Spectral Line Broadening by Plasmas - 1st Edition - ISBN: 9780123028501, 9780323150941

Spectral Line Broadening by Plasmas

1st Edition

Authors: Hans Griem
eBook ISBN: 9780323150941
Imprint: Academic Press
Published Date: 28th January 1974
Page Count: 424
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Description

Spectral Line Broadening by Plasmas deals with spectral line broadening by plasmas and covers topics ranging from quasi-static approximation and impact approximation to intermediate approximations and correlation effects. Experimental results for hydrogen lines, lines with forbidden components, and ionized helium lines are presented. Applications such as density and temperature measurements are also considered.

Comprised of four chapters, this volume begins with an overview of the effects of electric fields from electrons and ions (both acting as point charges) on spectral line shapes. The next chapter surveys theoretical work, paying particular attention to quasi-static, impact, and intermediate approximations as well as correlation effects. Stark broadening experiments are then discussed, with special emphasis on experiments capable of checking the accuracy or validity limits of the various approximations. The final chapter is devoted to applications in laboratory plasma physics and astronomy, focusing on density and temperature measurements and opacity calculations as well as the analysis of stellar atmospheres, amplitudes and spectra of plasma waves, and radio frequency lines.

This book should appeal to students, practitioners, and researchers in pure and applied physics.

Table of Contents


Preface

Acknowledgments

List of Symbols

Chapter I Introduction

Chapter II Theory

II.1. General Formulation

II.2. Quasi-Static Approximation

II.2a. Field Strength Distribution Function

II.2b. Perturbation Theory

II.2c. Atomic Matrix Elements

II.3. Impact Approximation

II.3a. Hydrogen Lines

II.3b. Hydrogenic Ion Lines

II.3c. Two- and More-Electron Atoms

II.3d. Two-and More-Electron Ions

II.3e. Quantum-Mechanical Calculations of Electron Impact Broadening

II.3f. Corrections for Ion Broadening of Isolated Lines

II.4. Intermediate Approximations

II.4a. The Phase Integral Method

II.4b. Relaxation Theory

II.4c. Dynamical Corrections to the Holtsmark Theory

II.4d. The One-Electron Approximation

II.5. Correlation Effects

II.5a. Debye Shielding

II.5b. Plasma Polarization Shift

II.5c. Plasma Satellites

II.6. Magnetic Field Effects

Chapter III Experiments

III.1. General Considerations

III.2. Hydrogen Lines

III.2a. The Balmer β Line

III.2b. Other Balmer Lines at High Electron Densities

III.2c. Balmer and Paschen Lines at Low Electron Densities and Temperatures

III.3. Ionized Helium Lines

III.4. Hydrogenic Lines from Heavy Ions

III.5. Lines with Forbidden Components

III.6. Isolated Neutral Atom Lines

III.7. Isolated Lines from Singly Charged Ions

III.8. Isolated Lines from Multiply Charged Ions

III.9. Asymmetries and Shifts of Hydrogen Lines

III.10. Effects of Suprathermal Field Fluctuations

Chapter IV Applications

IV.1. Density Measurements

IV.2. Temperature Measurements

IV.3. Amplitudes and Spectra of Plasma Waves

IV.4. Stellar Atmospheres

IV.4a. Hydrogen and Ionized Helium Lines

IV.4b. Lines with Forbidden Components

IV.4c. Isolated Lines

IV.5. Radio-Frequency Lines

IV.6. Opacity Calculations

Appendix I Stark Profiles for Hydrogen and Ionized Helium Lines

Appendix II Coefficients for the Asymptotic Holtsmark Profiles of Hydrogen Lines

Appendix III Fractional Intensity Widths of Hydrogen and Ionized Helium Lines

Appendix IV Stark Broadening Parameters and Profiles for Isolated Neutral Atom Lines

Appendix V Electron Impact Widths and Shifts of Isolated Lines from Singly Charged Ions

Appendix VI Atomic Parameters for Neutral Helium Lines with Forbidden Components

Appendix VII "Dynamical" Profiles of Forbidden Components

References

Author Index

Subject Index

Details

No. of pages:
424
Language:
English
Copyright:
© Academic Press 1974
Published:
Imprint:
Academic Press
eBook ISBN:
9780323150941

About the Author

Hans Griem