Relevant bibliographies by topics / Formalismo de westcott

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'Formalismo de westcott'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Journal articles on the topic "Formalismo de westcott"

1

Li, Xiaosong. "In situ measurement of neutron temperature for the extended k0 NAA at FRM II." Journal of Radioanalytical and Nuclear Chemistry 326, no. 2 (October 10, 2020): 1391–97. http://dx.doi.org/10.1007/s10967-020-07386-0.

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Abstract The neutron temperature at different irradiation positions in the research reactor FRM II was measured using thermometer labels together with lutetium standards. This was the first time to measure the local temperature at the irradiation positions with this combination. The simplified Westcott formalism was used to calculate the neutron temperature using Lu and g(Tn) factors from different data sources. The results showed agreement between neutron temperature according to the Lu method and the temperature showed on the labels. They can be used as a reliable alternative to determine the neutron temperature instead of using Lu standards in the extended k0 NAA.
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2

de Corte, F., F. Bellemans, P. De Neve, and A. Simonits. "The use of a modified Westcott-formalism in thek o-standardization of NAA: The state of affairs." Journal of Radioanalytical and Nuclear Chemistry 179, no. 1 (March 1994): 93–103. http://dx.doi.org/10.1007/bf02037929.

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3

van Sluijs, R., R. Jacimovic, and G. Kennedy. "A simplified method to replace the Westcott formalism in k 0-NAA using non-1/v nuclides." Journal of Radioanalytical and Nuclear Chemistry 300, no. 2 (January 23, 2014): 539–45. http://dx.doi.org/10.1007/s10967-014-2958-8.

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4

Yavar, Alireza, Sukiman Sarmani, Abdul Khalik Wood, Nurul Syakireen Zainal, and Kok Siong Khoo. "Development and implementation of Høgdahl convention and Westcott formalism for k0-INAA application at Malaysian Nuclear Agency reactor." Journal of Radioanalytical and Nuclear Chemistry 291, no. 2 (December 16, 2011): 521–27. http://dx.doi.org/10.1007/s10967-011-1574-0.

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5

Akaho, E. H. K., and B. J. B. Nyarko. "Characterization of neutron flux spectra in irradiation sites of MNSR reactor using the Westcott-formalism for the k0 neutron activation analysis method." Applied Radiation and Isotopes 57, no. 2 (August 2002): 265–73. http://dx.doi.org/10.1016/s0969-8043(02)00106-9.

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6

Alghem Hamidatou, L., and M. Ramdhane. "Characterization of neutron spectrum at Es-Salam Research Reactor using Høgdahl convention and Westcott formalism for the k0-based neutron activation analysis." Journal of Radioanalytical and Nuclear Chemistry 278, no. 3 (November 28, 2008): 627–30. http://dx.doi.org/10.1007/s10967-008-1205-6.

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7

Ayivor, J. E., L. K. N. Okine, S. B. Dampare, B. J. B. Nyarko, and S. K. Debrah. "The application of Westcott Formalism k0 NAA method to estimate short and medium lived elements in some Ghanaian herbal medicines complemented by AAS." Radiation Physics and Chemistry 81, no. 4 (April 2012): 403–9. http://dx.doi.org/10.1016/j.radphyschem.2011.12.034.

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8

Kasban, H., and Ashraf Hamid. "Evaluation of neutron flux parameters in irradiation sites of research reactor using the Westcott-formalism for the k 0 neutron activation analysis method." Radiation Physics and Chemistry 117 (December 2015): 35–40. http://dx.doi.org/10.1016/j.radphyschem.2015.07.013.

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9

Verheijke, M. L. "Relation between the høgdahl convention and the modified Westcott formalism for (n, γ) reactions with a pure 1/v n cross-section behavior." Journal of Radioanalytical and Nuclear Chemistry Articles 183, no. 2 (September 1994): 293–99. http://dx.doi.org/10.1007/bf02037998.

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Dissertations / Theses on the topic "Formalismo de westcott"

1

Júnior, Felisberto Alves Ferreira. "Medida da secção de choque térmica e da integral de ressonância da reação 41K(n,)42K." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-03112008-104617/.

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Pastilhas de nitrato de potássio foram irradiadas no núcleo do reator de pesquisas IEA-R1m do Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN-SP, operando a 2 MW de potência, para determinar a secção de choque térmica e integral de ressonância da reação 41K(n,g)42K. O fluxo de nêutrons foi monitorado com folhas de liga ouro-alumínio. As atividades induzidas nos alvos foram determinadas por espectroscopia gama com detectores de germânio hiper puro. Os cálculos realizados se basearam no formalismo de Westcott. Foram realizadas simulações com o código MCNP (Monte Carlo N-Particle) para determinar a auto-blindagem e a depressão do fluxo de nêutrons nas pastilhas durante as irradiações e os fatores de correção da eficiência de detecção para fontes volumétricas, que leva em conta a absorção de raios gama nas mesmas. Foi efetuado um tratamento estatístico das incertezas envolvidas e determinadas as covariâncias entre os resultados, incluindo aquelas decorrentes das incertezas do padrão de referência (ouro). Os resultados obtidos foram comparados com os de outros autores. Foi testada a possibilidade de se observar o produto da reação 41K(n,g)42K(n,g)43K.
Pellets of potassium nitrate were irradiated in the IPEN/CNEN-SP (Instituto de Pesquisas Energeticas e Nucleares, Comissao de Energia Nuclear, Sao Paulo, SP) IEAR1m reactor core operating at 2 MW power in order to determine the 41K(n,g)42K reaction thermal cross-section and resonance integral. The neutron flux was monitored by Au-Al alloy foils, and the Westcott formalism was applied. Neutron self-shielding, flux depression and gamma-ray self-absorption in the relatively large samples, as well as the gamma-ray detection efficiency correction factor, were determined by simulation with MCNP code. The data reduction statistical methods included the determination of the covariances between the obtained results and the standard cross-sections used (Au). The results were compared to those already published. The observation of the consecutive neutron capture reaction leading to 43K was tried.
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