title: Photon emissions observed in the decay of 233Th.
abstract: Stock solutions of (233)Th were produced by the (232)Th(n,gamma) reaction and multiple purifications were used to obtain relative intensities of weak transitions. Liquid scintillation counting (absolute disintegration rates) and gamma-ray spectroscopy with HPGe detectors yielded absolute photon intensities. Absolute intensities in % (with statistical uncertainties) of prominent radiations (L and K X-rays; 29, 86, and 459 keV gamma-rays) are 8.23(8), 1.32(10), 2.17(1), 1.843(2), and 0.989(2), respectively. These intensities are more precise and approximately 30% lower than previous results.
authors.affiliation: Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA. dandev@umich.edu
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: DeVries
authors.forename: Henry C
authors.initials: HC
authors.lastname: Griffin
mesh_terms: D003198:Computer Simulation; D006207:Half-Life; D008956:Models, Chemical; D017785:Photons; D011829:Radiation Dosage; D011874:Radiometry; D013910:Thorium / Q000032:analysis* / Q000737:chemistry*
chemical_list: D013910:Thorium