双等源强流离子束分析

INTENSE BEAM ANALYSIS OF DUOPLASMATRON SOURCE

目前所使用的各种离子源,还不能产生具有完全单一荷质比的离子,所以,离子源所提供的离子束是包含多种离子组态的混合束。因此,要把离子加速到高能,就涉及到一个多动量离子束加速系统。在由电磁场(电磁组件)构成的强流带电粒子加速系统中,多动量离子束的加速和聚焦会产生许多缺陷与困难。在强流加速器中,提高所需离子的加速效率,减轻加速器的总负荷。

The paper reports experimental results of intense beams extracted from thedouplasmatron source. The experiment is made on the test facility of the intensebeam of the Lanzhou University. On condition that hydrogen beams(mixed beams)are 100mA, beam energy is 33keV, 40mA proton currents are obtained be-hind the magnetic analyzer. And the diameter of beam spot is 2.5--3cm. Main dif-ficult point in the experiment and further measure to raise proton beam currentsare discussed as well.