Authors:	Chrysalidis, Katerina
Title:	Improving the Spectral Coverage and Resolution of the ISOLDE RILIS
Online publication date:	8-Dec-2019
Year of first publication:	2019
Language:	english
Abstract:	This thesis concerns applications and developments of the Resonance Ionization Laser Ion Source (RILIS) at CERN-ISOLDE for ion beam production and laser spectroscopy. Laser developments, including the first operation of a grating-tuned Ti:sapphire combined with a thick etalon for linewidth reduction, the construction and characterization of a seeded Ti:sapphire ring cavity laser and the first demonstration of a Raman laser in the blue spectral range are presented. In-source laser spectroscopy on Dy isotopes has been performed, providing a valuable insight into the nuclear charge radii systematics near proton number Z=64. This work also illustrates the resolution limit imposed by Doppler-broadening of the atomic spectral lines inside the ion source. Addressing this limitation, the Doppler-free 2-photon ionization technique has been developed, leading to its first successful "in-source" application. The future of this approach to significantly increase the spectral resolution of RILIS is discussed.
DDC:	530 Physik 530 Physics
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 08 Physik, Mathematik u. Informatik
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-3575
URN:	urn:nbn:de:hebis:77-diss-1000032021
Version:	Original work
Publication type:	Dissertation
License:	In Copyright
Information on rights of use:	https://rightsstatements.org/vocab/InC/1.0/
Extent:	xii, 167 Seiten
Appears in collections:	JGU-Publikationen