KEKCB electron cyclotron resonance charge breeder at TRIAC

The KEKCB is an electron cyclotron resonance (ECR) ion source for converting singly charged ions to multicharged ones at Tokai Radioactive Ion Accelerator Complex. By using the KEKCB, singly charged gaseous and nongaseous ions were converted to multicharged ones of A ∕ q ≃ 7 with efficiencies of 7%...

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Bibliographic Details
Published in:Review of scientific instruments 2008-02, Vol.79 (2), p.02A906-02A906-3
Main Authors: Imai, N., Jeong, S. C., Oyaizu, M., Arai, S., Fuchi, Y., Hirayama, Y., Ishiyama, H., Miyatake, H., Tanaka, M. H., Okada, M., Watanabe, Y. X., Ichikawa, S., Kabumoto, H., Osa, A., Otokawa, Y., Sato, T. K.
Format: Article
Language:English
Subjects:
ACCELERATORS
ALUMINIUM
BEAM INJECTION
COLLIMATORS
ECR ION SOURCES
EFFICIENCY
ELECTRON CYCLOTRON-RESONANCE
GRINDING
IONS
LIFETIME
NUCLEI
PARTICLE ACCELERATORS
PLASMA
WASHING
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Summary:The KEKCB is an electron cyclotron resonance (ECR) ion source for converting singly charged ions to multicharged ones at Tokai Radioactive Ion Accelerator Complex. By using the KEKCB, singly charged gaseous and nongaseous ions were converted to multicharged ones of A ∕ q ≃ 7 with efficiencies of 7% and 2%, respectively. The conversion efficiency was found to be independent of the lifetime of the radioactive nuclei having lifetimes of the order of one second. Three collimators located at the entrance and the exit of the KEKCB defined the beam axis and facilitated beam injection. Grinding and washing the surfaces of aluminum electrode and plasma chamber dramatically reduced impurities originating from the ECR plasma of the KEKCB.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.2828070