Accession Number : AD0663424

Title :   COMPTON SCATTERING BY BOUND ELECTRONS.

Descriptive Note : Technical rept. for Jul 66-May 67,

Corporate Author : AIR FORCE WEAPONS LAB KIRTLAND AFB N MEX

Personal Author(s) : East,Larry V. ; Lewis,Edwin R.

Report Date : DEC 1967

Pagination or Media Count : 51

Abstract : The deviation in the Compton effect due to the finite binding energy of the atomic electrons was experimentally determined for K-shell electrons of tantalum, gold, and uranium. The differential cross section for scattering of 662 keV photons by K-shell electrons was obtained by measurements of the scattered photons in coincidence with the accompanying K X-ray and compared with the Klein-Nishina cross section for scattering by free electrons. The behavior of the ratio of the two cross section ratios was determined for scattering angles varying from 20 degrees to 70 degrees. The results indicate that the cross section ratio approaches zero as the photon scattering angle decreases to zero, and becomes >1 for scattering angles greater than 40 degrees for Ta and 50 degrees for Au. (Author)

Descriptors :   (*ATOMIC ORBITALS, *COMPTON SCATTERING), (*ELECTRONS, COMPTON SCATTERING), TANTALUM, GOLD, URANIUM, PHOTONS, SCATTERING, GAMMA RAYS, X RAYS, DIFFERENTIAL CROSS SECTIONS, INCOHERENT SCATTERING

Subject Categories : Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE