22–26 Sept 2025
Moho
Europe/Paris timezone

Nuclear structure and astrophysics studies with TITAN’s Multiple-Reflection Time-Of-Flight Mass Spectrometer

Not scheduled
20m
Moho

Moho

16 bis Quai Hamelin 14000 CAEN
Oral Presentation Nuclear Astrophysics Parallel session

Speaker

Dr Ali Mollaebrahimi (GSI Helmholtz Centre)

Description

TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN) specializes in high-precision measurements and isobaric separation of exotic nuclei using advanced electromagnetic traps. These precise mass measurements are crucial for investigating nuclear structure and studying astrophysical processes involving isotopes far from the valley of stability.
TITAN’s Multiple-Reflection Time-of-Flight Mass Spectrometer (MR-TOF-MS) enables the study of short-lived and rare nuclei through its fast measurement cycles (on the order of milliseconds) and exceptional sensitivity. This presentation highlights recent developments and experimental results achieved with the MR-TOF-MS at TITAN. The recent results include first-time mass measurement of neutron-rich $^{83}$Zn and $^{86}$Ga nuclei near neutron shell closure of $N=50$ and $^{136-138}$Sn isotopes near $N=82$ and their implications for studying the 1$^{st}$ and 2$^{nd}$ abundance peaks in the rapid neutron capture process (r-process) [1,2].

[1] A. Jacobs et al., Physical Review Letters 134 (2025)
[2] A. Mollaebrahimi et al., Physical Review Letters (under review)

Author

Dr Ali Mollaebrahimi (GSI Helmholtz Centre)

Co-authors

Dr A. A. Kwiatkowski (University of Victoria) Dr A. Jacobs (TRIUMF) Dr A. Sieverding (Lawrence Livermore National Laboratory) Dr C. Chambers (TRIUMF) Prof. C. Scheidenberger (GSI Helmholtz Centre) Mr C. Walls (TRIUMF) Moritz Pascal Reiter (University of Edinburgh) Dr S. Nikas (University of Jyvaskyla) Dr T. Miyagi (Technische Universität Darmstadt) Timo Dickel (GSI Helmholtzzentrum für Schwerionenforschung)

Presentation materials

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