Angular Distribution of Photoelectrons Produced by 0.4-0.8-Mev Polarized Photons

Abstract

The angular distribution of high-energy (0.4 to 0.8 Mev) photoelectrons produced in Pb and Au foils by linearly polarized photons has been investigated using scintillation counting and pulse-height analysis techniques. A Compton-scattered photon beam from ${\mathrm{Co}}^{60}$ provided a source of partially polarized radiation. Experimental results confirm the theoretical prediction of predominate photoemission orthogonal to the electric vector of the incident photon for photoelectron energies greater than 0.5 Mev.