氫-4

氫-4是氫的一個人造放射性同位素，半衰期極短，極為不穩定。它包含了質子和三個中子。在實驗室裡，是用氘的原子核來轟炸氚的原子核，^[3]來合成一個氫-4的原子核。^[4]在這過程中，氚的原子核會從氘的原子核上吸收一個中子。氫-4的質量為4.02643 u，半衰期為1.39×10^-22秒。

參見编辑

^ ^1.0 ^1.1 Wang, Meng; Huang, W.J.; Kondev, F.G.; Audi, G.; Naimi, S. The AME 2020 atomic mass evaluation (II). Tables, graphs and references. Chinese Physics C. 2021, 45 (3): 030003. doi:10.1088/1674-1137/abddaf.
^ ^2.0 ^2.1 Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. The NUBASE2020 evaluation of nuclear properties (PDF). Chinese Physics C. 2021, 45 (3): 030001. doi:10.1088/1674-1137/abddae.
^ G. M. Ter-Akopian; et al. Hydrogen-4 and Hydrogen-5 from t+t and t+d transfer reactions studied with a 57.5-MeV triton beam. AIP Conference Proceedings. 2002, 610: 920–924. Bibcode:2002AIPC..610..920T. doi:10.1063/1.1470062.
^ Ter-Akopian, et. al. 2002.