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Journal articles
Direct high-precision mass measurements on Am-241,Am-243, Pu-244, and Cf-249
Abstract : The absolute masses of four long-lived transuranium nuclides, Am-241,Am-243, Pu-244, and Cf-249, 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 241,243Am and 244Pu within one standard deviation, which were indirectly determined, by decay spectroscopy studies. In the case of the Cf-249 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 Pu-244 and its strongly correlated a decay chains.
http://hal.in2p3.fr/in2p3-01057976
Contributor : Christine Hadrossek <>
Submitted on : Monday, August 25, 2014 - 5:27:19 PM
Last modification on : Wednesday, September 16, 2020 - 5:43:39 PM
Contributor : Christine Hadrossek <>
Submitted on : Monday, August 25, 2014 - 5:27:19 PM
Last modification on : Wednesday, September 16, 2020 - 5:43:39 PM