Discovery and investigation of heavy neutron-rich isotopes with time-resolved Schottky spectrometry in the element range from thallium to actinium

Chen, L.; Plaß, W. R.; Geißel, H.; Knöbel, R.; Kozhuharov, C.; Litvinov, Yu. A.; Patyk, Z.; Scheidenberger, C.; Siegień-Iwaniuk, K.; Sun, B.; Weick, H.; Beckert, K.; Béller, P.; Bosch, F.; Boutin, D.; Cáceres, L.; Carroll, J. J.; Cullen, D. M.; Cullen, I. J.; Franzke, B.; Gerl, J.; Górska, M.; Jones, G. A.; Kishada, A.; Kurcewicz, J.; Litvinov, S.; Liu, Z.; Mandal, S.; Montes, F.; Münzenberg, G.; Nolden, F.; Ohtsubo, T.; Podolyák, Zs.; Propri, R.; Rigby, S. V.; Saito, N.; Saito, T.; Shindo, Mitsuru; Steck, M.; Ugorowski, Philip B.; Walker, P. M.; Williams, Spencer J.; Winkler, M.; Wollersheim, H. J.; Yamaguchi, Takayuki

doi:10.1016/j.physletb.2010.05.078

Cited by 64 publications

(32 citation statements)

References 33 publications

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“…213 Tl we significantly improve the precision on this measurement compared to the previously reported value, 101 +484 −46 s, extracted during a mass measurement using time-resolved Schottky spectrometry [16]. Figure 3 shows the results of the numerical fit for the above mentioned nuclei.…”

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confidence: 57%

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First measurement of beta decay half-lives in neutron-rich Tl and Bi isotopes

et al. 2012

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Neutron-rich isotopes around lead, beyond N=126, have been studied exploiting the fragmentation of an uranium primary beam at the FRS-RISING setup at GSI. For the first time β-decay half-lives of 219 Bi and 211,212,213 Tl isotopes have been derived. The half-lives have been extracted using a numerical simulation developed for experiments in high-background conditions. Comparison with state of the art models used in r-process calculations is given, showing a systematic underestimation of the experimental values, at variance from close-lying nuclei.

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confidence: 57%

“…See text for details. Half-lives of the nuclei marked with a star are already reported in literature [14,16].…”

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confidence: 98%

First measurement of beta decay half-lives in neutron-rich Tl and Bi isotopes

et al. 2012

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“…Several new isotopes 235 Ac [77], 236 Ac, 224 At, 221 Po, 222 Po and 213 Tl [78] have been discovered in the ESR where their masses and lifetimes were determined. The mass values for the chain of radon isotopes have been determined at ISOLTRAP where the new isotope 229 Rn has been discovered [79].…”

Section: Resultsmentioning

confidence: 99%

Mass and lifetime measurements of stored exotic nuclei

Litvinov¹,

Blaum²,

Winckler³

et al. 2011

Proceedings of 11th Symposium on Nuclei in the Cosmos — PoS(NIC XI)

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Knowledge of atomic masses is indispensable in nuclear structure and nuclear astrophysics. In the last two decades, majority of experimental data on nuclear masses stems from measurements of stored ions. The ions can be stored at low energies in a Penning trap or at significantly higher energies in a storage ring. In both cases revolution frequencies of ions trapped in a confining magnetic field are determined which enables high-precision mass measurements. In this contribution we sketch the experimental techniques and recent results. Future perspectives at the new generation radioactive beam facilities are outlined.

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“…The sensitivity of the present mass spectrometry is so high that for some nuclides the first experimental information is their masses [13]. If any experimental information of a nuclide other than its mass is available, we estimate a mass value for it based on the trends in the mass surface in the neighborhood.…”

Section: Estimates For Unknown Massesmentioning

confidence: 99%

The 2012 Atomic Mass Evaluation and Future

Wang¹,

Audi²,

Kondev³

et al. 2015

Proceedings of the Conference on Advances in Radioactive Isotope Science (ARIS2014)

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The Atomic Mass Evaluation (AME) contains the most reliable and comprehensive information for the values of the atomic masses and their uncertainties. A wealth of new, high-precision experimental data were included in the new version, AME2012, published in December 2012, and masses of many nuclides were improved significantly. The AME2012 is described and compared with the previous AME2003 evaluation. Perspectives about the future are given.

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Discovery and investigation of heavy neutron-rich isotopes with time-resolved Schottky spectrometry in the element range from thallium to actinium

Cited by 64 publications

References 33 publications

First measurement of beta decay half-lives in neutron-rich Tl and Bi isotopes

First measurement of beta decay half-lives in neutron-rich Tl and Bi isotopes

Mass and lifetime measurements of stored exotic nuclei

The 2012 Atomic Mass Evaluation and Future

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