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“Ultra P ure and High I ntensity M ultiply C harged R adioactive I on B eams”

“Ultra P ure and High I ntensity M ultiply C harged R adioactive I on B eams”. Pierre Delahaye on behalf of the JRA7 proposers:. LoI JRA7. P. Jardin, N. Lecesne, G. Gaubert, R. Leroy, M. G. St Laurent , A. Villari. P. Delahaye, F. Wenander, M. Marie-Jeanne, P. Suominen,

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“Ultra P ure and High I ntensity M ultiply C harged R adioactive I on B eams”

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  1. “Ultra Pure and High Intensity Multiply Charged Radioactive Ion Beams” Pierre Delahaye on behalf of the JRA7 proposers: LoI JRA7 P. Jardin, N. Lecesne, G. Gaubert, R. Leroy, M. G. St Laurent , A. Villari P. Delahaye, F. Wenander, M. Marie-Jeanne, P. Suominen, L. Fraile, K. Riisager, M. Lindroos T. Lamy, T. Thuillier, J. Angot Associated institutes: IPNS KEK, Japan S. Jeong, N. Imai, M. Oyaizu, H. Myiatake IAP RAS Nizhny Novgorod, Russia V. Zorin, I. Izotov, V. Skalyga H. Koivisto, A. Jokinen C. Barton +KVI? Sytze Brandenburg

  2. Improvement of ECR devices for pure and intense RIBS Intense multiply charged RIBs for next generation facilities • RIB multi-ionization: efficient post-acceleration of any isotope along the chart • EURONS Charge breeder JRA (O. Kester) • An efficient method using EBIS or ECR cb • High charge states for EBIS but limitation in intensity (REXEBIS 109/s) • High intensity for ECR but high stable background

  3. SPIRAL I n+ beams from Nanogan III Permanent magnets - (noble) gases mainly ARC-ECRIS Poster P20 P. Suominen MISTIC ECRIS (TRIUMF/GANIL collaboration) Beam purification Gas to n + CIME Ongoing work (up to 6 GHz?) Transfer line ECR source Next generation: 8 GHz?, 10 GHz? Target A/q, E P. Jardin as task coordinator Radiation hard coils N. Lecesne and F. Labrecque, Proceedings of EMIS07, Deauville, France Dedicated devices (1) • n+ isotopes from a RADIATION HARD source

  4. RIB manipulation 1+ to n+ Low Energy RIBs Postacceleration HIE-ISOLDE Daresbury charge breeder at ISOLDE ECR source 1+n+ for SPIRAL II T. Lamy, ICIS2007 Proceedings RFQcb • Phoenix ECRIS 14GHz • Good efficiencies but: • high stable background • Injection of light masses (m<20) A/q, E 1+ Cooling Bunching UHV device P. Delahaye et al., Rev. Sci. Instrum. 77, 03B105 (2006) Target ECR cb upgrade UHV design and A/q, E separator Cooled and bunched beams! ISCOOL Online oct. 2007 Purification, higher efficiencies and charge states P. Delahaye and M. Marie-Jeanne, EMIS2007 Proceedings Dedicated devices (2) • 1+n+ from an ECR charge breeder

  5. LoI JRA7 • Gaining knowledge in ECR devices for RIB multi-ionization • 1+/n+ gas/n+ comparison • Validity of the batch model for ECR devices! • Bunching n+ RIBs for beta beams! • Exploiting novel ideas for RIB manipulation in n+ ECR devices • Radiation hard sources, ARC-ECRIS for n+ sources • Combination of an RFQ cooler and buncher and of a charge breeder • UHV charge breeder for moderate frequency • Important items for SPIRAL II and HIE-ISOLDE • But also TRIUMF (Canada), KEK (Japan), ANL (US)… • Relying on existing instruments or already funded equipment • Support for manpower needed From R. Becker, Rev. Sci. Instrum. 71(2000)816, EBIS devices ECR with bunched beams and pulsed extraction, as for EBIS

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