title: Installation and operation of a radio-frequency quadrupole cooler and buncher and offline-commissioning of the TRIGA-SPEC ion beam preparation transfer line
creator: Beyer, Thomas
subject: ddc-530
subject: 530 Physics
description: The dominant fraction of elements heavier than iron was created in stellar nucleosynthesis by neutron-capture reactions. The isotopic compositions of these elements are the fingerprints of the involved processes, and a huge amount of experimental data on these isotopes is required to support corresponding astrophysical calculations and models. The TRIGA-SPEC experiment aims to contribute to these data by the measurement of ground-state properties of neutron-rich heavy nuclides. It consists of the Penning-trap mass spectrometer TRIGA-TRAP for the determination of masses, Q-values and binding energies, and the collinear laser spectroscopy setup TRIGALASER for the determination of charge radii, nuclear spins, and moments. The nuclides of interest are produced by neutron-induced fission of an actinide target inside the research reactor TRIGA Mainz and ionized in an online ion source. In the context of this thesis, the two experiments were coupled to the reactor, completing the ion beam preparation transfer line. This included the implementation and commissioning of a radio-frequency quadrupole for the emittance reduction and accumulation of the ions. The functionality of the ion beam preparation was verified by successful test measurements of stable nuclides produced in the online ion source. 
date: 2014
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/17775/1/Beyer_dissertation_2014.pdf
identifier: DOI:10.11588/heidok.00017775
identifier: urn:nbn:de:bsz:16-heidok-177752
identifier:   Beyer, Thomas  (2014) Installation and operation of a radio-frequency quadrupole cooler and buncher and offline-commissioning of the TRIGA-SPEC ion beam preparation transfer line.  [Dissertation]     
relation: https://archiv.ub.uni-heidelberg.de/volltextserver/17775/
rights: info:eu-repo/semantics/openAccess
rights: http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html
language: eng