衰变产物
在原子核物理學中,衰變產物(也稱至子同位素)是一個元素經過輻射衰變後剩下來的核素。輻射衰變通常涉及很多過程(衰變鏈)。例如,鈾238(U-238)衰變至釷234(Th-234),釷234(Th-234)再衰變成鏷234(Pa-234),而鏷234(Pa-234)再衰變成…,再衰變成鉛206(Pb-206)(穩定):
在這例子中,
- 釷234,鏷234m,…,鉛206是鈾238的衰變產物;
- 釷234是鈾238的至子同位素;
- 鏷234m (234 metastable)是鈾238的[至孫同位素][?]。
These might also be referred to as the daughter products of U-238.[1]
參考資料编辑
- ^ Glossary of Volume 7 (页面存档备份,存于互联网档案馆) (Depleted Uranium — authors: Naomi H. Harley, Ernest C. Foulkes, Lee H. Hilborne, Arlene Hudson, and C. Ross Anthony) of A review of the scientific literature as it pertains to gulf war illnesses.