62Ni同位素的分离制备

微型核电池是目前航天器仪器、设备理想的电源。⁶³Ni是镍电池的核心工作物质。通过在反应堆中辐照高丰度的稳定同位素⁶²Ni，能产生放射性同位素⁶³Ni。为保证⁶²Ni的丰度达到要求，本文开展了⁶²Ni同位素的分离制备研究，进行了磁场及束流输运计算，对离子源及接收器口袋进行了改进设计，制定了电磁分离法分离高丰度⁶²Ni的工艺流程。利用现有的电磁同位素分离器，开展了用电磁分离法分离高丰度、高纯度⁶²Ni稳定同位素的实验，最终获得了丰度≥90%的⁶²Ni同位素。

Separation and Preparation of 62 Ni Isotope

Micro nuclear battery is the perfect power of space craft equipment. ⁶³Ni is the core operation material of the ⁶³Ni battery. It can produce radioisotope ⁶³Ni while high abundance ⁶²Ni is irradiated in the reactor. In order to meet the requirements of the abundance and the purity, research of the separation for ⁶²Ni isotope was developed. The magnetic field and beam transmission status were simulated. The improvement designs of the ion source and the collector pocket were carried out. The process flow of high abundance ⁶²Ni using electromagnetic separation method was established. The experiment of ⁶²Ni isotope was developed by using electromagnetism isotope separator. The results show that the enrichment of ⁶²Ni isotope is more than 90%.