Collinear resonance ionization spectroscopy of neutron-deficient francium isotopes

K.T. Flanagan; K.M. Lynch; J. Billowes; M.L. Bissell; I. Budinčević; T.E. Cocolios; R.P. De Groote; S. De Schepper; V.N. Fedosseev; S. Franchoo; R.F. Garcia Ruiz; H. Heylen; B.A. Marsh; G. Neyens; T.J. Procter; R.E. Rossel; S. Rothe; I. Strashnov; H.H. Stroke; K.D.A. Wendt

doi:10.1103/PhysRevLett.111.212501

Collinear resonance ionization spectroscopy of neutron-deficient francium isotopes

K.T. Flanagan, K.M. Lynch, J. Billowes, M.L. Bissell, I. Budinčević, T.E. Cocolios, R.P. De Groote, S. De Schepper, V.N. Fedosseev, S. Franchoo, R.F. Garcia Ruiz, H. Heylen, B.A. Marsh, G. Neyens, T.J. Procter, R.E. Rossel, S. Rothe, I. Strashnov, H.H. Stroke, K.D.A. Wendt

Nuclear Physics Group

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Abstract

The magnetic moments and isotope shifts of the neutron-deficient francium isotopes ^202−205Fr were measured at ISOLDE-CERN with use of collinear resonance ionization spectroscopy. A production-to-detection efficiency of 1% was measured for ²⁰²Fr. 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 ²⁰⁵Fr, with a departure observed in ²⁰³Fr (N=116).

Original language	English
Article number	212501
Pages (from-to)	1-4
Number of pages	4
Journal	Physical Review Letters
Volume	111
Issue number	21
Early online date	19 Nov 2013
DOIs	https://doi.org/10.1103/PhysRevLett.111.212501
Publication status	Published - 22 Nov 2013

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Flanagan, K. T., Lynch, K. M., Billowes, J., Bissell, M. L., Budinčević, I., Cocolios, T. E., De Groote, R. P., De Schepper, S., Fedosseev, V. N., Franchoo, S., Garcia Ruiz, R. F., Heylen, H., Marsh, B. A., Neyens, G., Procter, T. J., Rossel, R. E., Rothe, S., Strashnov, I., Stroke, H. H., & Wendt, K. D. A. (2013). Collinear resonance ionization spectroscopy of neutron-deficient francium isotopes. Physical Review Letters, 111(21), 1-4. Article 212501. https://doi.org/10.1103/PhysRevLett.111.212501

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title = "Collinear resonance ionization spectroscopy of neutron-deficient francium isotopes",

abstract = "The magnetic moments and isotope shifts of the neutron-deficient francium isotopes 202−205Fr were measured at ISOLDE-CERN with use of collinear resonance ionization spectroscopy. A production-to-detection efficiency of 1% was measured for 202Fr. 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 205Fr, with a departure observed in 203Fr (N=116).",

author = "K.T. Flanagan and K.M. Lynch and J. Billowes and M.L. Bissell and I. Budin{\v c}evi{\'c} and T.E. Cocolios and {De Groote}, R.P. and {De Schepper}, S. and V.N. Fedosseev and S. Franchoo and {Garcia Ruiz}, R.F. and H. Heylen and B.A. Marsh and G. Neyens and T.J. Procter and R.E. Rossel and S. Rothe and I. Strashnov and H.H. Stroke and K.D.A. Wendt",

year = "2013",

month = nov,

day = "22",

doi = "10.1103/PhysRevLett.111.212501",

language = "English",

volume = "111",

pages = "1--4",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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Flanagan, KT , Lynch, KM , Billowes, J, Bissell, ML, Budinčević, I, Cocolios, TE, De Groote, RP, De Schepper, S, Fedosseev, VN, Franchoo, S, Garcia Ruiz, RF, Heylen, H, Marsh, BA, Neyens, G, Procter, TJ, Rossel, RE, Rothe, S, Strashnov, I, Stroke, HH & Wendt, KDA 2013, 'Collinear resonance ionization spectroscopy of neutron-deficient francium isotopes', Physical Review Letters, vol. 111, no. 21, 212501, pp. 1-4. https://doi.org/10.1103/PhysRevLett.111.212501

TY - JOUR

T1 - Collinear resonance ionization spectroscopy of neutron-deficient francium isotopes

AU - Flanagan, K.T.

AU - Lynch, K.M.

AU - Billowes, J.

AU - Bissell, M.L.

AU - Budinčević, I.

AU - Cocolios, T.E.

AU - De Groote, R.P.

AU - De Schepper, S.

AU - Fedosseev, V.N.

AU - Franchoo, S.

AU - Garcia Ruiz, R.F.

AU - Heylen, H.

AU - Marsh, B.A.

AU - Neyens, G.

AU - Procter, T.J.

AU - Rossel, R.E.

AU - Rothe, S.

AU - Strashnov, I.

AU - Stroke, H.H.

AU - Wendt, K.D.A.

PY - 2013/11/22

Y1 - 2013/11/22

N2 - The magnetic moments and isotope shifts of the neutron-deficient francium isotopes 202−205Fr were measured at ISOLDE-CERN with use of collinear resonance ionization spectroscopy. A production-to-detection efficiency of 1% was measured for 202Fr. 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 205Fr, with a departure observed in 203Fr (N=116).

AB - The magnetic moments and isotope shifts of the neutron-deficient francium isotopes 202−205Fr were measured at ISOLDE-CERN with use of collinear resonance ionization spectroscopy. A production-to-detection efficiency of 1% was measured for 202Fr. 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 205Fr, with a departure observed in 203Fr (N=116).

UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-84888856336&partnerID=MN8TOARS

U2 - 10.1103/PhysRevLett.111.212501

DO - 10.1103/PhysRevLett.111.212501

M3 - Article

SN - 0031-9007

VL - 111

SP - 1

EP - 4

JO - Physical Review Letters

JF - Physical Review Letters

IS - 21

M1 - 212501

ER -

Collinear resonance ionization spectroscopy of neutron-deficient francium isotopes

Abstract

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