Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Electronic and Ionic Impact Phenomena
Author: Swarms of Ions and Electrons in Gases
Author: W. LindingerPublisher: Springer Science & Business Media
ISBN: 3709187737
Category : Science
Languages : en
Pages : 319
Book Description
Our understanding of elementary processes in plasmas has been increasing dramatically over the last few years. The development of various swarm techniques, such as the temperature variable selected ion flow tube or the selected ion flow drift tube, has provided the prerequisite for detailed investigations into ion molecule reactions both in binary and three body collisions, and the mechanisms of many reactions are now understood quite satisfactorily. This information could not have been obtained without a detailed knowledge of the transport phenomena involved. Some of these, such as the internal-energy distribution of drifting ions, have only very recently been tackled both theoretically and experimentally; a consistent model is now being developed. As the interactions between the various branches of swarm research have become more and more intense, the most obvious thing to do was putting together a review on the present state of this subject, which is the aim of this book.
Special Topics
Author: H. S. W. MasseyPublisher: Academic Press
ISBN: 148328171X
Category : Science
Languages : en
Pages : 464
Book Description
Applied Atomic Collision Physics, Volume 5: Special Topics deals with topics on applications of atomic collisions that were not covered in the first four volumes of the treatise. The book opens with a chapter on ultrasensitive chemical detectors. This is followed by separate chapters on lighting, magnetohydrodynamic electrical power generation, gas breakdown and high voltage insulating gases, thermionic energy converters, and charged particle detectors. Subsequent chapters deal with the operation of multiwire drift and proportional chambers and streamer chambers and their use in high energy physics experiments; photoelectron spectroscopy of negative ions and the chemical information that can be obtained from such studies; and the determination of intermolecular potentials. Also discussed are studies on the determination of ion molecular potential curves using photodissociative processes; determination of negative ion thermo chemical data using ion-neutral reactions; gas-phase chemical reactions; collision phenomena in electrical discharge lamps; and military applications of atomic and molecular physics.
Nuclear Science Abstracts
Author: Advances in Atomic and Molecular Physics
Author: Publisher: Academic Press
ISBN: 0080564755
Category : Science
Languages : en
Pages : 565
Book Description
Advances in Atomic and Molecular Physics
NASA Technical Note
Author: Atomic and Electron Physics
Author: Publisher: Academic Press
ISBN: 0080859836
Category : Science
Languages : en
Pages : 525
Book Description
Atomic and Electron Physics
Electron-Molecule Interactions and Their Applications
Author: L ChristophorouPublisher: Elsevier
ISBN: 0323143016
Category : Science
Languages : en
Pages : 716
Book Description
Electron-Molecule Interactions and Their Applications, Volume 1 presents a comprehensive account of electron-molecule interactions in high- and ultra-high-pressure gases and liquids. Topics covered include elastic scattering of electrons by molecules; excitation, ionization, and dissociation of molecules by electron impact; electron-molecule resonances; and electron attachment and detachment processes. This volume is comprised of seven chapters and begins with a discussion on non-resonant elastic scattering and rotational excitation of molecules by electrons, followed by a review of non-resonant vibrational and electronic excitation. The reader is then introduced to resonance effects in electron scattering; electron-induced ionization and dissociation of molecules; and electron-molecule resonances. The ionization mechanisms and types of ions produced are highlighted, along with differential ionization cross sections. The final two chapters focus on electron attachment and detachment processes, paying particular attention to modes of electron capture by molecules such as via negative-ion resonant states. The collisional dynamics for a few selected atomic reactants are also described. Physicists will find this book extremely helpful.
Collision Processes Of Ion, Positron, Electron And Photon Beams With Matter - Proceedings Of Elaf 91
Author: Ana Cecilia De Azevedo E SouzaPublisher: World Scientific
ISBN: 9814555355
Category :
Languages : en
Pages : 514
Book Description
The proceedings contain lectures and contributed papers presented at the Latin American School of Physics in Caxambu, Brazil. Topics are related to a review of collision processes, excitation and ionization of molecules, ion formation by electron impact, mass and energy spectroscopy in collision reactions, desorption induced by ion and electron beams, and principles and applications of synchrotron radiation. The major theme of the school was “Current methods in collision processes.”
Electron Transport in a Dilute Weakly Ionized Gas Application to a Model Ionosphere
Author: John R. JaspersePublisher:
ISBN:
Category : Atmospheric chemistry
Languages : en
Pages : 60
Book Description
The author presents a kinetic model for the electron distribution function in micro-space in a dilute, nonuniform, weakly ionized gas. The model includes photoproduction of electron-ion pairs, electron-ion recombination, and elastic, inelastic, and ionizing electron-neutral collisions. Under special conditions exact solutions are found for the steady-state electron velocity spectrum in a uniform, infinite medium for a delta-function photon energy source, and for an exponentially decreasing photon energy source. Also presented is a general method for finding the electron distribution function in a plane-parallel medium where the neutral gas density varies exponentially with position. The method is applied to give an approximation to the electron-ion concentration, the electron-ion drift velocity, and the electron temperature for a model ionosphere at altitudes where the assumption of weak ionization is valid. (Author).