• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Analysis of Oxides on a Steam Generator Tube and Clean-Up Circuit Pipe from Loviisa 2 and the Impact on Assessment of Cobalt Sources
【24h】

Analysis of Oxides on a Steam Generator Tube and Clean-Up Circuit Pipe from Loviisa 2 and the Impact on Assessment of Cobalt Sources

机译：Loviisa 2蒸汽发生器管和清理回路管道上的氧化物分析及对钴源的评估

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Results from examination of the oxide on AISI 321 stainless steel steam generator tube and clean-up circuit pipe from the Soviet designed VVER 440 Loviisa 2 PWR in Finland are presented. The oxide on the specimens has been examined by a variety of techniques including alpha and gamma spectrometry, scanning electron microscopy with X-ray analysis, metallography, electron probe microanalysis, X-ray diffraction and wet chemical analysis. The oxide weight and concentrations of the major elements in the oxide, i.e. iron, chromium and nickel are similar to those on Westinghouse PWR specimens. The cobalt concentrations, however, are markedly different; there is no cobalt enrichment in the Loviisa 2 specimens, whereas Westinghouse PWR specimens show enrichment factors in the range 4-30. The concentrations of /sup 60/Co and /sup 54/Mn are also much lower on the Loviisa 2 specimens. The consequences of these results for the assessment of cobalt sources in a Westinghouse PWR are discussed. (ERA citation 13:011420)

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号