Use este identificador para citar ou linkar para este item:
http://www.repositorio.cdtn.br:8080/jspui/handle/123456789/1299| Título: | Spatial distribution of neutron flux in geological larger sample analysis at CDTN/CNEN, Brazil |
| Título do periódico: | Journal of Radioanalytical and Nuclear Chemistry |
| Autor(es): | Menezes, Maria Ângela de Barros Correia Jaćimović, Radojko Pereira, Claubia |
| Afiliação: | Centro de Desenvolvimento da Tecnologia Nuclear, Belo Horizonte, MG, Brazil Jožef Stefan Institute Ljubljana, Slovenia Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, MG, Brasil |
| Data do documento: | 2015 |
| Palavras-chave: | Neutron activation analysis |
| Resumo: | Iron monitor wire was used to evaluate the neutron flux gradients inside 5 g-geological sample during irradiation. The spatial distribution for thermal flux was about 2 %/cm for radial and axial gradients and about 5 %/cm for radial and 2.5 %/cm for axial gradients for fast neutrons. The results were evaluated using reference material IAEA-SOIL-7 analysed as small and larger samples and tested with calculating En numbers. This test pointed out that all results were consistent within a 95 % confidence interval. The contribution of the neutron flux gradients may be reduced for larger sample using the standard procedure of the k0-instrumental neutron activation analysis |
| Acesso: | R |
| Aparece nas coleções: | Artigo de periódico |
Arquivos associados a este item:
| Arquivo | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| Spatial distribution of neutron flux in geological larger sample.pdf | 353.88 kB | Adobe PDF | Visualizar/Abrir Solictar uma cópia |
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.