【国际原子能机构《报刊文摘》2000年2月16日报道】 在法国大型重离子加速器设施(位于法国卡昂)工作的物理学家通过试验发现了质子比中子多8个的 镍-48原子核。这种新核非常不稳定,在远小于1秒的时间内就会自行衰变。但是研究者说,它的瞬间存在足以使他们观察到一种放射性衰 IAEA Press Digest February 16, 2000 Physicists working at the large heavy ion accelerator facility in France (Caen, France) have discovered that nickel -48 nuclei with eight more protons than neutrons . This new core is very unstable and decays on its own in less than a second. But researchers say its momentary presence is long enough for them to observe a radioactive fallout