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Transport and cooling of singly-charged noble gas ion beams

Abstract : The transport and cooling of noble gas singly-charged ion beams by means of a Radio Frequency Quadrupole Cooler Buncher (RFQCB) have been studied at the LIMBE low energy beam line of the GANIL facility. Ions as light as $^{4}He^+$ have been cooled and stored before their extraction in bunches using $H_2$ as buffer gas. Bunches characteristics have been studied as a function of the parameters of the device. Sizeable transmissions of up to 10 $% $ have been obtained. A detailed study of the lifetime of ions inside the buncher has been performed giving an estimate of the charge exchange cross-section. Results of a microscopic Monte-Carlo transport code show reasonable agreement with experimental data.
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Submitted on : Thursday, October 27, 2005 - 4:34:17 PM
Last modification on : Tuesday, April 2, 2019 - 1:34:42 AM

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G. Ban, G. Darius, D. Durand, X. Fléchard, M. Herbane, et al.. Transport and cooling of singly-charged noble gas ion beams. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2004, 518, pp.712-720. ⟨10.1016/j.nima.2003.10.111⟩. ⟨hal-00012793⟩



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