Accurate masses of neutron-deficient nuclides close to Z=82

S. Schwarz; F. Ames; G. Audi; D. Beck; G. Bollen; C. De Coster; J. Dilling; O. Engels; R. Fossion; J. E. Garcia Ramos; S. Henry; F. Herfurth; K. Heyde; A. Kellerbauer; H. J. Kluge; A. Kohl; E. Lamour; D. Lunney; I. Martel; R. B. Moore; M. Oinonen; H. Raimbault-Hartmann; C. Scheidenberger; G. Sikler; J. Szerypo; C. Weber

doi:10.1016/S0375-9474(01)00881-8

Accurate masses of neutron-deficient nuclides close to Z=82

S. Schwarz, F. Ames, G. Audi, D. Beck, G. Bollen, C. De Coster, J. Dilling, O. Engels, R. Fossion, J. E. Garcia Ramos, S. Henry, F. Herfurth, K. Heyde, A. Kellerbauer, H. J. Kluge, A. Kohl, E. Lamour, D. Lunney, I. Martel, R. B. MooreM. Oinonen, H. Raimbault-Hartmann, C. Scheidenberger, G. Sikler, J. Szerypo, C. Weber

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Abstract

Mass measurements with the Penning-trap mass spectrometer ISOLTRAP at ISOLDE/CERN are extended to nonsurface ionizable species using newly developed ion-beam bunching devices. Masses of ^179-197Hg, ^196,198Pb, ¹⁹⁷Bi, ¹⁹⁸Po and ²⁰³At were determined with an accuracy of 1×10^-7 corresponding to δm≈20 keV. Applying a resolving power of up to 3.7×10⁶ ground and isomeric states of ^{185,187,191,193,197}Hg were separated. First experimental values for the isomeric excitation energy of ^187,191Hg are obtained. A least-squares adjustment has been performed and theoretical approaches are discussed to model the observed fine structure in the binding energy.

Original language	English
Pages (from-to)	533-545
Number of pages	13
Journal	Nuclear Physics A
Volume	693
Issue number	3-4
DOIs	https://doi.org/10.1016/S0375-9474(01)00881-8
State	Published - Oct 22 2001
Externally published	Yes

Funding

This work was supported by the European Commission within the EUROTRAPS network under contract number ERBFMRXCT97-0144, within the RTD project EXOTRAPS under contract number ERBFMGCET980099 and by NSERC of Canada. We thank R. Wyss for communicating TPE calculations of absolute binding energies prior to publication. Four of the authors (C.D.C, K.H., R.F., J.-E.G.-R.) are most grateful to P. Van Isacker and A. Oros for many discussions on this point. They thank the FWO for financial support and NATO for the research grant CRG96-0981.

Funders	Funder number
North Atlantic Treaty Organization	CRG96-0981
Natural Sciences and Engineering Research Council of Canada
European Commission	ERBFMGCET980099, ERBFMRXCT97-0144
Fonds Wetenschappelijk Onderzoek

Keywords

07.75.+h
21.10.Dr
27.70.+q
27.80.+w
32.10.Bi
ATOMIC MASSES Hg, Pb, Bi, Po

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10.1016/S0375-9474(01)00881-8

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Schwarz, S., Ames, F., Audi, G., Beck, D., Bollen, G., De Coster, C., Dilling, J., Engels, O., Fossion, R., Garcia Ramos, J. E., Henry, S., Herfurth, F., Heyde, K., Kellerbauer, A., Kluge, H. J., Kohl, A., Lamour, E., Lunney, D., Martel, I., ... Weber, C. (2001). Accurate masses of neutron-deficient nuclides close to Z=82. Nuclear Physics A, 693(3-4), 533-545. https://doi.org/10.1016/S0375-9474(01)00881-8

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title = "Accurate masses of neutron-deficient nuclides close to Z=82",

abstract = "Mass measurements with the Penning-trap mass spectrometer ISOLTRAP at ISOLDE/CERN are extended to nonsurface ionizable species using newly developed ion-beam bunching devices. Masses of 179-197Hg, 196,198Pb, 197Bi, 198Po and 203At were determined with an accuracy of 1×10-7 corresponding to δm≈20 keV. Applying a resolving power of up to 3.7×106 ground and isomeric states of 185,187,191,193,197Hg were separated. First experimental values for the isomeric excitation energy of 187,191Hg are obtained. A least-squares adjustment has been performed and theoretical approaches are discussed to model the observed fine structure in the binding energy.",

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author = "S. Schwarz and F. Ames and G. Audi and D. Beck and G. Bollen and {De Coster}, C. and J. Dilling and O. Engels and R. Fossion and {Garcia Ramos}, {J. E.} and S. Henry and F. Herfurth and K. Heyde and A. Kellerbauer and Kluge, {H. J.} and A. Kohl and E. Lamour and D. Lunney and I. Martel and Moore, {R. B.} and M. Oinonen and H. Raimbault-Hartmann and C. Scheidenberger and G. Sikler and J. Szerypo and C. Weber",

year = "2001",

month = oct,

day = "22",

doi = "10.1016/S0375-9474(01)00881-8",

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Schwarz, S, Ames, F, Audi, G, Beck, D, Bollen, G, De Coster, C, Dilling, J, Engels, O, Fossion, R, Garcia Ramos, JE, Henry, S, Herfurth, F, Heyde, K, Kellerbauer, A, Kluge, HJ, Kohl, A, Lamour, E, Lunney, D, Martel, I, Moore, RB, Oinonen, M, Raimbault-Hartmann, H, Scheidenberger, C, Sikler, G, Szerypo, J & Weber, C 2001, 'Accurate masses of neutron-deficient nuclides close to Z=82', Nuclear Physics A, vol. 693, no. 3-4, pp. 533-545. https://doi.org/10.1016/S0375-9474(01)00881-8

TY - JOUR

T1 - Accurate masses of neutron-deficient nuclides close to Z=82

AU - Schwarz, S.

AU - Ames, F.

AU - Audi, G.

AU - Beck, D.

AU - Bollen, G.

AU - De Coster, C.

AU - Dilling, J.

AU - Engels, O.

AU - Fossion, R.

AU - Garcia Ramos, J. E.

AU - Henry, S.

AU - Herfurth, F.

AU - Heyde, K.

AU - Kellerbauer, A.

AU - Kluge, H. J.

AU - Kohl, A.

AU - Lamour, E.

AU - Lunney, D.

AU - Martel, I.

AU - Moore, R. B.

AU - Oinonen, M.

AU - Raimbault-Hartmann, H.

AU - Scheidenberger, C.

AU - Sikler, G.

AU - Szerypo, J.

AU - Weber, C.

PY - 2001/10/22

Y1 - 2001/10/22

N2 - Mass measurements with the Penning-trap mass spectrometer ISOLTRAP at ISOLDE/CERN are extended to nonsurface ionizable species using newly developed ion-beam bunching devices. Masses of 179-197Hg, 196,198Pb, 197Bi, 198Po and 203At were determined with an accuracy of 1×10-7 corresponding to δm≈20 keV. Applying a resolving power of up to 3.7×106 ground and isomeric states of 185,187,191,193,197Hg were separated. First experimental values for the isomeric excitation energy of 187,191Hg are obtained. A least-squares adjustment has been performed and theoretical approaches are discussed to model the observed fine structure in the binding energy.

AB - Mass measurements with the Penning-trap mass spectrometer ISOLTRAP at ISOLDE/CERN are extended to nonsurface ionizable species using newly developed ion-beam bunching devices. Masses of 179-197Hg, 196,198Pb, 197Bi, 198Po and 203At were determined with an accuracy of 1×10-7 corresponding to δm≈20 keV. Applying a resolving power of up to 3.7×106 ground and isomeric states of 185,187,191,193,197Hg were separated. First experimental values for the isomeric excitation energy of 187,191Hg are obtained. A least-squares adjustment has been performed and theoretical approaches are discussed to model the observed fine structure in the binding energy.

KW - 07.75.+h

KW - 21.10.Dr

KW - 27.70.+q

KW - 27.80.+w

KW - 32.10.Bi

KW - ATOMIC MASSES Hg, Pb, Bi, Po

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U2 - 10.1016/S0375-9474(01)00881-8

DO - 10.1016/S0375-9474(01)00881-8

M3 - Article

AN - SCOPUS:0035935464

SN - 0375-9474

VL - 693

SP - 533

EP - 545

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 3-4

ER -

Accurate masses of neutron-deficient nuclides close to Z=82

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Keywords

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