Laser Assisted Nuclear Decay Spectroscopy: A New Method for Studying Neutron-Deficient Francium Isotopes (Paperback) (ISBN-13: 9783319361383)

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.

Author: Kara Marie Lynch
ISBN-10: 3319361384
ISBN-13: 9783319361383
Publisher: Springer
Language: English
Published: 09/10/2016
Pages: 131
Format: Paperback
Weight: 0.48lbs
Size: 9.21h x 6.14w x 0.32d