原子能科学技术2011，Vol.45Issue(12)：1484-1488,5.
高温气冷堆控制棒硼燃耗特性分析
Analysis of Boron Depletion in HTR Control Rod
摘要
Abstract
The worth of control rod and its change along depletion are one of important features for reactor neutronics design. The control rods in pebble bed high-temperature gas-cooled reactor (HTR) were located in the hole of side graphite reflector. Its absorber was made up of annular B4C, which had special depletion rules. The depletion characteristics in each absorber sub-zone and the changes of the control rod worth were analyzed, based on both the MCNP coupling another depletion module and the detailed modeling control rod absorber region. According to the analysis, the boron in inner region of absorber is depleted only a little, although most of boron in outer region of absorber is depleted, because of the strong space self-shielding effects in control rod absorber. Therefore, the worth of control rod in the HTR decreases just a little at the end of reactor life time.关键词
球床式高温气冷堆/控制棒/控制棒价值/自屏效应Key words
pebble bed high-temperature gas-cooled reactor/control rod/worth of control rod/self-shielding effect分类
能源科技引用本文复制引用
赵晶,李富,刘志宏,石秀安..高温气冷堆控制棒硼燃耗特性分析[J].原子能科学技术,2011,45(12):1484-1488,5.基金项目
国家自然科学基金资助项目(10675071) （10675071）
