氘双等离子体离子源的进展

THE PROGRESS OF DEUTERIUM DUOPLASMATRON ION SOURCE

摘要: <正> 一、引言低能加速器型中子发生器利用D-T反应能产生单色的14MeV快中子。发生器对离子束的要求既可以是原子离子(即必须分析),也可以是混合束(即不经分析)。现在中子发生器大多采用磁分析,虽然设备复杂些,但还是有其优点的。在原先调试的基础上,我们又进行了束分析的调试,源的结构也做了一些改进,使源的性能有了进一步提高。

Abstract: The mass spectra of the beam are measured and the construction of the ionsource has been improved. Total extracted beam current reaches 80mA. Bydeducting the contribution of H_2~+; we get I_D~+ =62.3mA, in which, I_(D_1~+) =32. 4mA,I_(D_2~+) =26.8mA and I_(D_3~+)=3.1mA. When larger are current (10A) is used. we obtainI~+～60mA and D_1~+ reaches 70%.