Inelastic and anomalous elastic scattering of 88.03-keVγrays

Abstract

Cross sections for the elastic scattering of 88.03-keV For gold, 7.3 keV above its threshold, the experiment agrees with the S-matrix prediction. However, for lead some 25 eV above threshold, the experimental value is about 40% larger than predicted, while for bismuth (2.5 keV below threshold), experiment lies 70% above theory. The measured K-shell photoeff'ect cross section of lead is within 10%%uo of the prediction based on the independent-particle approximation.

Incoherent Scattering of 59.5 keV Gamma Rays by Fe, Zn and Nb

“…The experimental total incoherent scattering di †erential cross-sections per atom is calculated by using the following equation [2] given by Standing et al [19], Basavaraju et al [20] and Kane et al [8,11,12]. This method is explained by Standing et al [19] and Basavaraju et al [20].…”

Elastic scattering of 81-keV γ rays

“…As described previously [1], the error in the measured elastic-scattering cross section der, &ld0 is reduced if the elastic-scattering counts due to a target under study are compared with the Compton scattering counts %co p due to an aluminum target. With such a procedure, the source strength and the detector solid angle do not need to be determined, and only ratios of quantities such as detection ef5ciencies and target transmissions for similar energies are needed.…”