近物所在产生金属离子束方面的研究(英文)

摘要

Since 1998,many experiments for metallic ion production have been done on LECR2（Lanzhou ECR ion source NO.2）,LECR3（Lanzhou ECR ion source NO.3）and SECRAL（Superconductiong ECB ion source Advanced design in Lanzhou）at Institute of Modern Physics.The very heavy metallic ion beams such as those of uranium were also produced by the plasma sputtering method,and supplied for HIRFL（Heavy Ion Research Facility in Lanzhou）accelerators successfully.During the test,11.SeμAU28+,9eμAU24+ were obtained.Some ion beams of the metal having lower melting temperature such as Ni and Mg ion beams were produced by oven method on LECR3 too.The consumption rate was controlled to be lower for 26Mg ion beams production,and the minimum consumption was about 0.3mg per hour.In this paper,the main experimental results are given.Some discussions are made for some experimental phenomena and results,and some conclusions are drawn.