Spectroscopy along Decay Chains of Element 114, Flerovium
Author
Summary, in English
The papers included in this thesis cover various aspects of the flerovium experiment. The chapters complement the publications with background information and further details. They include an introduction to the research field of superheavy nuclei, detector development efforts, a description of the experimental setup as well as information on the data analysis and the simulations performed. The chapters also provide a summary of the main results and overarching outlook perspectives.
In Paper I, the processing of digitised silicon preamplifier signals were applied to short-lived α-decaying nuclei North-East of Pb. Further preparatory aspects of the experiment as well as applied spectroscopic tools, are covered in Paper III. The TASISpec decay station was upgraded with novel Compex germanium detectors, and their characterisation is given in Paper II. Paper V presents detailed information on the data analysis and statistical assessments applied to the flerovium decay chains. Highlights from the even-even Fl-decay chains are presented in Paper IV and as a press release in Paper VII. Finally, the main findings of the odd-A, 289Fl, decay chains form Paper VI.
Department/s
Publishing year
2021
Language
English
Full text
- Available as PDF - 22 MB
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Document type
Dissertation
Publisher
Lund University
Topic
- Subatomic Physics
Keywords
- Superheavy elements
- Flerovium
- Nuclear Structure
- Spectroscopy
- Alpha decay
- Electromagnetic decay
- Spontaneous fission
- Germanium detectors
- Fysicumarkivet A:2021:Såmark-Roth
Status
Published
Project
- Spectroscopy along Decay Chains of Element 114, Flerovium
Supervisor
ISBN/ISSN/Other
- ISBN: 978-91-7895-835-1
- ISBN: 978-91-7895-836-8
Defence date
18 June 2021
Defence time
13:15
Defence place
Rydbergsalen, Fysikum, Lunds universitet Join via zoom: https://lu-se.zoom.us/j/67696180840?pwd=U3ZZUWFxTlYybElPU1lLYVdqMmtBZz09 passcode 2020
Opponent
- Piet van Duppen (Professor)