“堆芯燃料元件破损在线探测和堆芯损伤评估技术研发”是核能开发科研项目“反应堆关键设备维护和检测技术研究”课题之一,其研究内容包括核电厂堆芯燃料元件破损在线探测系统研发、堆芯损伤评价系统研发以及实现这两个系统的集成。燃料元件破损在线探测系统(FDDS)自2011年9月安放在秦山第二核电厂1号机组开始实验考验,截止2012年12月底, “R & D of on-line detection of core fuel element damage and evaluation of core damage ” is one of the topics of research and development of nuclear energy research project “research on maintenance and detection of key equipment of nuclear reactor ”. Its research contents include nuclear fuel element core reactor damage Online exploration system development, core damage evaluation system development and realization of these two systems integration. Fuel Element Breakage On-line Detection System (FDDS) was put into operation at Unit 1 of Qinshan No.2 nuclear power plant since September 2011 to begin experimental tests. By the end of December 2012,