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Collinear Resonance Ionization Spectroscopy of Neutron-Deficient Francium Isotopes

Abstract : The magnetic moments and isotope shifts of the neutron-deficient francium isotopes Fr202-205 were measured at ISOLDE-CERN with use of collinear resonance ionization spectroscopy. A production-to-detection efficiency of 1% was measured for Fr202. The background from nonresonant and collisional ionization was maintained below one ion in 105 beam particles. Through a comparison of the measured charge radii with predictions from the spherical droplet model, it is concluded that the ground-state wave function remains spherical down to Fr205, with a departure observed in Fr203 (N=116).
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http://hal.in2p3.fr/in2p3-00924797
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Submitted on : Tuesday, January 7, 2014 - 10:54:13 AM
Last modification on : Wednesday, September 16, 2020 - 4:07:55 PM

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K. T. Flanagan, K. M. Lynch, J. Billowes, M. L. Bissell, I. Budinčević, et al.. Collinear Resonance Ionization Spectroscopy of Neutron-Deficient Francium Isotopes. Physical Review Letters, American Physical Society, 2013, 111, pp.212501. ⟨10.1103/PhysRevLett.111.212501⟩. ⟨in2p3-00924797⟩

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