Photoneutron Cross Sections for Ag¹⁰⁷, Mo⁹² and Zr⁹⁰

Abstract

Photoneutron cross sections and the yield curves were taken by the residual activity method for Ag¹⁰⁷, Mo⁹² and Zr⁹⁰. Threshold energy were obtained as 9.35±0.1 MeV, 9.15±0.1 MeV, 12.38±0.1 MeV and 12.3±0.1 Mev for Ag^107,109, Mo⁹² and Zr⁹⁰ respectively. The energy for the maximum cross section was obtained as 14.5 MeV for Ag¹⁰⁷, 16.5 MeV for Mo⁹² and 17 MeV for Zr⁹⁰. The giant resonance widths were measured about 5.3 MeV, 2.7 MeV and 2.9 MeV respectively. Intrinsic quadrupole moment determined from above data was (1.9±0.7)×10⁻²⁴ cm² for Ag¹⁰⁷.