Commissioning and performance of TITAN’s Multiple-Reflection Time-of-Flight Mass-Spectrometer and isobar separator

Reiter, M. P.; Andrés, Samuel Ayet San; Bergmann, J.; Dickel, T.; Dilling, J.; Jacobs, Andrew; Kwiatkowski, A. A.; Scheidenberger, C.; Short, D.; Will, C.; Babcock, C.; Dunling, E.; Finlay, A.; Hornung, C.; Jesch, C.; Klawitter, R.; Kootte, B.; Lascar, D.; Leistenschneider, E.; Murböck, T.; Paul, S. F.; Yavor, M.I.

doi:10.1016/j.nima.2021.165823

Cited by 26 publications

(16 citation statements)

References 66 publications

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“…Since the mass resolution is proportional to the time-of-flight (R = t/2∆t), a long flight path is desired and achieved via two electrostatic mirrors. Isochronous reflection of ions by these mirrors for a sufficient number of turns achieves the desired resolution [24].…”

Section: Methodsmentioning

confidence: 99%

Investigating nuclear structure near N=32 and N=34: Precision mass measurements of neutron-rich Ca, Ti, and V isotopes

Porter¹,

Dunling²,

Leistenschneider³

et al. 2022

Phys. Rev. C

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Nuclear mass measurements of isotopes are key to improving our understanding of nuclear structure across the chart of nuclides, in particular for the determination of the appearance or disappearance of nuclear shell closures. We present high-precision mass measurements of neutron-rich Ca, Ti and V isotopes performed at TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN) and the Low Energy Beam and Ion Trap (LEBIT) facilities. These measurements were made using the TITAN multiple-reflection time-of-flight mass spectrometer (MR-ToF-MS) and the LEBIT 9.4T Penning trap mass spectrometer. In total, 13 masses were measured, eight of which represent increases in precision over previous measurements. These measurements refine trends in the mass surface around N = 32 and N = 34, and support the disappearance of the N = 32 shell closure with increasing proton number. Additionally, our data does not support the presence of a shell closure at N = 34.

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Section: Methodsmentioning

confidence: 99%

Investigating nuclear structure near N=32 and N=34: Precision mass measurements of neutron-rich Ca, Ti, and V isotopes

Porter¹,

Dunling²,

Leistenschneider³

et al. 2022

Phys. Rev. C

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“…The ion arrival times at the detector were recorded using a timeto-digital converter and the dedicated Mass Acquistion software (MAc) [52,53]. More details on technical aspects and the performance of TITAN's MR-TOF-MS can be found in [54].…”

Section: Methodsmentioning

confidence: 99%

Mass measurements of Ga60–63 reduce x-ray burst model uncertainties and extend the evaluated T=1 isobaric multiplet mass equation

Paul¹,

Bergmann²,

Cardona³

et al. 2021

Phys. Rev. C

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“…Details of the operation and performance of the TITAN MR-TOF-MS are summarised in [33]. The device is based on the MR-TOF-MS in operation at the FRS Ion Catcher [34].…”

Section: Methodsmentioning

confidence: 99%

“…Here, m/q is the mass-to-charge ratio, c and t 0 are the calibration parameters, and t is the time of flight between injection into the analyzer and detection. The parameter t 0 is a small offset in timing caused by electronic delays and was determined from the time of flight of 39,41 K peaks undergoing only a time-focus shift turn [33]. It amounted to 209.2(5) ns.…”

Section: Methodsmentioning

confidence: 99%

Summit of the N=40 Island of Inversion: precision mass measurements and ab initio calculations of neutron-rich chromium isotopes

Silwal,

Andreoiu,

Ashrafkhani

et al. 2022

Preprint

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Mass measurements continue to provide invaluable information for elucidating nuclear structure and scenarios of astrophysical interest. The transition region between the Z = 20 and 28 proton shell closures is particularly interesting due to the onset and evolution of nuclear deformation as nuclei become more neutron rich. This provides a critical testing ground for emerging ab-initio nuclear structure models. Here, we present high-precision mass measurements of neutron-rich chromium isotopes using the sensitive electrostatic Multiple-Reflection Time-Of-Flight Mass Spectrometer (MR-TOF-MS) at TRIUMF's Ion Trap for Atomic and Nuclear Science (TITAN) facility. Our high-precision mass measurements of 59,61−63 Cr confirm previous results, and the improved precision in measurements of 64−65 Cr refine the mass surface beyond N=40. With the ab initio in-medium similarity renormalization group, we examine the trends in collectivity in chromium isotopes and give a complete picture of the N=40 island of inversion from calcium to nickel.

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Commissioning and performance of TITAN’s Multiple-Reflection Time-of-Flight Mass-Spectrometer and isobar separator

Cited by 26 publications

References 66 publications

Investigating nuclear structure near N=32 and N=34: Precision mass measurements of neutron-rich Ca, Ti, and V isotopes

Investigating nuclear structure near N=32 and N=34: Precision mass measurements of neutron-rich Ca, Ti, and V isotopes

Mass measurements of Ga60–63 reduce x-ray burst model uncertainties and extend the evaluated T=1 isobaric multiplet mass equation

Summit of the N=40 Island of Inversion: precision mass measurements and ab initio calculations of neutron-rich chromium isotopes

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