A 2.45GHz High Current Ion Source for Neutron Production
A 2.45GHz microwave-driven ion source is being used to provide 40mA of deuterium ion beam (peak current)for an RFQ accelerator as part of a neutron source system.We have also designed a 60kV electrostatic LEBT using computer simulations.In our experiment,we measured the hydrogen and deuterium ion beam currents as functions of discharge power,gas flow,and magnetic field strength.The required beam current was obtained using less than 700W of net microwave power with a gas flow of less than 1.5sccm.From the rise time data,it Was determined that in order to obtain a high percentage of atomic ions in the beam,the beam extraction should start after lms of switching on the microwave power.At steady state,the proton fraction Was above 90％.
microwave-driven ECR ion source proton deuterium beam
J.W.Kwan R.Gough R.Keller B.A.Ludewigt M.Regis R.P.Wells J.H.Vainionpaa
国际会议
The 17th International Workshop on ECR Ion Sources and Their Application(第17届国际ECR离子源研讨会)
兰州
英文
232-235
2006-09-17（万方平台首次上网日期，不代表论文的发表时间）