Determination of the gamma and X-ray emission intensities of terbium-161. (August 2021)

• Record Type: Journal Article
• Authors: Juget, Frédéric; Talip, Zeynep; Buchillier, Thierry; Durán, M. Teresa; Nedjadi, Youcef; Desorgher, Laurent; Bochud, François; Grundler, Pascal; van der Meulen, Nicholas P.; Bailat, Claude
• Is Part Of: Applied radiation and isotopes. Volume 174(2021)
• Publication Date: 2021-08
• Subjects: 161Tb -- gamma-ray spectrometry -- gamma-ray emission intensities; Radiology -- Periodicals; Radiation -- Industrial applications -- Periodicals; Nuclear chemistry -- Periodicals; Internet resource; Periodical; 660.298
• DOI: 10.1016/j.apradiso.2021.109770
• Languages: English
• ISSNs: 0969-8043

Abstract

Abstract: In this study, the gamma and X-ray emission intensities of 161 Tb were determined using a high-purity germanium spectrometer. The samples used were previously standardised by coincidence counting and Triple to Double Coincidence Ratio (TDCR) methods. A total of 28 gamma-rays and 4 X-rays were measured and compared with previous measurements performed more than 30 years ago. Most of the lines are in agreement, while large discrepancies are observed for 5 lines. The uncertainties have been dramatically decreased with respect to previous measurements giving a better knowledge of the 161 Tb day. Highlights: Gamma spectrometry for 161 Tb using HPGe detector. Activity sample measured with TDCR and coincidence counting method. Emission intensities of gamma and X-rays emission have been measured. Large reduction of uncertainties compared with previous measurements.