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Development of a 1+/N+ setup for the production of multicharged radioactive alkali ions in SPIRAL

Abstract : In the framework of the production of radioactive ion beams by the isotope separator online method, a new system has been developed at GANIL/SPIRAL I to produce multicharged alkali ions. The principle, referred to as the “direct 1+/N+ method,” consists of a surface ionization source associated with a multicharged electron-cyclotron-resonance ion source without an intermediate mass separator. This new system has been tested online using a 48Ca primary beam at 60.3 A MeV. The experimental evidence of the direct 1+/N+ process has been obtained for a potential difference between the two sources of 11 V and with a 1+/N+ charge breeding efficiency of 0.04% for 47K5+. This value is significantly lower than the value of 6% obtained for stable K ions with the standard 1+/N+ method. A possible explanation is given in the text.
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http://hal.in2p3.fr/in2p3-00270591
Contributor : Michel Lion <>
Submitted on : Monday, April 7, 2008 - 9:27:03 AM
Last modification on : Tuesday, February 5, 2019 - 12:12:26 PM

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C. Eléon, G. Gaubert, P. Jardin, M.G. Saint-Laurent, J.A. Alcantara-Nunez, et al.. Development of a 1+/N+ setup for the production of multicharged radioactive alkali ions in SPIRAL. 12th International Conference on Ion Sources (ICIS2007), Aug 2007, Jeju, South Korea. pp.02A904, ⟨10.1063/1.2819738⟩. ⟨in2p3-00270591⟩

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