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由60MeV/μ18O离子照射天然钍靶所引起的232Th-2p反应产生230Ra,通过放射化学分离方法从被照射的靶中提取出镭元素并制成薄源,经230Ra230Ac得到230Ac.用云母裂变径迹探测器和PHGeγ射线探测器对来自源中的裂变碎片和γ谱进行记录和测量,借助于所测得的两个裂变事件和γ谱,鉴别了β-延发裂变核230Ac,得到了它的β-延发裂变概率为（1.19±0.85）×10-8.
232Th-2p reaction caused by irradiation of natural thorium target with 60MeV / μ18O ion gives 230Ra, radium element is extracted from irradiated target by radiochemical separation method and made into thin source, and 230Ac is obtained by 230Ra230Ac. With mica fission track The fission fragments and gamma spectra from the source were recorded and measured with a detector and a PHGe gamma ray detector. With the aid of the two fission events and gamma spectra measured, the beta-delayed fission nucleus 230Ac was identified and its The probability of β-delayed fission was (1.19 ± 0.85) × 10-8.