Accurate Calibration of Raman Systems

At the Karlsruhe Tritium Neutrino Experiment

  • Magnus Schlösser
Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xii
  2. Magnus Schlösser
    Pages 1-30
  3. Magnus Schlösser
    Pages 31-51
  4. Magnus Schlösser
    Pages 53-74
  5. Magnus Schlösser
    Pages 75-100
  6. Magnus Schlösser
    Pages 171-175
  7. Magnus Schlösser
    Pages 177-182
  8. Back Matter
    Pages 183-225

About this book

Introduction

Neutrinos can arguably be labeled as the most fascinating elementary particles known as their small but non-zero rest mass points to new mass generating mechanisms beyond the Standard Model, and also assigns primordial neutrinos from the Big Bang a distinct role in shaping the evolution of large-scale structures in the universe. The open question of the absolute neutrino mass scale will be addressed by the Karlsruhe Tritium Neutrino (KATRIN) experiment, currently under construction.
This thesis reports major contributions to developing and implementing new laser-spectroscopic precision tools to continuously monitor the isotope content of the windowless gaseous tritium source of KATRIN. The method of choice, Raman spectroscopy, is ideally suited for in-situ monitoring of all six hydrogen isotopologues. In a series of beautiful experiments the author obtained two independent novel calibration methods, first based on a comparison of experimental Raman depolarization ratios with corresponding quantum-chemical calculations, and second on a gas sampling technique. Both methods yield consistent cross-calibration results and, as well as yielding improvements in precision, will be of major importance in reducing systematic effects in long-term neutrino mass measurements. The methods developed in this thesis also have great potential to further broaden the applications of Raman spectroscopy to study extended sources such as in atmospheric physics. 

Keywords

Absolute Calibration Hydrogen Isotopologues KATRIN Experiment Karlsruhe Tritium Neutrino Experiment Measurement of Isotopic Purity Neutrino Mass Measurement Outstanding PhD Thesis Quantitative Raman Spectroscopy Tritium Beta Decay

Authors and affiliations

  • Magnus Schlösser
    • 1
  1. 1.Tritium Laboratory KarlsruheKarlsruhe Institute of Technology Institute for Technical PhysicsEggenstein-LeopoldshafenGermany

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-319-06221-1
  • Copyright Information Springer International Publishing Switzerland 2014
  • Publisher Name Springer, Cham
  • eBook Packages Physics and Astronomy
  • Print ISBN 978-3-319-06220-4
  • Online ISBN 978-3-319-06221-1
  • Series Print ISSN 2190-5053
  • Series Online ISSN 2190-5061
  • About this book