in [Minneapolis, Minn .
Written in English
|Statement||by Walter Hauser Brattain.|
|LC Classifications||QC711 .B7 1929|
|The Physical Object|
|Pagination||, 474-485 p.|
|Number of Pages||485|
|LC Control Number||30003425|
under John T. Tate on "Efficiency of Excitation by Elec-tron Impact and Anomalous Scattering in Mercury Vapor." He left in the fall of to take a position at the U.S. National Bureau of Standards, where he spent a year be-fore joining Bell Labs. When Brattain was a graduate student, the revolution in. Electron energy‐loss spectra covering the elastic and inelastic region up to eV were obtained at 20, 30, and eV impact energies at scattering angles ranging from 8° to °. Relative differential elastic scattering cross sections were determined at each impact energy and then, normalized to the absolute scale by utilizing the ° differential cross sections of Tanaka et al Cited by: In this talk I will review the recent progress that has been made in the theoretical determination of differential and integral cross sections for the electronic excitation of molecules by low-energy electrons. Whereas there has been considerable progress in the development and application of theoretical methods for treating inelastic electron-atom scattering , the situation is quite. Download Citation | Electron Impact Excitation | The case study part of this book begins in Sect. with the presentation of a few examples where either unpolarized or spin-polarized electron.
Aug 22, · Relative differential cross sections for elastic scattering and for a number of inelastic processes corresponding to vibrational and vibronic excitation of H2O have been determined at 53, 20, and 15 eV impact energies in the 0°–90° angular judybwolfman.com by: The authors report new differential cross section measurements for electron impact excitation of the A (1)Pi(v(')) states of carbon monoxide. The energy range is eV. The resonant cavity, which is hollow and of the order of a few centimetres diameter, allows coupling of the microwave power into the plasma gas flowing through the capillary discharge tube. The microwave power supply operates at a frequency of GHz. Microwave plasmas can be produced at atmospheric pressure. In this lab you will study the excitation of mercury atoms by colliding electrons with the atoms, This lab will focus on electron collisions in which a free electron gives up just the amount of kinetic energy required to excite a ground state mercury atom into its first excited state. mercury vapor so that collisions between electrons.
In general, the interaction can be elastic or inelastic. The electron impact ionization of atoms is a special case of inelastic scattering which we consider here as an independent process. In an elastic scattering event, the internal state of the target atom remains unchanged. Metastable excitation of mercury by electron impact is studied at energies up to the first ionisation potential using an energy selected electron beam with an energy spread of 50 meV FWHM. A great number of resonances is observed in the excitation judybwolfman.com by: 6. Wallbank B. () Absorption and Emission of Radiation During Electron Excitation of Atoms. In: Hestenes D., Weingartshofer A. (eds) The Electron. Fundamental Theories of Physics (An International Book Series on The Fundamental Theories ofPhysics: Author: Barry Wallbank. Aug 09, · Second, electron impact vibrational excitation is increasingly being recognised as an important driver in many cold plasmas and there is an urgent need for reliable vibrational excitation cross sections for species such as CO 2, which cover an extended range of vibrational states and transitions. Experimental studies on electron-impact Cited by: 1.