论文部分内容阅读
在CARR开堆时第一次实现了CARR-ISOL在线调试。采用1.2 mg高浓铀电镀靶,在反应堆20 MW开堆功率条件下,将裂变靶室放置在长切向孔道内5 m处,经注量率约5×1013 cm-2·s-1的热中子辐照,裂变产物被阻止在混有KCl气溶胶颗粒的He、N2混合气体中,经由毛细管道输送至孔道外的离子源,经电离、引出、加速、聚焦、电磁偏转、漂移等过程,在产物收集位置进行物理测量,观察到了138Xe、138Cs等裂变产物核素的多条特征γ射线,并跟踪测量多个能谱,观察到了
The first time CARR-ISOL was commissioned on-the-go when CARR was opened. Using 1.2 mg HEU electroplating target, the fission target chamber was placed at 5 m within the long tangential channel at a reactor power of 20 MW, and a target volume of 5 × 1013 cm-2 · s-1 Thermal neutron irradiation, fission products are blocked in mixed with KCl aerosol particles He, N2 gas mixture, via the capillary transport to the ion source outside the channel, ionization, extraction, acceleration, focusing, electromagnetic deflection, drift, etc. Process, the physical measurement of the product collection location, observed 138Xe, 138Cs and other fission products nuclides of a number of characteristics of gamma rays, and tracking the measurement of multiple energy spectra observed