This thesis reports results of precision mass spectrometry of exotic nuclides as a means of elucidating their structure. The work was performed with the ISOLTRAP spectrometer at CERN’s ISOLDE facility. The author furthermore offers an overview of existing techniques used in Penning-trap mass spectrometry and also reports on recent promising developments regarding ISOLTRAP. This eloquently written treatment covers both theory and experiment, and includes a general phenomenological introduction to the nuclear-structure intuition contained in the trends of nuclear binding energies.
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1 | (20) |
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1.1 Trends of Binding Energies |
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1 | (3) |
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4 | (12) |
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1.2.1 Estimators of the Single-Particle Energies |
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4 | (7) |
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1.2.2 Estimators of the Odd-Even Staggering |
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11 | (2) |
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13 | (3) |
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1.3 Complementary Nuclear Data |
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16 | (5) |
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19 | (2) |
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2 Experimental Method and Data Analysis |
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21 | (40) |
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2.1 Charged-Particle Traps |
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21 | (1) |
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22 | (9) |
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2.2.1 Dynamics of a Trapped Ion |
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22 | (3) |
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2.2.2 Driving the Ion's Motion |
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25 | (2) |
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2.2.3 Detecting the Ion's Motion |
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27 | (4) |
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2.3 From Cyclotron Frequency to Mass: Procedure, Precision, Systematic Errors |
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31 | (5) |
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2.4 Production and Preparation of the Ion Ensemble |
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36 | (8) |
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2.5 Complementary Applications of the MR-TOF MS |
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44 | (3) |
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47 | (14) |
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2.6.1 Neutron-Rich Rubidium Isotopes |
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47 | (5) |
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2.6.2 Neutron-Deficient Gold Isotopes |
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52 | (5) |
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57 | (4) |
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3 Nuclear-Theory Concepts |
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61 | (22) |
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3.1 Many-Body Calculations |
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61 | (2) |
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3.2 The Hartree-Fock-Bogoliubov Approach |
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63 | (6) |
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63 | (3) |
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66 | (3) |
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3.3 Competition Between Particle-Particle and Particle-Hole Correlations in Nuclei |
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69 | (2) |
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3.4 Theoretical Analysis of the Measured Nuclear Data |
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71 | (12) |
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71 | (2) |
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73 | (2) |
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3.4.3 Tests of the Method |
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75 | (5) |
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80 | (3) |
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4 Self-consistent Mean-Field Calculations |
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83 | (26) |
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4.1 Neutron-Rich A 100 Nuclei |
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83 | (9) |
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4.2 Neutron-Deficient Gold-Thallium Nuclei |
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92 | (7) |
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4.3 Odd-Even Staggering of Mercury Isotopes |
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99 | (4) |
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103 | (6) |
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107 | (2) |
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5 Conclusions and Outlook |
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109 | (4) |
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112 | (1) |
| Appendix A Finite-Difference Operators |
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113 | (4) |
| Appendix B Motion of a Charged Particle in a Penning Trap |
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Vladimir Manea received his physics bachelor degree from the University of Bucharest in 2010. He then followed the master courses of Université Paris-Sud in Orsay, from which in 2011 he received a three-year PhD scholarship to work on mass spectrometry in the nuclear-structure group of Centre de Sciences Nucléaires et de Sciences de la Matière, Orsay. His PhD research took place at CERN in the ISOLDE laboratory, where he performed Penning-trap mass spectrometry of radioactive nuclides with the ISOLTRAP setup. Since his PhD graduation in 2014 he continues at ISOLTRAP as a postdoc of the Max Planck Institute for Nuclear Physics, Heidelberg.
