Analysis of excitation and ionization of atoms and molecules by electron impact
type: Item
instance of: scholarly article
title: Analysis of excitation and ionization of atoms and molecules by electron impact
zbMATH Open document ID: 1227.81001
DOI: 10.1007/978-1-4419-6947-7
author: Afzal Chaudhry
author: Hans Kleinpoppen
published in: Springer Series on Atomic, Optical, and Plasma Physics
publication date: 2010-08-11T00:00:00Z
full work available at URL: http://cds.cern.ch/record/1338748
review text: This book treats selectively chosen subjects concerning the investigation of excitation and ionization of atoms and molecules by electron impact, namely: multiple ionization of rare-gas (He, Ar, Kr, and Xe) atoms and of H\(_2\), SO\(_2\), and SH\(_6\) molecules, measurements of partial and total double differential cross sections, electron impact excitation and polarization measurements for He I 3 \(^{1,3}\)P states of He, excitation function and polarization of the Ca II line of wavelength 393.3 nm and absolute cross section for the Ca II 4 \(^2P_1/2\) state of Ca, and polarization measurements for the excitation of the Sr I 5 \(^1\)P state of Sr and for the Na and K atoms. In the ``Introduction'' chapter, the authors briefly review the topics covered in the book. The next chapter, entitled ``Theoretical approaches'', introduces the measured physical quantities, e.g., partial and total double differential cross sections (PDDCS and DDCS, respectively) or Stokes polarization parameters, including also some basics about atomic transitions, and gives a short inventory of the theoretical models. The next two chapters, devoted to the experimental apparatus and techniques, contain a detailed presentation of the instrumentation and experimental methods used by the authors. A crossed-beam arrangement was used, where the focused beam of energetic electrons is allowed to interact with a beam of atoms or molecules emitted by the beam source (a capillary array for gases or an oven for Na, K, Ca, and Sr atoms). For the investigation of the ionization of atomic (He, Ar, Kr) and molecular (H\(_2\), SO\(_2\) and SF\(_6\)) gases, as well as the excitation of He, Ca and Sr atoms, electron analyzers and ion time-of-flight (TOF) analyzers or photon detectors have been introduced into ion-electron or photon-electron electronic coincidence circuits; in the case of Xe, an X-ray-ion electronic coincidence circuit was used. The parts of the experimental setup (electron and TOF ion analyzers…
reviewed by: Serban Misicu
Mathematics Subject Classification ID: 81-02
Mathematics Subject Classification ID: 81V45
Mathematics Subject Classification ID: 81U35
Mathematics Subject Classification ID: 81V55
zbMATH DE Number: 5768472
zbMATH Keywords: atomic ionization
zbMATH Keywords: rare gases
zbMATH Keywords: hyperfine structure
zbMATH Keywords: electron impact
MaRDI profile type: Publication
OpenAlex ID: W1590629201
description: scientific article; zbMATH DE number 5768472