International exercise on 124Sb activity measurements

Chauvenet, B.; Bé, Marie-Martine; Amiot, Marie-Noëlle; Bobin, Christophe; Lépy, Marie‐Christine; Branger, T.; Lanièce, I.; Luca, A.; Sahagia, Maria; Wätjen, A.C.; Kossert, Karsten; Ott, Oliver J.; Nähle, O.; Dryák, P.; Sochorová, Jana; Kovář, Petr; Auerbach, Pavel; Altzitzoglou, T.; Pommé, S.; Sibbens, G.; Ammel, R. Van; Paepen, J.; Iwahara, Akira; Delgado, José Ubiratan; Poledna, R.; Silva, C.J. da; Johansson, Lena; Stroak, Andrew; Bailat, Claude; Nedjadi, Youcef; Spring, Philippe

doi:10.1016/j.apradiso.2010.01.037

Cited by 10 publications

(2 citation statements)

References 3 publications

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“…Example: 124 Sb decays by β − -particle emissions to excited levels in 124 Te. In 2009 an international exercise was conducted to improve its decay scheme [15], [16], with relative and absolute γ ray intensities determined by several laboratories. Looking at the decay scheme, it was apparent that it would be best to use the relative results and calculated internal conversion coefficients, because the energies of the transitions involved are relatively high and their respective multipolarities are E2, hence the conversion coefficients can be considered very reliable.…”

Section: C) Evaluation From the Decay Scheme Data Based On Relativementioning

confidence: 99%

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Recommended standards for gamma ray intensities

Bé¹,

Chechev²

2013

Nuclear Instruments and Methods in Physics Research Section A:

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Gamma ray data are used in more and more areas of application, and so over the years the demand for recommended gamma ray energies and intensities has increased. This paper proposes a list of gamma rays whose intensity is sufficiently well-known and they can be used for the calibration of gamma ray spectrometers and other applications; it is based on studies carried out by an international group of evaluators: the Decay Data Evaluation Project. One goal of this paper is to gather this set of data together in order to facilitate and generalize their use. In the first part, a brief description of the methodology followed throughout the evaluations is given, different methods of gamma ray intensity evaluation are presented, some typical examples of evaluations are shown; in the second part, the list of chosen nuclides is given along with their applications, and finally a list of recommended gamma ray intensities is presented.

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Section: C) Evaluation From the Decay Scheme Data Based On Relativementioning

confidence: 99%

“…In Table 2 a list of chosen radionuclides is given. It corresponds to the list of nuclides for which decay data were evaluated by the DDEP collaboration up to the end of 2012 [5], [15]. In Table 3 the recommended gamma ray intensities, greater than 1%, are presented (fourth column).…”

Section: Recommended Gamma Ray Intensitiesmentioning

confidence: 99%

Recommended standards for gamma ray intensities

Bé¹,

Chechev²

2013

Nuclear Instruments and Methods in Physics Research Section A:

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Radionuclide metrology: confidence in radioactivity measurements

Pommé

2022

J Radioanal Nucl Chem

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Radionuclides, whether naturally occurring or artificially produced, are readily detected through their particle and photon emissions following nuclear decay. Radioanalytical techniques use the radiation as a looking glass into the composition of materials, thus providing valuable information to various scientific disciplines. Absolute quantification of the measurand often relies on accurate knowledge of nuclear decay data and detector calibrations traceable to the SI units. Behind the scenes of the radioanalytical world, there is a small community of radionuclide metrologists who provide the vital tools to convert detection rates into activity values. They perform highly accurate primary standardisations of activity to establish the SI-derived unit becquerel for the most relevant radionuclides, and demonstrate international equivalence of their standards through key comparisons. The trustworthiness of their metrological work crucially depends on painstaking scrutiny of their methods and the elaboration of comprehensive uncertainty budgets. Through meticulous methodology, rigorous data analysis, performance of reference measurements, technological innovation, education and training, and organisation of proficiency tests, they help the user community to achieve confidence in measurements for policy support, science, and trade. The author dedicates the George Hevesy Medal Award 2020 to the current and previous generations of radionuclide metrologists who have devoted their professional lives to this noble endeavour.

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Liquid Scintillation Analysis

L’Annunziata¹,

Kessler²

2012

Handbook of Radioactivity Analysis

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International exercise on 124Sb activity measurements

Cited by 10 publications

References 3 publications

Recommended standards for gamma ray intensities

Recommended standards for gamma ray intensities

Radionuclide metrology: confidence in radioactivity measurements

Liquid Scintillation Analysis

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