Laser Assisted Nuclear Decay Spectroscopy (eBook)

A New Method for Studying Neutron-Deficient Francium Isotopes

Kara Marie Lynch (Autor)

eBook Download: PDF

2014 | 2015
XIII, 131 Seiten
Springer International Publishing (Verlag)
978-3-319-07112-1 (ISBN)

Infos

This work details an application of collinear resonance ionization spectroscopy for the separation of short-lived isomeric states and their subsequent study with decay spectroscopy. It reports the successful construction of a novel decay spectroscopy apparatus that can operate at pressures below 1 x 10^-9 mbar. The method is demonstrated by separating the nuclear ground and isomeric states of 204Fr and performing alpha-decay spectroscopy. An equivalent mass spectrometer would require 4.6 million times as much resolution to achieve the same result. This work unambiguously confirms the existence of a second isomeric state in 204Fr. The author also demonstrates the effectiveness of this method for laser spectroscopy and identification of hyperfine-structure components with energy tagging. This method was successfully used in 202Fr to identify ground and isomeric states. The measurement of 202Fr reported in this thesis demonstrates a factor of 100 improvement in sensitivity compared to state-of-the-art fluorescence techniques. The work reported in this thesis won the author the IOP Nuclear Physics Group Early Career Prize.

Inhalt

Theoretical Considerations for Laser Spectroscopy.- Theoretical Considerations for Nuclear Decay Spectroscopy.- Experimental Setup at ISOLDE.- Collinear Resonance Ionization Spectroscopy.- Laser Assisted Nuclear Decay Spectroscopy.- Spectroscopic Studies of neutron-Deficient Francium.- Interpretation of Results.

Produkt-Details

• Erscheint lt. Verlag: 16.7.2014
• Reihe/Serie: Springer Theses
• Reihe/Serie: Springer Theses
• Zusatzinfo: XIII, 131 p. 95 illus., 46 illus. in color.
• Verlagsort: Cham
• Sprache: englisch
• Themenwelt: Naturwissenschaften ► Physik / Astronomie ► Atom- / Kern- / Molekularphysik
• Themenwelt: Technik
• Schlagworte: Alpha Decay Spectroscopy • Collinear Resonance Ionization Spectroscopy • Cris • Francium Isotopes • ISOLDE at CERN • Laser Spectroscopy in Nuclear Physics • Nuclear State Spectroscopy
• ISBN-10: 3-319-07112-2 / 3319071122
• ISBN-13: 978-3-319-07112-1 / 9783319071121