Ion source development for isotope separator on-line based radioactive nuclear beam facility at KEK-Tanashi

For an isotope separator on-line based radioactive nuclear beam facility at KEK-Tanashi, two different types of ion sources are currently employed: a single stage 6.4 GHz electron cyclotron resonance ion source for 18 Ne 2+ and 19 Ne 2+ ions and a surface ionization-type ion source for 8 Li 1+ ions....

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Bibliographic Details
Published in:Review of Scientific Instruments 2000-02, Vol.71 (2), p.764-766
Main Authors: Jeong, S. C., Ishiyama, H., Ishida, Y., Kawakami, H., Kawashima, H., Miyatake, H., Mizutani, S., Oyaizu, M., Takaku, S., Tojyo, E., Yoshikawa, N., Wada, M., Katayama, I., Nomura, T.
Format: Article
Language:English
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Summary:For an isotope separator on-line based radioactive nuclear beam facility at KEK-Tanashi, two different types of ion sources are currently employed: a single stage 6.4 GHz electron cyclotron resonance ion source for 18 Ne 2+ and 19 Ne 2+ ions and a surface ionization-type ion source for 8 Li 1+ ions. The production target for Ne radioisotopes is LiF powder. Enclosed in a water-cooled Cu target cell, the target can sustain proton beam power of 120 W for a long term. The methods to suppress unwanted isotopes, like 19 F in 19 Ne and 18 O in 18 Ne , are discussed. For the production of 8 Li 1+ with the surface ionization-type ion source, a recoil-catcher method is adopted. The feasibility is discussed, comparing to a thick target method.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1150287