Electron Energy Loss Spectroscopy (EELS) is a high resolution technique used for the analysis of thin samples of material. The technique is used in many modern transmission electron microscopes to characterise materials. This book provides an up-to-date introduction to the principles and applications of EELS. Specific topics covered include, theory of EELS, elemental quantification, EELS fine structure, EELS imaging and advanced techniques.
Electron Energy Loss Spectroscopy (EELS) is a high resolution technique used for the analysis of thin samples of material. The technique is used in many modern transmission electron microscopes to characterise materials. This book provides an up-to-date introduction to the principles and applications of EELS. Specific topics covered include, theory of EELS, elemental quantification, EELS fine structure, EELS imaging and advanced techniques.
Rik Brydson is a reader in Materials Characterization in the Materials Department at the University of Leeds in the UK. He has extensive experience of the application of microanalysis, particularly EELS, to a large range of chemical, physical, geological and materials problems.
Inhaltsangabe
Abbreviations Preface Acknowledgements 1. Introduction What is EELS? Interaction of electrons with matter Basics of the TEM Comparison of EELS in TEM with other spectroscopies Conclusions References 2. The EEL spectrum The primary transmitted electron signal Historical development Basic components of an EEL spectrum Basic physics Summary of analytical uses References 3. EELS instrumentation and experimental aspects The electron spectrometer Coupling a magnetic spectrometer to the microscope Spectral recording Energy filtered imaging Choice of experimental conditions for EELS Specimen parameters Summary of experimental set up and data acquisition procedures for EELS Summary of data correction procedures for EELS References and further reading 4. Low loss spectroscopy Quantification of sample thickness Quantitative aspects of low loss data Experimental aspects of EELS low loss measurements Conclusions References and further reading 5. Elemental quantification Quantification of EEL spectra Background removal Determination of the ionization cross section Final quantification step Summary of the quantification procedure Summary of experimental quantification parameters Accuracy and detection sensitivity of EELS quantification and comparison with EDX in the TEM References and further reading 6. Fine structure on inner shell ionization edges (ELNESIEXELFS) Origin of edge fine structure Determination of coordinations Determination of valencies Determination of bond lengths Experimental aspects of ELNESIEXELFS measurements Conclusions References and further reading 7. EELS imaging Introduction to EELS imaging and energy filtering Summary of energy filtering techniques Procedure for EFTEM elemental mapping Experimental parameters in EFTEM Correlation of elemental maps General strategy for EFTEM elemental analysis Experimental procedure for EFTEM image acquisition and processing Comparison of EFTEM and spectrum imaging methods Energy filtered tomography Conclusions References and further reading 8. Advanced EELS techniques in the TEM Orientation dependency in EELS Spatially resolved measurements Electron Compton scattering Reflection mode and surface measurements References and further reading 9. Conclusions Further reading Further resources Index.
Abbreviations Preface Acknowledgements 1. Introduction What is EELS? Interaction of electrons with matter Basics of the TEM Comparison of EELS in TEM with other spectroscopies Conclusions References 2. The EEL spectrum The primary transmitted electron signal Historical development Basic components of an EEL spectrum Basic physics Summary of analytical uses References 3. EELS instrumentation and experimental aspects The electron spectrometer Coupling a magnetic spectrometer to the microscope Spectral recording Energy filtered imaging Choice of experimental conditions for EELS Specimen parameters Summary of experimental set up and data acquisition procedures for EELS Summary of data correction procedures for EELS References and further reading 4. Low loss spectroscopy Quantification of sample thickness Quantitative aspects of low loss data Experimental aspects of EELS low loss measurements Conclusions References and further reading 5. Elemental quantification Quantification of EEL spectra Background removal Determination of the ionization cross section Final quantification step Summary of the quantification procedure Summary of experimental quantification parameters Accuracy and detection sensitivity of EELS quantification and comparison with EDX in the TEM References and further reading 6. Fine structure on inner shell ionization edges (ELNESIEXELFS) Origin of edge fine structure Determination of coordinations Determination of valencies Determination of bond lengths Experimental aspects of ELNESIEXELFS measurements Conclusions References and further reading 7. EELS imaging Introduction to EELS imaging and energy filtering Summary of energy filtering techniques Procedure for EFTEM elemental mapping Experimental parameters in EFTEM Correlation of elemental maps General strategy for EFTEM elemental analysis Experimental procedure for EFTEM image acquisition and processing Comparison of EFTEM and spectrum imaging methods Energy filtered tomography Conclusions References and further reading 8. Advanced EELS techniques in the TEM Orientation dependency in EELS Spatially resolved measurements Electron Compton scattering Reflection mode and surface measurements References and further reading 9. Conclusions Further reading Further resources Index.
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