An accurate ultra-low current measurement ASIC for ionization chamber readout / by Sarath Kundumattathil Mohanan. Wuppertal, 2021
Content
- List of Figures
- List of Tables
- List of Abbreviations
- Publications
- Contributions of Others
- Abstract
- Zusammenfassung
- Introduction
- Need for radiation monitoring
- Radiation monitoring system
- Motivation for the research and thesis organization
- Radiation Monitors at CERN
- ARCON
- RAMSES
- CROME
- UTOPIA
- Static characterization of UTOPIA 2
- Dynamic laboratory characterization of UTOPIA 2
- UTOPIA 2 characterization with pulsed radiation
- Conclusion
- State of the Art Low Current Measurement Methods
- Transimpedance amplifiers
- Current conveyors
- Current to frequency conversion
- Current input delta sigma ADC
- Radiation monitoring systems
- Conclusion
- Attaining Femtoampere Sensitivity in 22 nm Technology
- Technology Demonstrator ASIC in 130 nm Technology
- Analysis of different current measurement architectures
- Leakage current evaluation
- System design
- Current measurement limits
- Measurement results
- Leakage current measurements
- Conclusion
- A Single Chip Solution for the Front-End of Ionization Chambers
- System architecture
- Reset generation scheme
- Design flow
- Mixed signal layout
- Measurement set-up and results
- Conclusion
- Characterization of ACCURATE 2
- Measurements with radioactive sources
- Characterization of ACCURATE 2 with pulsed radiation
- Influence of humidity on current measurement
- Influence of temperature on current measurement
- Leakage current measurement at different temperatures
- Temperature dependency for the DSM method
- Stability analysis of the charge quantum
- Conclusion
- Conclusion and outlook
- Bibliography