衰變產物
外觀
![](http://upload.wikimedia.org/wikipedia/commons/thumb/c/c1/Thorium_decay_chain_from_lead-212_to_lead-208.svg/220px-Thorium_decay_chain_from_lead-212_to_lead-208.svg.png)
在原子核物理學中,衰變產物(也稱子核種、子同位素)是指一個放射性核種經過輻射衰變後形成的新核種。輻射衰變通常涉及一連串的衰變過程(稱衰變鏈)。例如,鈾-238(U-238)衰變成釷-234(Th-234),釷-234(Th-234)再衰變成鏷234(Pa-234),而鏷-234(Pa-234)再衰變成…,最終衰變成穩定的鉛-206(Pb-206):
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
[編輯]- ^ Glossary of Volume 7 (頁面存檔備份,存於互聯網檔案館) (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.
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