Primary standardization of 72Ga

Koskinas, Marina F.; Moreira, Denise S.; Takeda, M.N.; Seneda, José A.; Dias, Mauro S.

doi:10.1016/j.apradiso.2006.02.025

Cited by 4 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…With activation in the reactor, however, several radionuclides having high-energy gamma lines, such as 72 Ga, 56 Mn, 116 In and 24 Na, can be produced at low additional cost. The application of Ga [7] [8] [9] and In isotopes [10] for detector calibration is hindered so far by the insufficient general confidence in their nuclear data.…”

Section: Introductionmentioning

confidence: 99%

High-energy detector calibration data for k 0-neutron activation analysis

Szentmiklósi

Maróti

Párkányi

et al. 2017

J Radioanal Nucl Chem

View full text Add to dashboard Cite

In k0-neutron activation analysis, HPGe detectors have to be calibrated up to about 3.1 MeV, in order to properly determine the Na, Ca and S content of analytes. Commercial radioactive sources cover the energy range only up to 2.2 MeV, but with activation in the reactor, additional high-energy gamma emitter radionuclides (Ga-72, Mn-56, In-116 and Na-24) can be produced. At a prompt-gamma activation analysis station, where the calibration is available up to 12 MeV, we derived accurate gamma-ray energies and relative intensities for these radionuclides and subsequently used them for broad energy-range efficiency and nonlinearity calibration of NAA detectors as well as a low-level counting station. Keywordsk0-neutron activation analysis, HPGe detector calibration, energy and intensity data, uncertainty budget

show abstract

Section: Introductionmentioning

confidence: 99%

High-energy detector calibration data for k 0-neutron activation analysis

Szentmiklósi

Maróti

Párkányi

et al. 2017

J Radioanal Nucl Chem

View full text Add to dashboard Cite

show abstract

“…O Laboratório de Metrologia Nuclear (LMN) do IPEN tem adquirido grande experiência no campo de padronização de atividade de radionuclídeos, campos de nêutrons, modelagem por Monte Carlo e tratamento estatístico de dados [35][36][37][38][39][40][41][42] . No capítulo 3 são apresentados os resultados e sua discussão.…”

Section: Tabela 11 -Elementos Químicos Da Tabela Periódica Que Podemunclassified

Estudo das covariâncias envolvidas no método k0 de análise por ativação neutrônica

Cardoso¹

View full text Add to dashboard Cite

This work aimed the development of a methodology for the treatment of uncertainty in the k 0 Method for Neutron Activation Analysis (NAA), comprehensively and accurately, by applying the covariance analysis methodology. All parameters involved in determining the concentration of a given element were analyzed with criteria in order to establish the correlations among them. Also established were the possible correlations between the concentrations of different elements for the same sample and for different samples. This procedure generated a large number of correlations that have been rigorously addressed. Data for analysis were obtained experimentally by means of irradiations performed at 24A irradiation position, near the core of the IEA-R1 research reactor, located at IPEN-CNEN/SP. The parameters  and f, characterizing the neutron field were determined by applying several methods from the literature. A detailed statistical treatment was applied to each measurement, verifying the various uncertainties and partial correlations. In order to deepen the study, targets of 64 Zn and 68 Zn were chosen, for which the nuclear parameters k 0 and Q 0 showed discrepancies in the literature in order to determine them experimentally. For 64 Zn, the values for these parameters resulted 5.63(8) × 10-3 and 1.69(6), respectively. For 68 Zn they resulted 4.00(6) × 10-4 and 2.34(4), respectively. These values were compared with data from the literature. The Monte Carlo method was applied at various stages of study, to allow accurate determination of some parameters needed for the complete data analysis.

show abstract

Radionuclide Standardization

Malonda

2012

Handbook of Radioactivity Analysis

View full text Add to dashboard Cite

Primary standardization of 72Ga

Cited by 4 publications

References 4 publications

High-energy detector calibration data for k 0-neutron activation analysis

High-energy detector calibration data for k 0-neutron activation analysis

Estudo das covariâncias envolvidas no método k0 de análise por ativação neutrônica

Radionuclide Standardization

Contact Info

Product

Resources

About