Collinear Resonance Ionization Spectroscopy of Neutron-Deficient Francium Isotopes

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 Fr-202. The background from nonresonant and collisional ioni...

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Detalles Bibliográficos
Autores principales: Flanagan, K T, Franchoo, S, Ruiz, R F Garcia, Budincevic, I, Procter, T J, Fedosseev, V N, Lynch, K M, Cocolios, T E, Marsh, B A, Neyens, G, Strashnov, I, Stroke, H H, Rossel, R E, Heylen, H, Billowes, J, Rothe, S, Bissell, M L, Wendt, K D A, de Groote, R P, De Schepper, S
Lenguaje:eng
Publicado: 2013
Materias:
Other Fields of Physics
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.111.212501
http://cds.cern.ch/record/1711841
Descripción
Sumario: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 Fr-202. The background from nonresonant and collisional ionization was maintained below one ion in 10(5) 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 Fr-205, with a departure observed in Fr-203 (N = 116).

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