title: Precision mass measurements for studies of nucleosynthesis via the rapid neutron-capture process : penning-trap mass measurements of neutron-rich cadmium and caesium isotopes
creator: Atanasov, Dinko
subject: 520
subject: 520 Astronomy and allied sciences
subject: 530
subject: 530 Physics
description: Although the theory for the rapid neutron-capture process (r-process) was developed more than 55 years ago, the astrophysical site is still under a debate. Theoretical studies predict that the r-process path proceeds through very neutron-rich nuclei with very asymmetric proton-to-neutron ratios. Knowledge about the properties of neutron-rich isotopes found in similar regions of the nuclear chart and furthermore suitable for r-process studies is still little or even not existing. The basic nuclear properties such as binding energies, half-lives, neutron-induced or neutron-capture reaction cross-sections, play an important role in theoretical simulations and can vary or even drastically alternate results of these studies. Therefore, a considerable effort was put forward to access neutron-rich isotopes at radioactive ion-beam facilities like ISOLDE at CERN. The goal of this PhD thesis is to describe the experimental work done for the precision  mass measurements of neutron-rich cadmium (129−131 Cd) and caesium (132,146−148 Cs) isotopes.  Measurements were done at the on-line radioactive ion-beam facility ISOLDE by using the four-trap mass spectrometer ISOLTRAP. The cadmium isotopes are key nuclides for the synthesis of stable isotopes around the mass peak A = 130 in the Solar System abundance.
date: 2016
type: Dissertation
type: info:eu-repo/semantics/doctoralThesis
type: NonPeerReviewed
format: application/pdf
identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/21444/1/main.pdf
identifier: DOI:10.11588/heidok.00021444
identifier: urn:nbn:de:bsz:16-heidok-214444
identifier:   Atanasov, Dinko  (2016) Precision mass measurements for studies of nucleosynthesis via the rapid neutron-capture process : penning-trap mass measurements of neutron-rich cadmium and caesium isotopes.  [Dissertation]     
relation: https://archiv.ub.uni-heidelberg.de/volltextserver/21444/
rights: info:eu-repo/semantics/openAccess
rights: http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html
language: eng