eprintid: 30259
rev_number: 17
eprint_status: archive
userid: 6036
dir: disk0/00/03/02/59
datestamp: 2021-07-27 13:11:22
lastmod: 2021-08-17 12:58:43
status_changed: 2021-07-27 13:11:22
type: doctoralThesis
metadata_visibility: show
creators_name: Varga, László
title: Proton capture measurements on stored ions for the γ-process nucleosynthesis
subjects: 500
subjects: 530
divisions: 130001
adv_faculty: af-13
cterms_swd: proton capture
cterms_swd: storage ring
cterms_swd: γ-process nucleosynthesis
cterms_swd: p-process
cterms_swd: GSI
cterms_swd: Experimental Storage Ring
cterms_swd: ESR
abstract: The cross sections of proton-capture reactions are extremely important to model explosive nucleosynthesis, in particular for the poorly understood production of the rare p-nuclei. Taking advantage of the unique possibilities at the Experimental Storage Ring (ESR) at GSI, the so-called proton-capture campaign has been started in 2009 focusing on the study of (p,γ) reactions for hot, explosive stellar scenarios.
In this thesis, the recent experiment of the campaign, performed in March 2020, is analyzed and discussed in detail. The (p,γ) and (p,n) reaction cross-sections have been successfully measured at 10 MeV/u using a stable 124Xe ion beam and for the first time also using a radioactive ion beam, namely 118Te with 6 days half-life.
In addition, a novel experimental scheme to improve the sensitivity of the method has been developed. Using the stable 124Xe beam it is demonstrated that the application of this new technique enables measurement at maximum sensitivity for proton-induced reactions in inverse kinematics.
date: 2021
id_scheme: DOI
id_number: 10.11588/heidok.00030259
ppn_swb: 1765589657
own_urn: urn:nbn:de:bsz:16-heidok-302594
date_accepted: 2021-07-15
advisor: HASH(0x564e1c4ecd60)
language: eng
bibsort: VARGALASZLPROTONCAPT2021
full_text_status: public
place_of_pub: Heidelberg
citation:   Varga, László  (2021) Proton capture measurements on stored ions for the γ-process nucleosynthesis.  [Dissertation]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/30259/1/PhD_dissertation_Laszlo_Varga.pdf