1.
Appl Radiat Isot
; 66(12): 1999-2006, 2008 Dec.
Artículo
en Inglés
| MEDLINE
| ID: mdl-18701311
RESUMEN
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.