Comprehensive mass measurement study of ${}^{252}$Cf fission fragments with MRTOF-MS and detailed study of masses of neutron-rich Ce isotopes (2402.03873v2)
Abstract: We report the mass measurements of neutron-rich isotopes produced via spontaneous fission of ${}{252}$Cf using a multi-reflection time-of-flight mass spectrograph. The mass of ${}{155}$Ce is determined experimentally for the first time. A discrepancy between the experimental and literature values was found for the mass of ${}{127}$Sb, which was previously deduced through indirect measurements. In comparison with several theoretical predictions, both the values and the trend of the mass excesses of ${}{152-155}$Ce cannot be consistently explained. The wide-range and simultaneous mass measurements of the multi-reflection time-of-flight mass spectrograph enable us to cross-check the existing mass data, and the conflict between the measured time-of-flight ratio and the extracted mass would imply the necessity of reexamining them.
- J. Katakura, Jendl fp decay data file 2011 and fission yields data file 2011, in JAEA-Data/Code 2011-025 (2012).
- D. Lunney, J. M. Pearson, and C. Thibault, Rev. Mod. Phys. 75, 1021 (2003).
- H. Schatz, International Journal of Mass Spectroscopy 349–350, 181 (2013).
- Y. Ito, Ph.D. thesis, University of Tsukuba (2013).
- K. Lan and J. W. Jorgenson, Journal of Chromatography A 915, 1 (2001).
- R. Ragaini, G. Gordon, and W. Walters, Nuclear Physics A 99, 547 (1967).
- S. Goriely, N. Chamel, and J. M. Pearson, Phys. Rev. C 88, 024308 (2013).
- Z. M. Niu and H. Z. Liang, Phys. Rev. C 106, L021303 (2022).
Paper Prompts
Sign up for free to create and run prompts on this paper using GPT-5.
Top Community Prompts
Collections
Sign up for free to add this paper to one or more collections.