alpha decay

1. Alpha particles are these helium nuclei, and they are the result of radioactive decay.
   阿尔法粒子是氦核，它们是放射性衰变的产物。
2. Half-lives are characteristic properties of the various unstable atomic nuclei and the particular way in which they decay. Alpha decay and Beta decay are generally slower processes than gamma decay.
   半衰期是各种不稳定原子核的特性，是它们衰变的特殊方式。α衰变和β衰变一般比γ衰变为慢。
3. Alpha particles are positively charged helium nuclei obtained from natural radioactive decay.
   α粒子是从天然放射性蜕变得到的带正电的氦核。
4. Radioactive series: Any of four sets of unstable heavy atomic nuclei that undergo a series of alpha decay and Beta decay until a stable nucleus is achieved.
   放射性系：四组不稳定的重原子核，通过一系列α衰变和β衰变直至达到稳定的核为止。
5. The radiation of alpha particles during radioactive decay.
   在放射性衰变的过程中放出α粒子的辐射。
6. The theory of alpha decay utilizes this model.
   α衰变理论用了这种模型。
7. The calculated alpha decay energies are in good agreement with experimental data.
   理论的α衰变能与实验数据符合。
8. Theoretical Study on the Alpha Decay Half-Life of Superheavy Elements with the Effective Liquid Drop Model
   利用有效液滴模型研究超重元素α衰变半衰期
9. Objective To study the gross alpha and beta radioactivity and decay pattern of topaz colored by neutron radiation.
   目的探讨中子辐照改色黄玉的总放射性水平及其变化规律。
10. The structures of the nuclei on the alpha decay chain of 271 110 are investigated using self consistent relativistic mean field ( RMF) model.
    用自洽的相对论平均场模型研究了核271110及其α衰变链核的结构。
11. With the synthesis of heavy elements approaching the super heavy island, the production cross section becomes smaller and the lifetime of the super heavy element becomes longer, which results in the difficulties for identification of the elements by using conventional alpha decay chain technique.
    随着合成的超重元素向超重岛逼近，合成截面越来越小，同时，合成的超重元素的寿命可能相对增长，这对利用α衰变链的传统方法鉴别超重元素是非常不利的。

noun

1. radioactive decay of an atomic nucleus that is accompanied by the emission of an alpha particle