Accession Number : AD0287490

Title :   THE PHOTOELECTRIC K-ABSORPTION CROSS SECTION OF BERYLLIUM

Corporate Author : CORNELL UNIV ITHACA N Y

Personal Author(s) : PETERSON,T.J. JR.

Report Date : JUL 1962

Pagination or Media Count : 1

Abstract : Measurements of the absolute photoelectric absorption cross section for Be at photon energies slightly greater than the K-ionization threshold energy are presented. Photoelectric absorption by 2's in electrons is possible, but even if the data for wavelengths greater than 115A is extrapolated, the contribution to the total cross section appears to be negligible. This is in accord with the general expectation that K-absorption, if energetically possible, will be strongly favored over L-absorption. (Author)

Descriptors :   *BERYLLIUM, *PHOTOELECTRIC EFFECT, ENERGY, IONIZATION, K BAND, NUCLEAR ENERGY LEVELS, PHOTONS, SPECTROPHOTOMETERS, THEORY, VACUUM APPARATUS

Distribution Statement : APPROVED FOR PUBLIC RELEASE