Handbook of Ionization Spectra
CONTENT
PREFACE
 
1. PHYSICAL ASPECTS OF IONIZATION SPECTROSCOPY TECHNIQUE
1.1. The nature of ionization spectra
1.2. The role of elastic scattering in ionization spectrum formation for reflection geometry
1.3. Inelastic electron scattering
1.4. IL contour
1.5. Fine structure of ionization spectrum
1.6. Ionization losses
1.7. Opportunities of ionization spectroscopy
 
2. IONIZATION SPECTROSCOPY EQUIPMENT
2.1. Electron spectrometer
2.2. Electron gun
 
3. IL DETECTION
3.1. Detection specifics
3.2. Acceleration voltage fluctuations
3.3. Auger lines suppression
 
4. ADJUSTMENT OF SPECTROMETER'S ELECTRON OPTICS
 
5. SPECTROMETER CALIBRATION
5.1. The goal of calibration
5.2. Calibration of kinetic energy scale
5.3. Electron energy loss scale
5.4. Inspection of spectrometer’s adjustment and calibration
 
6. INTENSITY OF IONIZATION LINES
6.1. IL intensity
6.2. Primary electron energy selection
 
7. SURFACE ANALYSIS BY MEANS OF IS
7.1. Qualitative composition analysis technique
7.2. Standard samples technique
7.3. Elemental sensitivity coefficients technique
7.4. Analysis depth
7.5. Investigation of chemical bonding between the atoms
 
References
Ionisation Spectroscopy: Physical Background and Usage (Contents) On-line Library of IS spectra Info System Software and Library   About Authors

1. PHYSICAL ASPECTS OF IONIZATION SPECTROSCOPY TECHNIQUE

1.2. The role of elastic scattering in ionization spectrum formation for reflection geometry

In the reflection geometry the primary electron must change its initial direction of movement by an angle usually greater than 90 in order to leave the solid body after the deltaE energy loss. This can happen either directly in the act of core level excitation (single stage model of IL formation), or as a result of one or several elastic collisions of the electron on the atoms in the sample (two stage model). These models were inspected experimentally [Ref 4]. It was shown that, the major role in reflective ionization spectrum formation belongs to the processes of elastic electron scattering. There is a review by Nakhodkin N.G. and Melnik P.V. devoted to elastic scattering [Ref 6].


Look further: 1.3. Inelastic electron scattering

"Handbook of Ionization Spectra"
ISBN 966-02-1954-7
© T. Afanasieva, I. Koval,V. Lysenko, P. Mel'nik, N. Nakhodkin, M. Pyatnitsky
Ukrainian National Academy of Science, Ukrainian Ministry of Education and Science
Taras Schevchenko University, Radiophysical department
tel.: +38(044)526-05-60
e-mail: afanasieva@univ.kiev.ua