Neutron-Capture Gamma-Ray Studies in Isotopes of Tungsten

Abstract

$\ensuremath{\gamma}$-ray spectra from a neutral-tungsten target following the capture of 0.06-eV neutrons and neutrons corresponding in energy to the lowest-energy resonances in ${\mathrm{W}}^{182}$, ${\mathrm{W}}^{183}$, and ${\mathrm{W}}^{186}$ have been obtained at high resolution using a lithium-drifted germanium detector. Transitions have been identified which take place from the capture states to states near ground states in the final nuclei. Low-lying states previously known have been observed and several new states have been identified. Precise energy values and approximate relative intensities of the transitions are given.