Recent Results with the 6GHz Flat-B ECR Ion Source at ORNL-HRIBF
Experimental studies were conducted to characterize and improve the performance of the flat-B ECR ion source.The emittance of the source was investigated for the first time.The output beam currents of high-charge-states of Ar (q>8) were nearly doubled by increasing the plasma electrode aperture from 4mm to 6mm in diameter.To investigate possible enhancements with broadband microwave radiation,a whiteGaussian noise generator was employed with a TWT amplifier to generate microwave radiation with a bandwidth of～200MHz. The performance of the fiat-B ECR ion source was found to be much better with narrow bandwidth radiation when the source was operated in the fiat-B region.However.the ion beam intensities and charge state distributions were improved with the broadband radiation when the source was tuned off the flat-B region.
ECR ion source flat-B configuration multi-charged ions broadband microwave emittance
Y.Liu Y.Kawai G.D.Alton
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
80-84
2006-09-17（万方平台首次上网日期，不代表论文的发表时间）