Improved CANDU-core homogenization and benchmark models

为了使CANDU反应堆继续成为安大略省能源供应的重要贡献者，它们必须满足日益增长的经济和安全需求。特别是，需要越来越精确和详细的模拟模型来对现有和未来的CANDU反应堆进行安全分析。这项工作的总体目标是双重的：开发一种新的、更准确的方法，通过使用先进的均质方法来计算核反应堆中的中子功率分布，并开发详细的candu特定基准问题来测试新开发的方法，以及加拿大核工业中目前使用的其他方法和代码。

For CANDU reactors to continue to be an important contributor to the Ontario energy supply they have to satisfy ever increasing economic and safety demands. In particular, increasingly accurate and detailed simulation models are required for the safety analysis of existing, as well as future, CANDU reactors. The broad objective of this work is twofold: To develop a new, more accurate, method for calculating the neutron power distribution in a nuclear reactor by using advanced homogenization methods and to develop detailed CANDU-specific benchmark problems to test the newly-developed method, as well as other methods and codes in current use in the Canadian nuclear industry.