Mass measurement of cooled neutron-deficient bismuth projectile fragments with time-resolved Schottky mass spectrometry at the FRS-ESR facility

摘要

Masses of 582 neutron-deficient nuclides (30 <= Z <= 85) were measured with time-resolved Schottky mass spectrometry at the FRS-ESR facility at GSI, 117 were used for calibration. The masses of 71 nuclides were obtained for the first time. A typical mass accuracy of 30 mu u was achieved. These data have entered the latest atomic mass evaluation. The mass determination of about 140 additional nuclides was possible via known energies (Q-values) of alpha-, beta-, or proton decays. The obtained results are compared with the results of other measurements. (c) 2005 Elsevier B.V. All rights reserved.