Development and investigation of the forward beam monitor for the KATRIN experiment / vorgelegt von Enrico Ellinger. Wuppertal, April 2019
Inhalt
- Abstract
- Zusammenfassung
- Table of Contents
- Introduction
- 1 Introduction to neutrino mass
- 2 The KATRIN Experiment
- 2.1 MAC-E filter electron spectroscopy
- 2.2 Main Components
- 2.2.1 Tritium source
- 2.2.2 Transport sections (DPS and CPS)
- 2.2.3 Spectrometers
- 2.2.4 Focal plane detector
- 2.2.5 Rear section
- 2.3 Monitoring methods
- 2.4 The concept of the FBM
- 3 The vacuum manipulator
- 3.1 Mechanical setup
- 3.2 The front end
- 3.3 Positioning and controlling
- 3.3.1 Motorization
- 3.3.2 Position detection
- 3.3.3 Control system and interlock
- 3.3.4 Positioning theory
- 3.3.5 Positioning reproducibility
- 3.4 Mechanical integration and alignment
- 3.5 Alignment with magnetic field
- 3.6 Vacuum system and compatibility
- 4 Detector
- 4.1 Interaction of radiation with matter
- 4.2 Silicon detectors
- 4.3 Signal processing
- 4.4 Quality of a detector
- 4.5 The FBM detector
- 4.6 Evaluation of the detector (Part 1)
- 4.7 Temperature dependance
- 4.8 Stability
- 5 Measurements
- 5.1 Radiation sources
- 5.2 Evaluation of the detector (Part 2)
- 5.3 Gaseous 83mKr campaign
- 5.4 Tritium measurement phase
- 5.4.1 Configuration and acceptance test
- 5.4.2 Cool down
- 5.4.3 Tritium spectrum
- 5.4.4 Flux tube scans
- 5.4.5 Rate stability
- 5.5 RS e-gun during STSIIIa
- 5.6 Magnetic field analysis
- 5.7 Temperature dependance of Hall sensor
- 5.8 Rate and magnetic field profile
- 6 Field emission electron gun
- 6.1 Working principle and requirements
- 6.2 Field emission
- 6.3 Tip preparation
- 6.4 Experimental setup
- 6.5 Measurements
- 6.6 Summary and outlook
- 7 Simulations
- 8 Summary and outlook
- A Appendix
- A.1 Thermal simulations
- A.2 Detector boards
- A.3 Radiation sources
- A.4 Electronic schematics and board layouts
- A.5 Technical drawings
- References
- List of Figures
- List of Tables
- Nomenclature