Accession Number : AD0681158

Title :   EXPERIMENTAL DETERMINATION OF THE CROSS SECTIONS FOR NEUTRAL BREMSSTRAHLUNG. I. Ne, Ar, AND Xe.

Descriptive Note : Research rept.,

Corporate Author : AVCO EVERETT RESEARCH LAB EVERETT MASS

Personal Author(s) : Taylor,Raymond L. ; Caledonia,George

Report Date : NOV 1968

Pagination or Media Count : 54

Abstract : Experimental measurements of the cross sections for radiative scattering of electrons from the neutral species Ne, Ar and Xe have been obtained. The experiments were performed in shock-heated gases from 8000-15,000 degrees K using a rapid scanning spectrometer to measure the absolute intensity of the neutral Bremsstrahlung continuum over the wavelength interval of 2.0 - 5.4 microns in the infrared. The data have been analyzed to obtain the effective nuclear charge squared (Z sub i) squared, of the species i, doing the scattering using a modified form of the Kramers-Unsold equation, and to obtain the radiative absorption cross section Qa sub i. Experimental information on the temperature and wavelength dependence of the neutral Bremsstrahlung has been determined. The experimental Qa's have been compared with calculations based on a simple theory of radiative scattering of electrons from neutral species. (Author)

Descriptors :   (*NUCLEAR CROSS SECTIONS, BREMSSTRAHLUNG), (*BREMSSTRAHLUNG, *RARE GASES), INELASTIC SCATTERING, INFRARED SPECTROSCOPY, CONTINUOUS SPECTRA, NEON, ARGON, XENON, ELECTRONS, SHOCK TUBES, HIGH TEMPERATURE, TABLES(DATA)

Subject Categories : Atomic and Molecular Physics and Spectroscopy
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE