Upgrade of the extraction system of permanent magnet electron cyclotron resonance ion source
- Zhang, M.
- Peng, S. X.
- Ren, H. T.
- Song, Z. Z.
- Yuan, Z. X.
- Zhou, Q. F.
- Lu, P. N.
- Xu, R.
- Zhao, J.
- Yu, J. X.
- Chen, J. E.
- Guo, Z. Y.
- Lu, Y. R.
Publication date
January 2010
DOI Publisher
review of scientific instruments ISSN
0034-6748 Journal
0034-6748 Citation count (estimate)
5Abstract
A set of new ion extraction electrodes have been designed for the permanent magnetic electron cyclotron resonance ion source at Peking University to improve beam quality and transmission. PBGUNS has been used to optimize the extraction electrodes and simulate the beam behavior at the extraction region. The experiments showed that with the new system, the beam half divergence angle can be less than 40 mrad and the normalized rms emittance is about 0.13 pi mm mrad when the extracted current is 100 mA at 50 keV in pulse mode. The voltage of the suppression electrode has great effect on beam divergence. The effect of the microwave power and gas flow is also studied.Instruments & InstrumentationPhysics, AppliedSCI(E)EIPubMed0ARTICLE202B7158
Add to ORKG