Determination of uranium and thorium using gamma spectrometry: a pilot study

Olivares, Diango Manuel Montalván; Koch, Evelin Silva; Guevara, M. V. Manso; Velasco, Fermín García

doi:10.1088/1742-6596/975/1/012035

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2023

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“…Prior to any application, each isotope must be associated with a spectrum, so in this work, a group of four synthetic samples and two decay chains of naturally occurring radioactive elements were analyzed. The observed peaks were associated with γ-ray nuclei emissions of the highest absolute intensity with the assistance of nuclear structure databases [11][12][13] and similar references [14,15]. Subsequently, spectroscopy techniques are implemented to determine their corresponding radioactive activities.…”

Section: Introductionmentioning

confidence: 99%

Estimation of radioactive activity by gamma spectroscopy

Restrepo

Quintero

2023

rev. investig. apl. nucl.

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Radioactive sources of isotopes 22Na, 137Cs, 60Co, 133Ba and decay chains of Th and U are analyzed by means of gamma spectroscopy. The instrument used, a cylindrical NaI(Tl) scintillator from Mirion Technologies (Canberra) with dimensions of 2 × 2, is characterized by its calibration and absolute efficiency. The peak energies of the gamma spectra obtained are identified and related to corresponding isotopes and matter-radiation interactions according to nuclear and atomic databases. From these data, spectroscopic methods are implemented to compute radioactive activities for each source.

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Section: Introductionmentioning

confidence: 99%