Measurement of isomeric yield ratios in In-nat and Sn-nat with 50, 60, and 70 MeV bremsstrahlung photons

Abstract

The isomeric yield ratios of In-110m,In-g, In-111m,In-g, In-112m,In-g, and In-117m,In-g were measured in photonuclear reactions for the end point energies of bremsstrahlung about 50, 60, and 70 MeV. The isomeric yield ratios were determined from the induced activities in the irradiated samples using a high-purity germanium detector equipped with a multichannel analyzer. The results are the first measurements in this energy region. Experimental values of the isomeric yield ratios are compared with the corresponding values found in the literature. (c) 2009 Elsevier B.V. All rights reserved.