eprintid: 20213
rev_number: 13
eprint_status: archive
userid: 2330
dir: disk0/00/02/02/13
datestamp: 2016-02-09 07:24:12
lastmod: 2016-03-29 12:45:31
status_changed: 2016-02-09 07:24:12
type: doctoralThesis
metadata_visibility: show
creators_name: Becker, Arno
title: Imaging of Neutral Fragmentation Products from Fast Molecular Ion Beams: Paving the Way for Reaction Studies in Cryogenic Environment
title_de: Abbildung neutraler Fragmentationsprodukte von schnellen Molekülionenstrahlen - Wegbereitung für Reaktionsuntersuchungen in kryogener Umgebung
subjects: ddc-530
divisions: i-130001
divisions: i-741010
adv_faculty: af-13
abstract: The focus of this work are experimental studies on dissociative recombination in merged-beams experiments at storage rings. Dissociative recombination of the sulfur hydride cation (SH+) has been investigated at the magnetic Test Storage Ring (TSR) in Heidelberg, Germany. Measurements
of the reaction rate coefficient and momentum spectroscopy of the fragmentation products have been performed. From these, the total reaction cross section and the branching ratios of the different product states were derived. These kind of studies will be continued at the new electrostatic and Cryogenic Storage Ring (CSR) in Heidelberg. Operated at cryogenic temperatures, the vacuum conditions are improved by several orders of magnitude which enables the storage of heavy molecules in their lowest ro-vibrational quantum state. In this way, gas phase processes can be investigated under conditions similar to those found in interstellar media. A new multicoincidence particle imaging detector was developed. For experiments on dissociative recombination in this harsh environment, the detector has been partly simulated, constructed, built and tested.
date: 2016
id_scheme: DOI
id_number: 10.11588/heidok.00020213
ppn_swb: 1656007177
own_urn: urn:nbn:de:bsz:16-heidok-202130
date_accepted: 2016-01-15
advisor: HASH(0x558eaa6b3c48)
language: eng
bibsort: BECKERARNOIMAGINGOFN2016
full_text_status: public
place_of_pub: Heidelberg
citation:   Becker, Arno  (2016) Imaging of Neutral Fragmentation Products from Fast Molecular Ion Beams: Paving the Way for Reaction Studies in Cryogenic Environment.  [Dissertation]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/20213/1/Dissertation_Arno_Becker.pdf