Direct mass measurement of bare short-lived 44V, 48Mn, 41Ti and 45Cr ions with isochronous mass spectrometry

Stadlmann, J.; Hausmann, M.; Attallah, F.; Beckert, K.; Béller, P.; Bosch, F.; Eickhoff, H.; Falch, M.; Franczak, B.; Franzke, B.; Geißel, H.; Kerscher, Th.; Klepper, O.; Kluge, H.‐J.; Kozhuharov, C.; Litvinov, Yu. A.; Löbner, K. E. G.; Matoš, M.; Münzenberg, G.; Nankov, N.; Nolden, F.; Novikov, Yu. N.; Ohtsubo, T.; Radon, T.; Schatz, H.; Scheidenberger, C.; Steck, M.; Weick, H.; Wöllnik, H.

doi:10.1016/j.physletb.2004.02.014

Cited by 106 publications

(37 citation statements)

References 22 publications

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“…A complementary technique, Isochronous Mass Spectrometry (IMS), can be applied to measure the frequencies of uncooled stored ions [19,41,73,74,75,76,77,78], which is ideally suited to investigate the shortest-lived nuclei with half-lives as short as a few tens of microseconds. The frequencies of each individual stored ion are measured with dedicated secondary-electron detectors [79,80,81,82].…”

Section: Methodsmentioning

confidence: 99%

Radioactive decays of highly-charged ions

Gao

Najafi

Atanasov

et al. 2015

EPJ Web of Conferences

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Abstract. Access to stored and cooled highly-charged radionuclides offers unprecedented opportunities to perform high-precision investigations of their decays. Since the few-electron ions, e.g. hydrogen-or helium-like ions, are quantum mechanical systems with clear electronic ground state configurations, the decay studies of such ions are performed under well-defined conditions and allow for addressing fundamental aspects of the decay process. Presented here is a compact review of the relevant experiments conducted at the Experimental Storage Ring ESR of GSI. A particular emphasis is given to the investigations of the two-body beta decay, namely the bound-state β-decay and its time-mirrored counterpart, orbital electron-capture.

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Section: Methodsmentioning

confidence: 99%

Radioactive decays of highly-charged ions

Gao

Najafi

Atanasov

et al. 2015

EPJ Web of Conferences

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“…In pilot IMS experiments [72,77], the best mass resolving power of about 110 000 and a mass accuracy of 100-500 keV were achieved. Nuclides with half-lives down to 50 ms were observed.…”

Section: The Achievable Relative Precision Of Pmts With the Tof-icr Tmentioning

confidence: 99%

Toward precision mass measurements of neutron-rich nuclei relevant to r-process nucleosynthesis

et al. 2015

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The open question of where, when, and how the heavy elements beyond iron enrich our Universe has triggered a new era in nuclear physics studies. Of all the relevant nuclear physics inputs, the mass of very neutron-rich nuclides is a key quantity for revealing the origin of heavy elements beyond iron. Although the precise determination of this property is a great challenge, enormous progress has been made in recent decades, and it has contributed significantly to both nuclear structure and astrophysical nucleosynthesis studies. In this review, we first survey our present knowledge of the nuclear mass surface, emphasizing the importance of nuclear mass precision in r-process calculations. We then discuss recent progress in various methods of nuclear mass measurement with a few selected examples. For each method, we focus on recent breakthroughs and discuss possible ways of improving the weighing of r-process nuclides.

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“…One way to achieve the latter is to use a special ion-optical setting of the ring and inject the ions with γ = γ t . This is the basis of the isochronous mass spectrometry (IMS) [21][22][23][24]. In the IMS, the velocity spreads of the ions are compensated by the orbit lengths and their revolution times are a direct measure of m/q of the ions.…”

Section: Storage Ring Mass Spectrometrymentioning

confidence: 99%

Precision Mass Measurements of Short-Lived Nuclides at the Heavy-Ion Storage Ring in Lanzhou

Zhang

Litvinov

2015

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

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Recent commissioning of the Cooler Storage Ring at the Heavy Ion Research Facility in Lanzhou enabled us to conduct high-precision mass measurements at the Institute of Modern Physics in Lanzhou (IMP). In the past few years, mass measurements were performed using the CSRe-based isochronous mass spectrometry employing the fragmentation of the energetic beams of 58 Ni, 78 Kr, 86 Kr, and 112 Sn projectiles. Masses of short-lived nuclides of on both sides of the stability valley were addressed. Relative mass precision of down to 10 −6 − 10 −7 is routinely achieved. The mass values were used as an input for dedicated nuclear structure and astrophysics studies, providing for instance new insights into the rp-process of nucleosynthesis in X-ray bursts. In this contribution, we briefly review the so far conducted experiments and the main achieved results, as well as outline the plans for future experiments.

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Direct mass measurement of bare short-lived 44V, 48Mn, 41Ti and 45Cr ions with isochronous mass spectrometry

Cited by 106 publications

References 22 publications

Radioactive decays of highly-charged ions

Radioactive decays of highly-charged ions

Toward precision mass measurements of neutron-rich nuclei relevant to r-process nucleosynthesis

Precision Mass Measurements of Short-Lived Nuclides at the Heavy-Ion Storage Ring in Lanzhou

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