Average neutron capture cross sections of 151Eu and 153Eu from 3 to 100 keV.

Abstract

Neutron capture cross sections of europium isotopes 151Eu and 153Eu were measured in the neutron energy range of 3~100keV. Experiments were carried out with the time-of-flight facility at the 52 m station of the JAERI Electron Linear Accelerator. Prompt capture γ-rays were detected by a large liquid scintillation detector and the neutron flux shape was determined with a 6Li glass scintillation detector. The average capture cross sections were examined in terms of energy independent strength functions for 151Eu and 153Eu.