Penning trap mass measurements utilizing highly charged ions as a path to benchmark isospin-symmetry breaking corrections in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">Rb</mml:mi><mml:mprescripts /><mml:none /><mml:mn>74</mml:mn></mml:mmultiscripts></mml:math>

Malbrunot-Ettenauer, S.; Brunner, T.; Chowdhury, U.; Gallant, A. T.; Simon, Vanessa V.; Brodeur, M.; Chaudhuri, A.; Mané, E.; Simon, M. C.; Andreoiu, C.; Audi, G.; López‐Urrutia, J. R. Crespo; Delheij, P. P. J.; Gwinner, G.; Lapierre, A.; Lunney, D.; Pearson, M. R.; Ringle, R.; Ullrich, J.; Dilling, J.

doi:10.1103/physrevc.91.045504

Cited by 13 publications

(3 citation statements)

References 86 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The advantage of using HCIs for short lived isotopes is an increase in precision by a factor identical to the charge state q of the ion. The first demonstration of this technique resulted in a mass excess for 74 Rb, −51916.5(6.0) keV, that was consistent with a previous value obtained at ISOLTRAP and resulted in a modest reduction in the uncertainty of the Q value of ~12% [192,193], corresponding to an uncertainty in f of 0.2%. Currently, TITAN facility upgrades are planned to increase the precision in future HCI mass measurements by a factor of 10.…”

Section: Fundamental Symmetry Testssupporting

confidence: 84%

The TRIUMF-ISAC facility: two decades of discovery with rare isotope beams

2016

View full text Add to dashboard Cite

Since 1999, the TRIUMF-ISAC facility has been providing rare isotope beams for nuclear physics experiments. The three pillars of the program are nuclear structure, nuclear astrophysics, and fundamental symmetries. This article reviews highlights of each of these aspects of the ISAC science program, including tests of the collective behaviors, first explained by Bohr, Mottelson and Rainwater, at the limits of nuclear stability, and future prospects with the ARIEL facility at TRIUMF.

show abstract

Section: Fundamental Symmetry Testssupporting

confidence: 84%

The TRIUMF-ISAC facility: two decades of discovery with rare isotope beams

2016

View full text Add to dashboard Cite

show abstract

“…The excitation time is restricted by the ion's half-life; the magnetic field is limited technically to 4 − 10 T; and, N ion depends on the isotopes' yield and the overall system efficiency. With an EBIT, however, the charge state of radioactive ions can be increased within a few milliseconds, providing a powerful tool for high-precision mass measurements on short-lived isotopes far from stability [25][26][27]. TITAN is currently the only facility in the world using highly charged ions (HCI) for the purpose of Penning-trap mass spectrometry (PTMS) on short-lived isotopes, bringing unique opportunities and challenges [28].…”

Section: Experimental Methodsmentioning

confidence: 99%

Mass measurements of neutron-rich Rb and Sr isotopes

et al. 2016

Self Cite

View full text Add to dashboard Cite

We report on the mass measurements of several neutron-rich Rb and Sr isotopes in the A≈100 region with the TITAN Penning-trap mass spectrometer. By using highly charged ions in the charge state q=10+, the masses of ^98,99Rb and ^98-100 Sr have been determined with a precision of 6–12 keV, making their uncertainty negligible for r-process nucleosynthesis network calculations. The mass of ¹⁰¹ Sr has been determined directly for the first time with a precision eight times higher than the previous indirect measurement and a deviation of 3σ when compared to the Atomic Mass Evaluation. We also confirm the mass of ¹⁰⁰ Rb from a previous measurement. Furthermore, our data indicate the existence of a low-lying isomer with 80keV excitation energy in ⁹⁸ Rb. We show that our updated mass values lead to minor changes in the r process by calculating fractional abundances in the A≈100 region of the nuclear chart

show abstract

“…In order to reach the highest possible precision and shorter measurement times, ions can be charge-bred into higher charge states by an Electron Beam Ion Trap (EBIT) [5]. Using highly-charged ions, TITAN is capable of performing mass measurements of short-lived heavy species with very high precision and accuracy [6].…”

Section: Fig Photograph Of the Mr-tof-ms Installed On The Titan Beammentioning

confidence: 99%

Recent upgrades of the multiple-reflection time-of-flight mass spectrometer at TITAN, TRIUMF

et al. 2019

View full text Add to dashboard Cite

A multiple-reflection time-of-flight mass spectrometer (MR-TOF-MS) has been installed and integrated into the TITAN experiment at TRIUMF. The MR-TOF-MS extends the capabilities and improves the performance of the TITAN experiment, for instance it provides fast isobar separation, short measurement cycles, yield measurements and broad-band beam diagnosis, and enhanced rate capabilities and dynamic range. Thereby, even more exotic nuclides become accessible at TITAN for experiments. Such improved capabilities of TITAN have been used in first experiments to investigate the sub-shell closure of neutronrich nuclides at N = 32 and the r-process nucleo-synthesis for masses at A ∼ 85. The vacuum system, electronics and data-acquisition hardware and software have been recently upgraded. For the first time an isomeric state has been measured with TITAN s MR-TOF-MS, 84m Rb (excitation energy: 464 keV). The accurate measurement of excitation energies of low-lying isomeric states is possible due to the high mass resolving power of TITAN s MR-TOF-MS and a specialized data-analysis procedure. Keywords Mass measurements • MR-TOF-MS • Exotic nuclides • Isomers • Instrument control • On-and offline data-analysis This article is part of the Topical Collection on

show abstract

Penning trap mass measurements utilizing highly charged ions as a path to benchmark isospin-symmetry breaking corrections inRb74

Cited by 13 publications

References 86 publications

The TRIUMF-ISAC facility: two decades of discovery with rare isotope beams

The TRIUMF-ISAC facility: two decades of discovery with rare isotope beams

Mass measurements of neutron-rich Rb and Sr isotopes

Recent upgrades of the multiple-reflection time-of-flight mass spectrometer at TITAN, TRIUMF

Contact Info

Product

Resources

About