DESIGN AND CONSTRUCTION OF APPARATUS FOR ELECTRON SCATTERING MEASUREMENTS
Abstract
Two types of beam-beam interaction experiments were considered in detail. (1) A powerful method of studying low energy 2-body reactions by means of the superposition of 2 intense reactant beams of low relative velocity was conceived and investigated. The mathematical problem of data reduction was found to be tractable. The experimental techniques and apparatus required for the study of ion-atom interchange reactions were considered to be feasible. (2) The important class of interactions involving the scattering of low-energy electrons from transitory atomic systems was also considered. A crossed beam experiment for the determination of absolute differential cross sections for scattering of slow electrons was examined in detail. Feasible techniques of noise reduction were evolved, and the necessary equipment to measure elastic scattering by atomic oxygen and nitrogen was found to be completely within present technical capability. An apparatus was designed for the measurement of absolute elastic and inelastic differential scattering cross sections at electron energies ranging from a few tenths of an ev to several hundred ev. Moreover, the apparatus was designed to accept target species provided not only by fast beams but also by thermal beams and static gases. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 22, 1961
- Accession Number
- AD0259545
Entities
People
- Charles J. Cook
- Donald C. Lorents
Organizations
- SRI International