Direct high-precision mass measurements on Am 241,243, Pu 244, and Cf 249

M. Eibach, T. Beyer, K. Blaum, M. Block, Ch E. Düllmann, K. Eberhardt, J. Grund, S. Nagy, H. Nitsche, W. Nörtershäuser, D. Renisch, K. P. Rykaczewski, F. Schneider, C. Smorra, J. Vieten, M. Wang, K. Wendt

Research output: Contribution to journalArticle

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Abstract

The absolute masses of four long-lived transuranium nuclides, Am241,243, Pu244, Pu244, and Cf249, in the vicinity of the deformed N=152 neutron shell closure have been measured directly with the Penning-trap mass spectrometer TRIGA-TRAP. Our measurements confirm the AME2012 mass values of Am241,243 and Pu244 within one standard deviation, which were indirectly determined, by decay spectroscopy studies. In the case of the Cf249 mass, a discrepancy of more than three standard deviations has been observed, affecting absolute masses even in the superheavy element region. The implementation of the mass values into the AME2012 network yields a reduced mass uncertainty for 84 nuclides, particularly for Pu244 and its strongly correlated α decay chains.

Original languageEnglish
Article number064318
JournalPhysical Review C - Nuclear Physics
Volume89
Issue number6
DOIs
Publication statusPublished - Jun 26 2014

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nuclides
standard deviation
decay
mass spectrometers
closures
traps
neutrons
spectroscopy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Eibach, M., Beyer, T., Blaum, K., Block, M., Düllmann, C. E., Eberhardt, K., ... Wendt, K. (2014). Direct high-precision mass measurements on Am 241,243, Pu 244, and Cf 249. Physical Review C - Nuclear Physics, 89(6), [064318]. https://doi.org/10.1103/PhysRevC.89.064318

Direct high-precision mass measurements on Am 241,243, Pu 244, and Cf 249. / Eibach, M.; Beyer, T.; Blaum, K.; Block, M.; Düllmann, Ch E.; Eberhardt, K.; Grund, J.; Nagy, S.; Nitsche, H.; Nörtershäuser, W.; Renisch, D.; Rykaczewski, K. P.; Schneider, F.; Smorra, C.; Vieten, J.; Wang, M.; Wendt, K.

In: Physical Review C - Nuclear Physics, Vol. 89, No. 6, 064318, 26.06.2014.

Research output: Contribution to journalArticle

Eibach, M, Beyer, T, Blaum, K, Block, M, Düllmann, CE, Eberhardt, K, Grund, J, Nagy, S, Nitsche, H, Nörtershäuser, W, Renisch, D, Rykaczewski, KP, Schneider, F, Smorra, C, Vieten, J, Wang, M & Wendt, K 2014, 'Direct high-precision mass measurements on Am 241,243, Pu 244, and Cf 249', Physical Review C - Nuclear Physics, vol. 89, no. 6, 064318. https://doi.org/10.1103/PhysRevC.89.064318
Eibach M, Beyer T, Blaum K, Block M, Düllmann CE, Eberhardt K et al. Direct high-precision mass measurements on Am 241,243, Pu 244, and Cf 249. Physical Review C - Nuclear Physics. 2014 Jun 26;89(6). 064318. https://doi.org/10.1103/PhysRevC.89.064318
Eibach, M. ; Beyer, T. ; Blaum, K. ; Block, M. ; Düllmann, Ch E. ; Eberhardt, K. ; Grund, J. ; Nagy, S. ; Nitsche, H. ; Nörtershäuser, W. ; Renisch, D. ; Rykaczewski, K. P. ; Schneider, F. ; Smorra, C. ; Vieten, J. ; Wang, M. ; Wendt, K. / Direct high-precision mass measurements on Am 241,243, Pu 244, and Cf 249. In: Physical Review C - Nuclear Physics. 2014 ; Vol. 89, No. 6.
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