测试对于电子元件至关重要.
- 中子位移损伤 (NDD) 测试需要准确地描述中子源.
- 当前的测试前分析方法可能是计算密集的.
研究的目的:
- 开发和探索混合模拟技术,以加快辐射硬度保证测试中的测试前分析.
- 创建一种方法来生成各种材料的损害指标,使用核数据文件 (ENDF) 库.
- 为了加速蒙特卡洛模拟进行NDD测试.
主要方法:
- 开发混合模拟技术,结合确定性和蒙特卡洛方法.
- 使用ENDF库和美国材料测试协会 (ASTM) 标准实践E722.2.使用损坏指标的创建.
- 利用简单的单元细胞模型和犹他大学TRIGA反应堆 (UUTR) 的完整核心模型.
- 将关键性固有值计算转换为固定源问题.
- 应用一致的辅助驱动重要性采样 (CADIS) 减差技术.
主要成果:
- 单元电池模型为1 MeV等价流提供了合理的估计.
- 蒙特卡洛模拟实现了10到100倍的计算速度,并且具有出色的统计数据.
- 开发的方法允许对NDD测试进行高效的参数研究.
结论:
- 混合模拟技术显著加快了用于辐射硬度保证的测试前分析.
- 开发的损害计量方法和模拟加速为高效的NDD测试铺平了道路.
- 犹他大学的TRIGA反应堆 (UUTR) 可以有效地用于NDD测试中的高效参数研究.
关键词:
在MCPN*上,你会看到MCPN.潘特兰 (Pentran) 是一个古老的城市.触发器是一个触发器.缺陷 缺陷 缺陷 缺陷 缺陷移位损伤 移位损伤硬度保证 保证 的保证.中子中子中子中子.核反应堆中的核反应堆.颗粒运输 颗粒运输辐射效应是辐射的影响.辐射硬度 辐射硬度半导体 半导体 半导体是一种.模拟模拟是指一个模拟模拟.更多相关视频
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