source of secondary radiation

例句：

1. 1.The research team found a new source of energy that could potentially solve the problem.
   研究团队发现了一种新的能源来源，可能潜在地解决这个问题。
2. 2.The scientist used a special technique to isolate the source of the radiation.
   科学家使用一种特殊的技术来隔离辐射的来源。
3. 3. The source of the radiation was traced back to a faulty power grid.
   辐射的来源被追溯到一个有故障的电网。