Abstract
is a decay candidate isotope, and is used in multiple experiments searching for this hypothetical decay mode. These experiments require precise information about neutron capture for their background characterization and minimization. Thermal and resonant neutron capture on have been measured at the Detector for Advanced Neutron Capture Experiments (DANCE) at the Los Alamos Neutron Science Center. A neutron beam ranging from thermal energy to greater than 100 keV was incident on a gas cell filled with isotopically pure . The relative neutron capture cross sections for neutrons at thermal energies and the first resonance at 2.154 keV have been measured, yielding a new absolute measurement of b for the thermal neutron capture cross section. Additionally, the cascades for captures at both energies have been measured, and cascade models have been developed which may be used by experiments using .
- Received 18 May 2016
- Revised 24 July 2016
DOI:https://doi.org/10.1103/PhysRevC.94.034617
©2016 American Physical Society